WISE-PS1-STRM

WISE + Pan-STARRS1 Source Types and Redshifts with Machine Learning (WISE-PS1-STRM)

Primary Investigator: István Szapudi

HLSP Authors: Robert Beck, Curt Dodds

Released: 2022-09-14

Updated: 2022-09-14

Primary Reference(s): Beck et al. 2022

DOI: 10.17909/wf64-kq10

Citations: See ADS Statistics

Read Me

Two all-sky projections plot galaxy overdensities. — A representative redshift slice, 0.3 ≤ z ≤ 0 .4 of PS1-STRM and WISE-PS1-STRM for visual comparison. The total number of objects in the latter is less than half of the former. Some PS1 artifacts improved, suggesting higher homogeneity, although some WISE artifacts have become visible. There is a slight “limb darkening” towards the Milky Way due to misidentification of galaxies in crowded star fields. This problem is present in both WISE and PS1, thus we would not expect an improvement.

Overview

WISE-PS1-STRM is a neural network source classification and photometric redshift catalog extracted from a cross-match between the WISE All-Sky and PS1 3π DR2 source catalogs. The resulting catalog has 354,590,570 objects, significantly fewer than the parent PS1 catalog, but its combination of optical and infrared colors facilitate both better source classification and photometric redshift estimation. A neural network classified objects into galaxies, quasars, and stars, then another network estimated photometric redshifts for the galaxies. The star sample purity and quasar sample completeness measures improve substantially, and the resulting photo-z ’s are significantly more accurate in terms of statistical scatter and bias than those calculated from PS1 properties alone. See the README file and the primary reference paper for a detailed description of the catalog metadata.

A related, earlier work using neural networks to classify PS1 sources (without WISE information) can be found as the PS1-STRM HLSP.

Data Products

Data file naming convention:

hlsp_wise-ps1-strm_ps1-wise_multi_<decmin>-<decmax>_multi_v1_cat.csv.gz

where:

<decmin> = Minimum declination this file covers (in degrees). "m" and "p" represent negative and postive signs.
<decmax> = Maximum declination this file covers (in degrees). "m" and "p" represent negative and postive signs.

An example file name that covers a declination range from -5 < dec < +0 degrees is:

hlsp_wise-ps1-strm_ps1-wise_multi_m05-p00_multi_v1_cat.csv.gz

Data file types:

_cat.csv.gz	Portion of the catalog covering a given declination range.
_sha256sum.txt	Checksum file for all _cat.csv.gz files.
_readme.txt	README containing a description of the catalog and columns.

Catalog Column Descriptions

Click the Expand All link to see a table describing the catalog column names, units, and descriptions.

Name	Unit	Data Type	Size	Description
objID	dimensionless	bigint	8	[PS1] The main PS1 source identifier, should be used to match with other PS1 tables. Not unique.
raMean	deg	float	8	[PS1] Right ascension from single-epoch detections (weighted mean) in equinox J2000 at the mean epoch given by epochMean.
raMeanErr	arcsec	real	4	[PS1] Right ascension standard deviation from single-epoch detections.
decMean	deg	float	8	[PS1] Decl. from single-epoch detections (weighted mean) in equinox J2000 at the mean epoch given by epochMean.
decMeanErr	arcsec	real	4	[PS1] Decl. standard deviation from single-epoch detections.
l	deg	float	8	[PS1] Galactic longitude.
b	deg	float	8	[PS1] Galactic latitude.
distance_Deg	deg	float	8	The angular distance between the PS1 and WISE detections, in degrees.
sqrErr_Arcsec	arcsec^2	float	8	The combined PS1-WISE astrometric uncertainty, squared, in arcsec^2.
BayesFactor	dimensionless	float	8	The Bayes factor (likelihood ratio) of the PS1-WISE cross-match (see Sect. 3.1 of B22).
cntr	dimensionless	bigint	8	[WISE] Unique identification number for the Catalog source. Refer to https://wise2.ipac.caltech.edu/docs/release/allsky/expsup/sec2_2a.html for more information.
HtmID	dimensionless	bigint	8	[PS1] Hierarchical triangular mesh (Szalay et al. 2007) index.
ra	deg	float	8	[WISE] J2000 right ascension with respect to the 2MASS PSC reference frame
dec	deg	float	8	[WISE] J2000 declination with respect to the 2MASS PSC reference frame.
sigra	arcsec	float	8	[WISE] One-sigma uncertainty in right ascension coordinate.
sigdec	arcsec	float	8	[WISE] One-sigma uncertainty in declination coordinate.
sigradec	arcsec	float	8	[WISE] The co-sigma of the equatorial position uncertainties, sig_ra, sig_dec (-â+¦, -â+¦). The co-sigma is related to the covariance between the position errors V+¦+¦ by the formula V+¦+¦ = -â+¦+¦+ù\|-â+¦+¦\|. This maintains the sign information for the correlation, since -â+¦+¦ may be negative. It is more natural to carry the co-sigma along with the other uncertainties instead of the covariance because the former is in the same units as the other uncertainties.
cc_flags	dimensionless	varchar	4	[WISE] Contamination and confusion flag. Four character string, one character per band [W1/W2/W3/W4], that indicates that the photometry and/or position measurements of a source may be contaminated or biased due to proximity to an image artifact.
ext_flg	dimensionless	smallint	2	[WISE] Extended source flag. This is an integer flag, the value of which indicates whether or not the morphology of a source is consistent with the WISE point spread function in any band, or whether the source is associated with or superimposed on a previously known extended object from the 2MASS Extended Source Catalog (XSC).
ph_qual	dimensionless	varchar	4	[WISE] Photometric quality flag. Four character flag, one character per band [W1/W2/W3/W4], that provides a shorthand summary of the quality of the profile-fit photometry measurement in each band, as derived from the measurement signal-to-noise ratio.
moon_lev	dimensionless	varchar	4	[WISE] Scattered moonlight contamination flag. This is a four-character string, one character per band, in which the value is an integer indicates the fraction of single-exposure frames on which the source was measured that were possibly contaminated by scattered moonlight.
w1mpro	mag	float	8	[WISE] W1 magnitude measured with profile-fitting photometry, or the magnitude of the 95% confidence brightness upper limit if the W1 flux measurement has SNR<2. This column is null if the source is nominally detected in W1, but no useful brightness estimate could be made.
w1sigmpro	mag	float	8	[WISE] W1 profile-fit photometric measurement uncertainty in mag units. This column is null if the W1 profile-fit magnitude is a 95% confidence upper limit or if the source is not measurable.
w1rchi2	dimensionless	float	8	[WISE] Reduced -ç2 of the W1 profile-fit photometry measurement. This column is null if the W1 magnitude is a 95% confidence upper limit (i.e. the source is not detected).
w1sat	dimensionless	float	8	[WISE] Saturated pixel fraction, W1. The fraction of all pixels within the profile-fitting area in the stack of single-exposure images used to characterize this source that are flagged as saturated. A value larger than 0.0 indicates one or more pixels of saturation. Saturation begins to occur for point sources brighter than [W1]~8 mag. Saturation may occur in fainter sources because of a charged particle strike.
w1mag	mag	float	8	[WISE] W1 "standard" aperture magnitude. This is the curve-of-growth corrected source brightness measured in an 8.25" radius circular aperture centered on the source position on the Atlas Image. If the source is not detected in the aperture measurement, this is the 95% confidence upper limit to the brightness. The background sky reference level is measured in an annular region with inner radius of 50" and outer radius of 70". The curve-of-growth correction is given in w1mcor.
w1sigm	mag	float	8	[WISE] Uncertainty in the W1 "standard" aperture magnitude.
w1flg	dimensionless	smallint	2	[WISE] W1 "standard" aperture measurement quality flag. This flag indicates if one or more image pixels in the measurement aperture for this band is confused with nearby objects, is contaminated by saturated or otherwise unusable pixels, or is an upper limit. The flag value is an integer that is the combination of one or more of the following values that signify different conditions:
w1mag_1	mag	float	8	[WISE] W1 5.5" radius aperture magnitude. This is the calibrated source brightness measured in a 5.5" radius circular aperture centered on the source position on the Atlas Image. If the source is not detected in the aperture measurement, this is the 95% confidence upper limit to the brightness. The background sky reference level is measured in an annular region with inner radius of 50" and outer radius of 70". No curve-of-growth correction has been applied.
w1sigm_1	mag	float	8	[WISE] Uncertainty in the W1 5.5" radius aperture magnitude.
w1flg_1	dimensionless	smallint	2	[WISE] W1 5.5" radius aperture magnitude quality flag. This flag indicates if one or more image pixels in the measurement aperture for this band is confused with nearby objects, is contaminated by saturated or otherwise unusable pixels, or is an upper limit. The flag values are as described for the standard aperture photometry quality flag, w1flg.
w1mag_4	mag	float	8	[WISE] W1 13.75" radius aperture magnitude. This is the calibrated source brightness measured in a 13.75" radius circular aperture centered on the source position on the Atlas Image. If the source is not detected in the aperture measurement, this is the 95% confidence upper limit to the brightness. The background sky reference level is measured in an annular region with inner radius of 50" and outer radius of 70". No curve-of-growth correction has been applied.
w1sigm_4	mag	float	8	[WISE] Uncertainty in the W1 13.75" radius aperture magnitude.
w1flg_4	dimensionless	smallint	2	[WISE] W1 13.75" radius aperture magnitude quality flag. This flag indicates if one or more image pixels in the measurement aperture for this band is confused with nearby objects, is contaminated by saturated or otherwise unusable pixels, or is an upper limit. The flag values are as described for the standard aperture photometry quality flag, w1flg.
w1mag_7	mag	float	8	[WISE] W1 22.0" radius aperture magnitude. This is the calibrated source brightness measured in a 22.0" radius circular aperture centered on the source position on the Atlas Image. If the source is not detected in the aperture measurement, this is the 95% confidence upper limit to the brightness. The background sky reference level is measured in an annular region with inner radius of 50" and outer radius of 70". No curve-of-growth correction has been applied.
w1sigm_7	mag	float	8	[WISE] Uncertainty in the W1 22.0" radius aperture magnitude.
w1flg_7	dimensionless	smallint	2	[WISE] W1 22.0" radius aperture magnitude quality flag. This flag indicates if one or more image pixels in the measurement aperture for this band is confused with nearby objects, is contaminated by saturated or otherwise unusable pixels, or is an upper limit. The flag values are as described for the standard aperture photometry quality flag, w1flg.
w2mpro	mag	float	8	[WISE] W2 magnitude measured with profile-fitting photometry, or the magnitude of the 95% confidence brightness upper limit if the W2 flux measurement has SNR<2. This column is null if the source is nominally detected in W2, but no useful brightness estimate could be made.
w2sigmpro	mag	float	8	[WISE] W2 profile-fit photometric measurement uncertainty in mag units. This column is null if the W2 profile-fit magnitude is a 95% confidence upper limit or if the source is not measurable.
w2rchi2	dimensionless	float	8	[WISE] Reduced -ç2 of the W2 profile-fit photometry measurement. This column is null if the W2 magnitude is a 95% confidence upper limit (i.e. the source is not detected).
w2sat	dimensionless	float	8	[WISE] Saturated pixel fraction, W2. The fraction of all pixels within the profile-fitting area in the stack of single-exposure images used to characterize this source that are flagged as saturated. A value larger than 0.0 indicates one or more pixels of saturation. Saturation begins to occur for point sources brighter than [W2]~7 mag. Saturation may occur in fainter sources because of a charged particle strike.
w2mag	mag	float	8	[WISE] W2 "standard" aperture magnitude. This is the curve-of-growth corrected source brightness measured in an 8.25" radius circular aperture centered on the source position on the Atlas Image. If the source is not detected in the aperture measurement, this is the 95% confidence upper limit to the brightness. The background sky reference level is measured in an annular region with inner radius of 50" and outer radius of 70". The curve-of-growth correction is given in w2mcor.
w2sigm	mag	float	8	[WISE] Uncertainty in the W2 "standard" aperture magnitude.
w2flg	dimensionless	smallint	2	[WISE] W2 "standard" aperture measurement quality flag. This flag indicates if one or more image pixels in the measurement aperture for this band is confused with nearby objects, is contaminated by saturated or otherwise unusable pixels, or is an upper limit. The flag value is an integer that is the combination of one or more of the following values that signify different conditions:
w2mag_1	mag	float	8	[WISE] W2 5.5" radius aperture magnitude. This is the calibrated source brightness measured in a 5.5" radius circular aperture centered on the source position on the Atlas Image. If the source is not detected in the aperture measurement, this is the 95% confidence upper limit to the brightness. The background sky reference level is measured in an annular region with inner radius of 50" and outer radius of 70". No curve-of-growth correction has been applied.
w2sigm_1	mag	float	8	[WISE] Uncertainty in the W2 5.5" radius aperture magnitude.
w2flg_1	dimensionless	smallint	2	[WISE] W2 5.5" radius aperture magnitude quality flag. This flag indicates if one or more image pixels in the measurement aperture for this band is confused with nearby objects, is contaminated by saturated or otherwise unusable pixels, or is an upper limit. The flag values are as described for the standard aperture photometry quality flag, w2flg.
w2mag_4	mag	float	8	[WISE] W2 13.75" radius aperture magnitude. This is the calibrated source brightness measured in a 13.75" radius circular aperture centered on the source position on the Atlas Image. If the source is not detected in the aperture measurement, this is the 95% confidence upper limit to the brightness. The background sky reference level is measured in an annular region with inner radius of 50" and outer radius of 70". No curve-of-growth correction has been applied.
w2sigm_4	mag	float	8	[WISE] Uncertainty in the W2 13.75" radius aperture magnitude.
w2flg_4	dimensionless	smallint	2	[WISE] W2 13.75" radius aperture magnitude quality flag. This flag indicates if one or more image pixels in the measurement aperture for this band is confused with nearby objects, is contaminated by saturated or otherwise unusable pixels, or is an upper limit. The flag values are as described for the standard aperture photometry quality flag, w2flg.
w2mag_7	mag	float	8	[WISE] W2 22.0" radius aperture magnitude. This is the calibrated source brightness measured in a 22.0" radius circular aperture centered on the source position on the Atlas Image. If the source is not detected in the aperture measurement, this is the 95% confidence upper limit to the brightness. The background sky reference level is measured in an annular region with inner radius of 50" and outer radius of 70". No curve-of-growth correction has been applied.
w2sigm_7	mag	float	8	[WISE] Uncertainty in the W2 22.0" radius aperture magnitude.
w2flg_7	dimensionless	smallint	2	[WISE] W2 22.0" radius aperture magnitude quality flag. This flag indicates if one or more image pixels in the measurement aperture for this band is confused with nearby objects, is contaminated by saturated or otherwise unusable pixels, or is an upper limit. The flag values are as described for the standard aperture photometry quality flag, w2flg.
w3mpro	mag	float	8	[WISE] W3 magnitude measured with profile-fitting photometry, or the magnitude of the 95% confidence brightness upper limit if the W3 flux measurement has SNR<2. This column is null if the source is nominally detected in W3, but no useful brightness estimate could be made.
w3sigmpro	mag	float	8	[WISE] W3 profile-fit photometric measurement uncertainty in mag units. This column is null if the W3 profile-fit magnitude is a 95% confidence upper limit or if the source is not measurable.
w3rchi2	dimensionless	float	8	[WISE] Reduced -ç2 of the W3 profile-fit photometry measurement. This column is null if the W3 magnitude is a 95% confidence upper limit (i.e. the source is not detected).
w3sat	dimensionless	float	8	[WISE] Saturated pixel fraction, W3. The fraction of all pixels within the profile-fitting area source in the stack of single-exposure images used to characterize this source that are flagged as saturated. A value larger than 0.0 indicates one or more pixels of saturation. Saturation begins to occur for point sources brighter than [W3]~4 mag. Saturation may occur in fainter sources because of a charged particle strike.
w3mag	mag	float	8	[WISE] W3 "standard" aperture magnitude. This is the curve-of-growth corrected source brightness measured in an 8.25" radius circular aperture centered on the source position on the Atlas Image. If the source is not detected in the aperture measurement, this is the 95% confidence upper limit to the brightness. The background sky reference level is measured in an annular region with inner radius of 50" and outer radius of 70". The curve-of-growth correction is given in w3mcor.
w3sigm	mag	float	8	[WISE] Uncertainty in the W3 "standard" aperture magnitude.
w3flg	dimensionless	smallint	2	[WISE] W3 "standard" aperture measurement quality flag. This flag indicates if one or more image pixels in the measurement aperture for this band is confused with nearby objects, is contaminated by saturated or otherwise unusable pixels, or is an upper limit. The flag value is an integer that is the combination of one or more of the following values that signify different conditions:
w3mag_1	mag	float	8	[WISE] W3 5.5" radius aperture magnitude. This is the calibrated source brightness measured in a 5.5" radius circular aperture centered on the source position on the Atlas Image. If the source is not detected in the aperture measurement, this is the 95% confidence upper limit to the brightness. The background sky reference level is measured in an annular region with inner radius of 50" and outer radius of 70". No curve-of-growth correction has been applied.
w3sigm_1	mag	float	8	[WISE] Uncertainty in the W3 5.5" radius aperture magnitude.
w3flg_1	dimensionless	smallint	2	[WISE] W3 5.5" radius aperture magnitude quality flag. This flag indicates if one or more image pixels in the measurement aperture for this band is confused with nearby objects, is contaminated by saturated or otherwise unusable pixels, or is an upper limit. The flag values are as described for the standard aperture photometry quality flag, w3flg.
w3mag_4	mag	float	8	[WISE] W3 13.75" radius aperture magnitude. This is the calibrated source brightness measured in a 13.75" radius circular aperture centered on the source position on the Atlas Image. If the source is not detected in the aperture measurement, this is the 95% confidence upper limit to the brightness. The background sky reference level is measured in an annular region with inner radius of 50" and outer radius of 70". No curve-of-growth correction has been applied.
w3sigm_4	mag	float	8	[WISE] Uncertainty in the W3 13.75" radius aperture magnitude.
w3flg_4	dimensionless	smallint	2	[WISE] W3 13.75" radius aperture magnitude quality flag. This flag indicates if one or more image pixels in the measurement aperture for this band is confused with nearby objects, is contaminated by saturated or otherwise unusable pixels, or is an upper limit. The flag values are as described for the standard aperture photometry quality flag, w3flg.
w3mag_7	mag	float	8	[WISE] W3 22.0" radius aperture magnitude. This is the calibrated source brightness measured in a 22.0" radius circular aperture centered on the source position on the Atlas Image. If the source is not detected in the aperture measurement, this is the 95% confidence upper limit to the brightness. The background sky reference level is measured in an annular region with inner radius of 50" and outer radius of 70". No curve-of-growth correction has been applied.
w3sigm_7	mag	float	8	[WISE] Uncertainty in the W3 22.0" radius aperture magnitude.
w3flg_7	dimensionless	smallint	2	[WISE] W3 22.0" radius aperture magnitude quality flag. This flag indicates if one or more image pixels in the measurement aperture for this band is confused with nearby objects, is contaminated by saturated or otherwise unusable pixels, or is an upper limit. The flag values are as described for the standard aperture photometry quality flag, w3flg.
w4mpro	mag	float	8	[WISE] W4 magnitude measured with profile-fitting photometry, or the magnitude of the 95% confidence brightness upper limit if the W4 flux measurement has SNR<2. This column is null if the source is nominally detected in W4, but no useful brightness estimate could be made.
w4sigmpro	mag	float	8	[WISE] W4 profile-fit photometric measurement uncertainty in mag units. This column is null if the W4 profile-fit magnitude is a 95% confidence upper limit or if the source is not measurable.
w4rchi2	dimensionless	float	8	[WISE] Reduced -ç2 of the W4 profile-fit photometry measurement. This column is null if the W4 magnitude is a 95% confidence upper limit (i.e. the source is not detected).
w4sat	dimensionless	float	8	[WISE] Saturated pixel fraction, W4. The fraction of all pixels within the profile-fitting area in the stack of single-exposure images used to characterize this source that are flagged as saturated. A value larger than 0.0 indicates one or more pixels of saturation. Saturation begins to occur for point sources brighter than [W4]~0 mag. Saturation may occur in fainter sources because of a charged particle strike.
w4mag	mag	float	8	[WISE] W4 "standard" aperture magnitude. This is the curve-of-growth corrected source brightness measured in a 16.5" radius circular aperture centered on the source position on the Atlas Image. If the source is not detected in the aperture measurement, this is the 95% confidence upper limit to the brightness. The background sky reference level is measured in an annular region with inner radius of 50" and outer radius of 70". The curve-of-growth correction is given in w4mcor.
w4sigm	mag	float	8	[WISE] Uncertainty in the W4 "standard" aperture magnitude.
w4flg	dimensionless	smallint	2	[WISE] W4 "standard" aperture measurement quality flag. This flag indicates if one or more image pixels in the measurement aperture for this band is confused with nearby objects, is contaminated by saturated or otherwise unusable pixels, or is an upper limit. The flag value is an integer that is the combination of one or more of the following values that signify different conditions:
w4mag_1	mag	float	8	[WISE] W4 11.0" radius aperture magnitude. This is the calibrated source brightness measured in a 11.0" radius circular aperture centered on the source position on the Atlas Image. If the source is not detected in the aperture measurement, this is the 95% confidence upper limit to the brightness. The background sky reference level is measured in an annular region with inner radius of 50" and outer radius of 70". No curve-of-growth correction has been applied.
w4sigm_1	mag	float	8	[WISE] Uncertainty in the W4 11.0" radius aperture magnitude.
w4flg_1	dimensionless	smallint	2	[WISE] W4 11.0" radius aperture magnitude quality flag. This flag indicates if one or more image pixels in the measurement aperture for this band is confused with nearby objects, is contaminated by saturated or otherwise unusable pixels, or is an upper limit. The flag values are as described for the standard aperture photometry quality flag, w4flg.
w4mag_4	mag	float	8	[WISE] W4 27.5" radius aperture magnitude. This is the calibrated source brightness measured in a 27.5" radius circular aperture centered on the source position on the Atlas Image. If the source is not detected in the aperture measurement, this is the 95% confidence upper limit to the brightness. The background sky reference level is measured in an annular region with inner radius of 50" and outer radius of 70". No curve-of-growth correction has been applied.
w4sigm_4	mag	float	8	[WISE] Uncertainty in the W4 27.5" radius aperture magnitude.
w4flg_4	dimensionless	smallint	2	[WISE] W4 27.5" radius aperture magnitude quality flag. This flag indicates if one or more image pixels in the measurement aperture for this band is confused with nearby objects, is contaminated by saturated or otherwise unusable pixels, or is an upper limit. The flag values are as described for the standard aperture photometry quality flag, w4flg.
w4mag_7	mag	float	8	[WISE] W4 44.0" radius aperture magnitude. This is the calibrated source brightness measured in a 44.0" radius circular aperture centered on the source position on the Atlas Image. If the source is not detected in the aperture measurement, this is the 95% confidence upper limit to the brightness. The background sky reference level is measured in an annular region with inner radius of 50" and outer radius of 70". No curve-of-growth correction has been applied.
w4sigm_7	mag	float	8	[WISE] Uncertainty in the W4 44.0" radius aperture magnitude.
w4flg_7	dimensionless	smallint	2	[WISE] W4 44.0" radius aperture magnitude quality flag. This flag indicates if one or more image pixels in the measurement aperture for this band is confused with nearby objects, is contaminated by saturated or otherwise unusable pixels, or is an upper limit. The flag values are as described for the standard aperture photometry quality flag, w4flg.
gFPSFMag	mag	real	4	[PS1] Magnitude from mean PSF flux from forced single-epoch g-filter detections.
gFPSFMagErr	mag	real	4	[PS1] Error in magnitude from the mean PSF flux from forced single-epoch g-filter detections.
gFKronMag	mag	real	4	[PS1] Magnitude from thhe mean Kron (1980) flux from forced single-epoch g-filter detections.
gFKronMagErr	mag	real	4	[PS1] Error in magnitude from the mean Kron (1980) flux from forced single-epoch g-filter detections.
gFApMag	mag	real	4	[PS1] Magnitude from the mean aperture flux from forced single-epoch g-filter detections.
gFApMagErr	mag	real	4	[PS1] Error in magnitude from the mean aperture flux from forced single-epoch g-filter detections.
gFmeanMagR5	mag	real	4	[PS1] Magnitude from the mean flux from forced single-epoch g-filter detections within an aperture of radius r = 3 00.
gFmeanMagR5Err	mag	real	4	[PS1] Error in magnitude from the mean flux from forced single-epoch g-filter detections within an aperture of radius r = 3 00.
gFmeanMagR6	mag	real	4	[PS1] Magnitude from the mean flux from forced single-epoch g-filter detections within an aperture of radius r = 4 63.
gFmeanMagR6Err	mag	real	4	[PS1] Error in the magnitude from the mean flux from forced single-epoch g-filter detections within an aperture of radius r = 4 63.
gFmeanMagR7	mag	real	4	[PS1] Magnitude from the mean flux from forced single-epoch g-filter detections within an aperture of radius r = 7 43.
gFmeanMagR7Err	mag	real	4	[PS1] Error in the magnitude from the mean flux from forced single-epoch g-filter detections within an aperture of radius r = 7 43.
gnTotal	dimensionless	smallint	2	[PS1] Number of forced single-epoch detections in the g filter.
gnIncPSFFlux	dimensionless	smallint	2	[PS1] Number of forced single-epoch detections in the PSF flux mean in the g filter.
gnIncKronFlux	dimensionless	smallint	2	[PS1] Number of forced single-epoch detections in the Kron (1980) flux mean in the g filter.
gnIncApFlux	dimensionless	smallint	2	[PS1] Number of forced single-epoch detections in the aperture flux mean in the g filter.
gnIncR5	dimensionless	smallint	2	[PS1] Number of forced single-epoch detections in the R5 (r = 3 00) aperture flux mean in the g filter.
gnIncR6	dimensionless	smallint	2	[PS1] Number of forced single-epoch detections in the R6 (r = 4 63) aperture flux mean in the g filter.
gnIncR7	dimensionless	smallint	2	[PS1] Number of forced single-epoch detections in the R7 (r = 7 43) aperture flux mean in the g filter.
gFlags	dimensionless	int	4	[PS1] Information flag bitmask indicating details of the photometry from forced single-epoch g-filter detections. Values listed in ObjectInfoFlags.
gE1	dimensionless	real	4	[PS1] Kaiser et al. (1995) polarization parameter e1 = (Mxx GêÆ Myy)/(Mxx + Myy) from forced single-epoch g-filter detections.
gE2	dimensionless	real	4	[PS1] Kaiser et al. (1995) polarization parameter e2 = (2Mxy)/(Mxx + Myy) from forced single-epoch g-filter detections.
rFPSFMag	mag	real	4	[PS1] Magnitude from mean PSF flux from forced single-epoch r-filter detections.
rFPSFMagErr	mag	real	4	[PS1] Error in magnitude from the mean PSF flux from forced single-epoch r-filter detections.
rFKronMag	mag	real	4	[PS1] Magnitude from thhe mean Kron (1980) flux from forced single-epoch r-filter detections.
rFKronMagErr	mag	real	4	[PS1] Error in magnitude from the mean Kron (1980) flux from forced single-epoch r-filter detections.
rFApMag	mag	real	4	[PS1] Magnitude from the mean aperture flux from forced single-epoch r-filter detections.
rFApMagErr	mag	real	4	[PS1] Error in magnitude from the mean aperture flux from forced single-epoch r-filter detections.
rFmeanMagR5	mag	real	4	[PS1] Magnitude from the mean flux from forced single-epoch r-filter detections within an aperture of radius r = 3 00.
rFmeanMagR5Err	mag	real	4	[PS1] Error in magnitude from the mean flux from forced single-epoch r-filter detections within an aperture of radius r = 3 00.
rFmeanMagR6	mag	real	4	[PS1] Magnitude from the mean flux from forced single-epoch r-filter detections within an aperture of radius r = 4 63.
rFmeanMagR6Err	mag	real	4	[PS1] Error in the magnitude from the mean flux from forced single-epoch r-filter detections within an aperture of radius r = 4 63.
rFmeanMagR7	mag	real	4	[PS1] Magnitude from the mean flux from forced single-epoch r-filter detections within an aperture of radius r = 7 43.
rFmeanMagR7Err	mag	real	4	[PS1] Error in the magnitude from the mean flux from forced single-epoch r-filter detections within an aperture of radius r = 7 43.
rnTotal	dimensionless	smallint	2	[PS1] Number of forced single-epoch detections in the r filter.
rnIncPSFFlux	dimensionless	smallint	2	[PS1] Number of forced single-epoch detections in the PSF flux mean in the r filter.
rnIncKronFlux	dimensionless	smallint	2	[PS1] Number of forced single-epoch detections in the Kron (1980) flux mean in the r filter.
rnIncApFlux	dimensionless	smallint	2	[PS1] Number of forced single-epoch detections in the aperture flux mean in the r filter.
rnIncR5	dimensionless	smallint	2	[PS1] Number of forced single-epoch detections in the R5 (r = 3 00) aperture flux mean in the r filter.
rnIncR6	dimensionless	smallint	2	[PS1] Number of forced single-epoch detections in the R6 (r = 4 63) aperture flux mean in the r filter.
rnIncR7	dimensionless	smallint	2	[PS1] Number of forced single-epoch detections in the R7 (r = 7 43) aperture flux mean in the r filter.
rFlags	dimensionless	int	4	[PS1] Information flag bitmask indicating details of the photometry from forced single-epoch r-filter detections. Values listed in ObjectInfoFlags.
rE1	dimensionless	real	4	[PS1] Kaiser et al. (1995) polarization parameter e1 = (Mxx GêÆ Myy)/(Mxx + Myy) from forced single-epoch r-filter detections.
rE2	dimensionless	real	4	[PS1] Kaiser et al. (1995) polarization parameter e2 = (2Mxy)/(Mxx + Myy) from forced single-epoch r-filter detections.
iFPSFMag	mag	real	4	[PS1] Magnitude from mean PSF flux from forced single-epoch i-filter detections.
iFPSFMagErr	mag	real	4	[PS1] Error in magnitude from the mean PSF flux from forced single-epoch i-filter detections.
iFKronMag	mag	real	4	[PS1] Magnitude from thhe mean Kron (1980) flux from forced single-epoch i-filter detections.
iFKronMagErr	mag	real	4	[PS1] Error in magnitude from the mean Kron (1980) flux from forced single-epoch i-filter detections.
iFApMag	mag	real	4	[PS1] Magnitude from the mean aperture flux from forced single-epoch i-filter detections.
iFApMagErr	mag	real	4	[PS1] Error in magnitude from the mean aperture flux from forced single-epoch i-filter detections.
iFmeanMagR5	mag	real	4	[PS1] Magnitude from the mean flux from forced single-epoch i-filter detections within an aperture of radius r = 3 00.
iFmeanMagR5Err	mag	real	4	[PS1] Error in magnitude from the mean flux from forced single-epoch i-filter detections within an aperture of radius r = 3 00.
iFmeanMagR6	mag	real	4	[PS1] Magnitude from the mean flux from forced single-epoch i-filter detections within an aperture of radius r = 4 63.
iFmeanMagR6Err	mag	real	4	[PS1] Error in the magnitude from the mean flux from forced single-epoch i-filter detections within an aperture of radius r = 4 63.
iFmeanMagR7	mag	real	4	[PS1] Magnitude from the mean flux from forced single-epoch i-filter detections within an aperture of radius r = 7 43.
iFmeanMagR7Err	mag	real	4	[PS1] Error in the magnitude from the mean flux from forced single-epoch i-filter detections within an aperture of radius r = 7 43.
inTotal	dimensionless	smallint	2	[PS1] Number of forced single-epoch detections in the i filter.
inIncPSFFlux	dimensionless	smallint	2	[PS1] Number of forced single-epoch detections in the PSF flux mean in the i filter.
inIncKronFlux	dimensionless	smallint	2	[PS1] Number of forced single-epoch detections in the Kron (1980) flux mean in the i filter.
inIncApFlux	dimensionless	smallint	2	[PS1] Number of forced single-epoch detections in the aperture flux mean in the i filter.
inIncR5	dimensionless	smallint	2	[PS1] Number of forced single-epoch detections in the R5 (r = 3 00) aperture flux mean in the i filter.
inIncR6	dimensionless	smallint	2	[PS1] Number of forced single-epoch detections in the R6 (r = 4 63) aperture flux mean in the i filter.
inIncR7	dimensionless	smallint	2	[PS1] Number of forced single-epoch detections in the R7 (r = 7 43) aperture flux mean in the i filter.
iFlags	dimensionless	int	4	[PS1] Information flag bitmask indicating details of the photometry from forced single-epoch i-filter detections. Values listed in ObjectInfoFlags.
iE1	dimensionless	real	4	[PS1] Kaiser et al. (1995) polarization parameter e1 = (Mxx GêÆ Myy)/(Mxx + Myy) from forced single-epoch i-filter detections.
iE2	dimensionless	real	4	[PS1] Kaiser et al. (1995) polarization parameter e2 = (2Mxy)/(Mxx + Myy) from forced single-epoch i-filter detections.
zFPSFMag	mag	real	4	[PS1] Magnitude from mean PSF flux from forced single-epoch z-filter detections.
zFPSFMagErr	mag	real	4	[PS1] Error in magnitude from the mean PSF flux from forced single-epoch z-filter detections.
zFKronMag	mag	real	4	[PS1] Magnitude from thhe mean Kron (1980) flux from forced single-epoch z-filter detections.
zFKronMagErr	mag	real	4	[PS1] Error in magnitude from the mean Kron (1980) flux from forced single-epoch z-filter detections.
zFApMag	mag	real	4	[PS1] Magnitude from the mean aperture flux from forced single-epoch z-filter detections.
zFApMagErr	mag	real	4	[PS1] Error in magnitude from the mean aperture flux from forced single-epoch z-filter detections.
zFmeanMagR5	mag	real	4	[PS1] Magnitude from the mean flux from forced single-epoch z-filter detections within an aperture of radius r = 3 00.
zFmeanMagR5Err	mag	real	4	[PS1] Error in magnitude from the mean flux from forced single-epoch z-filter detections within an aperture of radius r = 3 00.
zFmeanMagR6	mag	real	4	[PS1] Magnitude from the mean flux from forced single-epoch z-filter detections within an aperture of radius r = 4 63.
zFmeanMagR6Err	mag	real	4	[PS1] Error in the magnitude from the mean flux from forced single-epoch z-filter detections within an aperture of radius r = 4 63.
zFmeanMagR7	mag	real	4	[PS1] Magnitude from the mean flux from forced single-epoch z-filter detections within an aperture of radius r = 7 43.
zFmeanMagR7Err	mag	real	4	[PS1] Error in the magnitude from the mean flux from forced single-epoch z-filter detections within an aperture of radius r = 7 43.
znTotal	dimensionless	smallint	2	[PS1] Number of forced single-epoch detections in the z filter.
znIncPSFFlux	dimensionless	smallint	2	[PS1] Number of forced single-epoch detections in the PSF flux mean in the z filter.
znIncKronFlux	dimensionless	smallint	2	[PS1] Number of forced single-epoch detections in the Kron (1980) flux mean in the z filter.
znIncApFlux	dimensionless	smallint	2	[PS1] Number of forced single-epoch detections in the aperture flux mean in the z filter.
znIncR5	dimensionless	smallint	2	[PS1] Number of forced single-epoch detections in the R5 (r = 3 00) aperture flux mean in the z filter.
znIncR6	dimensionless	smallint	2	[PS1] Number of forced single-epoch detections in the R6 (r = 4 63) aperture flux mean in the z filter.
znIncR7	dimensionless	smallint	2	[PS1] Number of forced single-epoch detections in the R7 (r = 7 43) aperture flux mean in the z filter.
zFlags	dimensionless	int	4	[PS1] Information flag bitmask indicating details of the photometry from forced single-epoch z-filter detections. Values listed in ObjectInfoFlags.
zE1	dimensionless	real	4	[PS1] Kaiser et al. (1995) polarization parameter e1 = (Mxx GêÆ Myy)/(Mxx + Myy) from forced single-epoch z-filter detections.
zE2	dimensionless	real	4	[PS1] Kaiser et al. (1995) polarization parameter e2 = (2Mxy)/(Mxx + Myy) from forced single-epoch z-filter detections.
yFPSFMag	mag	real	4	[PS1] Magnitude from mean PSF flux from forced single-epoch y-filter detections.
yFPSFMagErr	mag	real	4	[PS1] Error in magnitude from the mean PSF flux from forced single-epoch y-filter detections.
yFKronMag	mag	real	4	[PS1] Magnitude from thhe mean Kron (1980) flux from forced single-epoch y-filter detections.
yFKronMagErr	mag	real	4	[PS1] Error in magnitude from the mean Kron (1980) flux from forced single-epoch y-filter detections.
yFApMag	mag	real	4	[PS1] Magnitude from the mean aperture flux from forced single-epoch y-filter detections.
yFApMagErr	mag	real	4	[PS1] Error in magnitude from the mean aperture flux from forced single-epoch y-filter detections.
yFmeanMagR5	mag	real	4	[PS1] Magnitude from the mean flux from forced single-epoch y-filter detections within an aperture of radius r = 3 00.
yFmeanMagR5Err	mag	real	4	[PS1] Error in magnitude from the mean flux from forced single-epoch y-filter detections within an aperture of radius r = 3 00.
yFmeanMagR6	mag	real	4	[PS1] Magnitude from the mean flux from forced single-epoch y-filter detections within an aperture of radius r = 4 63.
yFmeanMagR6Err	mag	real	4	[PS1] Error in the magnitude from the mean flux from forced single-epoch y-filter detections within an aperture of radius r = 4 63.
yFmeanMagR7	mag	real	4	[PS1] Magnitude from the mean flux from forced single-epoch y-filter detections within an aperture of radius r = 7 43.
yFmeanMagR7Err	mag	real	4	[PS1] Error in the magnitude from the mean flux from forced single-epoch y-filter detections within an aperture of radius r = 7 43.
ynTotal	dimensionless	smallint	2	[PS1] Number of forced single-epoch detections in the y filter.
ynIncPSFFlux	dimensionless	smallint	2	[PS1] Number of forced single-epoch detections in the PSF flux mean in the y filter.
ynIncKronFlux	dimensionless	smallint	2	[PS1] Number of forced single-epoch detections in the Kron (1980) flux mean in the y filter.
ynIncApFlux	dimensionless	smallint	2	[PS1] Number of forced single-epoch detections in the aperture flux mean in the y filter.
ynIncR5	dimensionless	smallint	2	[PS1] Number of forced single-epoch detections in the R5 (r = 3 00) aperture flux mean in the y filter.
ynIncR6	dimensionless	smallint	2	[PS1] Number of forced single-epoch detections in the R6 (r = 4 63) aperture flux mean in the y filter.
ynIncR7	dimensionless	smallint	2	[PS1] Number of forced single-epoch detections in the R7 (r = 7 43) aperture flux mean in the y filter.
yFlags	dimensionless	int	4	[PS1] Information flag bitmask indicating details of the photometry from forced single-epoch y-filter detections. Values listed in ObjectInfoFlags.
yE1	dimensionless	real	4	[PS1] Kaiser et al. (1995) polarization parameter e1 = (Mxx GêÆ Myy)/(Mxx + Myy) from forced single-epoch y-filter detections.
yE2	dimensionless	real	4	[PS1] Kaiser et al. (1995) polarization parameter e2 = (2Mxy)/(Mxx + Myy) from forced single-epoch y-filter detections.
EBV_Planck	mag	float	8	Planck dust map E(B-V) value at the PS1 coordinates from Planck Collaboration et al., 2014, A&A, 571, A11.
EBV_PS1	mag	float	8	PS1 dust map E(B-V) value at the PS1 coordinates from Schlafly et al., 2014, ApJ, 789, 15.
class	dimensionless	varchar	8	The class assigned to the source, using the fiducial decision boundary b=0.65 (see Sect. 4.1 of B22). Can take the following values: "GALAXY", "STAR", "QSO" or "UNSURE".
prob_Galaxy	dimensionless	float	8	The probability-like neural network output for the galaxy class. Corresponds to the P_{class} general notation in the text. Refer to Sect. 4.1 of B22 for more details.
prob_Star	dimensionless	float	8	The probability-like neural network output for the star class. Corresponds to the P_{class} general notation in the text. Refer to Sect. 4.1 of B22 for more details.
prob_QSO	dimensionless	float	8	The probability-like neural network output for the quasar class. Corresponds to the P_{class} general notation in the text. Refer to Sect. 4.1 of B22 for more details.
extrapolation_Class	dimensionless	int	4	The extrapolation flag for the classification, 0 if non-extrapolated, 1 if extrapolated. Definition: d_{SOM} > 4.233 (see Sect. 3.4 of B22).
cellDistance_Class	dimensionless	float	8	The distance to the nearest SOM cell centre in the classification SOM. Denoted d_{SOM} in the text (see Sect. 3.4 of B22).
cellID_Class	dimensionless	int	4	The identifier of the nearest SOM cell in the classification SOM (see Sect. 3.4 of B22).
z_phot	dimensionless	float	8	The Monte-Carlo photometric redshift estimate z_{phot}. Slightly less accurate than z_{phot,0}. Refer to Sect. 3.5 and 4.2 of B22 for more details.
z_photErr	dimensionless	float	8	The calibrated redshift error estimate \tilde{\Delta z}_{phot} = 1.986 \Delta z_{phot}. Refer to Sect. 3.5 and 4.2 of B22 for more details.
z_phot0	dimensionless	float	8	The base photometric redshift estimate z_{phot,0}. Refer to Sect. 3.5 and 4.2 of B22 for more details.
extrapolation_Photoz	dimensionless	int	4	The extrapolation flag for the photo-z estimation, 0 if non-extrapolated, 1 if extrapolated. Definition: d_{SOM} > 3.702 (see Sect. 3.4 of B22).
cellDistance_Photoz	dimensionless	float	8	The distance to the nearest SOM cell centre in the photo-z SOM. Denoted d_{SOM} in the text (see Sect. 3.4 of B22).
cellID_Photoz	dimensionless	int	4	The identifier of the nearest SOM cell in the photo-z SOM (see Sect. 3.4 of B22).

Data Access

WISE-PS1-STRM is available in MAST CasJobs for SQL queries, or can be downloaded as .csv.gz files based on strips of declination. There are two tables available in CasJobs: "catalogRecordRowStore" which is optimized for row extraction queries (queries where you want to retrieve a subset of the data) and "catalogRecordColumnStore" which is optimized for count() queries and should not be used for extracting subsets of the data. These tables can be found in the HLSP_WISE_PS1_STRM Context.

MAST CasJobs

A web-based SQL interface to query and cross-match between catalogs. Export tables, saved queries, long query submissions.

MAST CasJobs

NOTE: Each file in the table below is a few GB in size (~0.5-15 GB, depending on declination strip).

File	Min. Declination	Max. Declination
hlsp_wise-ps1-strm_ps1-wise_multi_m35-m30_multi_v1_cat.csv.gz	-35	-30
hlsp_wise-ps1-strm_ps1-wise_multi_m30-m25_multi_v1_cat.csv.gz	-30	-25
hlsp_wise-ps1-strm_ps1-wise_multi_m25-m20_multi_v1_cat.csv.gz	-25	-20
hlsp_wise-ps1-strm_ps1-wise_multi_m20-m15_multi_v1_cat.csv.gz	-20	-15
hlsp_wise-ps1-strm_ps1-wise_multi_m15-m10_multi_v1_cat.csv.gz	-15	-10
hlsp_wise-ps1-strm_ps1-wise_multi_m10-m05_multi_v1_cat.csv.gz	-10	-05
hlsp_wise-ps1-strm_ps1-wise_multi_m05-p00_multi_v1_cat.csv.gz	-05	+00
hlsp_wise-ps1-strm_ps1-wise_multi_p00-p05_multi_v1_cat.csv.gz	+00	+05
hlsp_wise-ps1-strm_ps1-wise_multi_p05-p10_multi_v1_cat.csv.gz	+05	+10
hlsp_wise-ps1-strm_ps1-wise_multi_p10-p15_multi_v1_cat.csv.gz	+10	+15
hlsp_wise-ps1-strm_ps1-wise_multi_p15-p20_multi_v1_cat.csv.gz	+15	+20
hlsp_wise-ps1-strm_ps1-wise_multi_p20-p25_multi_v1_cat.csv.gz	+20	+25
hlsp_wise-ps1-strm_ps1-wise_multi_p25-p30_multi_v1_cat.csv.gz	+25	+30
hlsp_wise-ps1-strm_ps1-wise_multi_p30-p35_multi_v1_cat.csv.gz	+30	+35
hlsp_wise-ps1-strm_ps1-wise_multi_p35-p40_multi_v1_cat.csv.gz	+35	+40
hlsp_wise-ps1-strm_ps1-wise_multi_p40-p45_multi_v1_cat.csv.gz	+40	+45
hlsp_wise-ps1-strm_ps1-wise_multi_p45-p50_multi_v1_cat.csv.gz	+45	+50
hlsp_wise-ps1-strm_ps1-wise_multi_p50-p55_multi_v1_cat.csv.gz	+50	+55
hlsp_wise-ps1-strm_ps1-wise_multi_p55-p60_multi_v1_cat.csv.gz	+55	+60
hlsp_wise-ps1-strm_ps1-wise_multi_p60-p65_multi_v1_cat.csv.gz	+60	+65
hlsp_wise-ps1-strm_ps1-wise_multi_p65-p70_multi_v1_cat.csv.gz	+65	+70
hlsp_wise-ps1-strm_ps1-wise_multi_p70-p75_multi_v1_cat.csv.gz	+70	+75
hlsp_wise-ps1-strm_ps1-wise_multi_p75-p80_multi_v1_cat.csv.gz	+75	+80
hlsp_wise-ps1-strm_ps1-wise_multi_p80-p85_multi_v1_cat.csv.gz	+80	+85
hlsp_wise-ps1-strm_ps1-wise_multi_p85-p90_multi_v1_cat.csv.gz	+85	+90

Citations

Please remember to cite the appropriate paper(s) below and the DOI if you use these data in a published work.

Note: These HLSP data products are licensed for use under CC BY 4.0.