Mission Overview
Panchromatic Hubble Andromeda Treasury: Triangulum Extended Region ("PHATTER")
Primary Investigator: Julianne Dalcanton
HLSP Authors: Meredith Durbin, Benjamin Williams
Released: 2021-03-15
Updated: 2021-03-15
Primary Reference(s): Williams et al. 2021
Citations: See ADS Statistics
Overview
The team provides UV-optical-NIR photometry for 22 million stars in the central ~0.1 deg^2 of M33 for the Panchromatic Hubble Andromeda Treasury: Triangulum Extended Region ("PHATTER") survey. They use the filters F275W and F336W on the WFC3/UVIS camera, F475W and F814W on ACS/WFC, and the F110W and F160W on WFC3/IR. UVIS data reach a magnitude limit of ~25 in F275W and F336W. ACS data reach maximum depths of ~28 magnitudes in F475W and ~27 magnitudes in F814W in the uncrowded outer disk. In these same regions, WFC3/IR data reach maximum depths of ~26.5 and ~25.5 in F110W and F160W, respectively. However, the depths are crowding limited in the optical and NIR, and thus is a strong function of radius. As a result, photometry in the inner bulge fields is far shallower. The source catalogs and image mosaics from which the sources are extracted are provided by the team. The team also provides the WCS solutions for each subsection's reference image.
Data Products
The mosaic files have the following naming convention:
hlsp_phatter_hst_<ins>_m33_<filter>_v1_drz.fits
where:
- <ins> = Name of the instrument used, either "acs-wfc", "wfc3-uvis", or "wfc3-ir".
- <filter> = Name of filter used, one of "f475w", "f814w", "f160w", "f275w", "f336w".
The catalog files have the following naming convention:
hlsp_phatter_hst_wfc3-uvis-acs-wfc-wfc3-ir_m33-<subset>_f275w-f336w-f475w-f814w-f110w-f160w_v1_phot.fits
where:
- <subset> = name of the imaging subset, examples: "b01-ne", "b02-ss", or "b03-nw".
The WCS files have the following naming convention:
hlsp_phatter_hst_acs-wfc_m33-<subset>_f475w_v1_wcs.fits
where:
- <subset> = name of the imaging subset, examples: "b01-ne", "b02-ss", or "b03-nw".
Data file types:
| _drz.fits | Full-frame drizzled mosaics of the entire survey for a given filter. |
| _phot.fits | Full-stack 6-band photometry tables for each subsection of the survey. |
| _wcs.fits | WCS information for each photometry subsection's reference image. |
Data Access
DRZ Mosaics
Catalog and WCS Files
| b01-ne: PHOT | WCS | b01-nn: PHOT | WCS | b01-nw: PHOT | WCS |
| b01-se: PHOT | WCS | b01-ss: PHOT | WCS | b01-sw: PHOT | WCS |
| b02-ne: PHOT | WCS | b02-nn: PHOT | WCS | b02-nw: PHOT | WCS |
| b02-se: PHOT | WCS | b02-ss: PHOT | WCS | b02-sw: PHOT | WCS |
| b03-ne: PHOT | WCS | b03-nn: PHOT | WCS | b03-nw: PHOT | WCS |
| b03-se: PHOT | WCS | b03-ss: PHOT | WCS | b03-sw: PHOT | WCS |