CVARO Field Descriptions

You may submit queries using any of the fields listed below. The "Column label" is the name displayed on the search forms and in search results. The "Column name" is the actual column name in the table and needs to be specified in GET requests. (See the MAST Services web page for information on submitting GET requests.) If the "Column name" is in italics, it means the table is indexed on that field and queries with that field will run faster. Clicking on "Data Type" entries will display information on search options.

When using the "user-specified field" form element on a MAST search form, simply select the column "label" in the forms pulldown menu and type in the qualification in the adjacent box. If you specify constraints on the same column in more than one form element, they will all be included in the query and you may not get results you expect. Note the entries in the table below may be sorted by clicking on the column headings.

Catalog Description of CVUV Table
Last Update:

Column Name	Column Label	Description	Examples/Valid Values	Data Type
Column Name	Column Label	Description	Examples/Valid Values	Data Type
cv_target	Target Name	Target name: Name of the system as it was entered in the MAST database when the original observations were carried out. For most of the systems it is the name defined for the variable as given in the Ritter and Kolb Catalog of CVs. For less common objects, it is the name given in the Downes et al. Catalog of CVs.	Examples: VW Hyi, V1040 Cen, V Sge	string
cv_ra_d	RA (J2000)	Right Ascension (J2000)	Range: 0 to 360 deg	ra
cv_dec_d	Dec (J2000)	Declination (J2000)	Range: -90 to +90 deg	dec
cv_type	Type	Type of Cataclysmic Variable. We define four types.	Examples: DN: Dwarf Nova NL: Nova-Like Mg: Magnetic Systems Msc: Miscellaneous variables	string
cv_subtype	Subtype	Subtype: The objects are further divided into subtypes.	Examples: DN Subtype: UG - U Gem Z - Z Cam SS - SS Cyg WZ - WZ Sge SU - SU UMa NL Subtype: VY - VY Scl (anti-DN) UX - UX UMa SW - SW Sex Mg Subtype: IP - Intermediate Polar (with a moderately strong magnetic field; distrupted inner disk) P - Polar (with a strong magnetic field; devoided of disk) DQ - DQ Her AM - AM Her Msc Sub Type: N - Nova (all types of Novae) CV - all other types/subtype of Cataclysmic Variables	ustring
cv_p	P(hr)	Period of the binary (if known) given in hour	Example: 4.47	float
cv_i	i(deg)	The inclination i of the system (if known) given in degrees. It is also the inclination used in the modeling of the synthetic disk spectrum to fit the observed spectrum	Range: 0 to 90 Example: 15	integer
cv_ebv	E(B-V)	Reddening (extinction) toward the object. The spectrum was dereddened assuming this value prior to the spectral fit.	Example: 0.07	float
cv_mwdmsun	Mwd/Msun	Mass of the WD of the system given in units of solar mass. Mass is usually taken from the literature and is left blank if unknown.	Range: 0-1.29; Example: 0.86	float
cv_t	Twd(K)	This is the effective surface temperature of the WD (in Kelvin) used to generate the stellar atmosphere model to fit to the observed spectrum.	Range: 1000K to 100,000K; Example: 22000 (no coma)	integer
cv_vrot	Rotv (km/s)	Projected rotational velocity of the WD (km/sec) used to generate the line broadening of the stellar atmosphere model in the fit to the observed spectrum.	Range: 0 and a few 1000km/sec; Example: 200	integer
cv_csign	C	Carbon	0.25	string
cv_c	C	Carbon	0.25 solar	float
cv_sisign	Si	Silicon	Example: 1.8 solar	string
cv_si	Si	Silicon	Example: 1.8 solar	float
cv_ssign	S	Sulfur	Example: 10.0 solar	string
cv_s	S	Sulfur	Example: 10.0 Solar	float
cv_nsign	N	Nitrogen	Example: 3.0 solar	string
cv_n	N	Nitrogen	Example: 3.0 solar	float
cv_abundances	Abundances		Solar, Non-Solar, N/C > 10	istring
cv_d	d(pc)	Distance to the object in parsec and/or it is the distance used in the spectral modeling to fit the observed spectrum	Example: 212 parsecs	float
cv_dataid	Data ID	Uniquely identifies a dataset.;	vwhyi, ektra	lstring