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J/AJ/136/259    Second GALEX UV variability catalog (GUVV-2)   (Wheatley+, 2008)

The second GALEX ultraviolet variability (GUVV-2) catalog. Wheatley J.M., Welsh B.Y., Browne S.E. <Astron. J., 136, 259-266 (2008)> =2008AJ....136..259W
ADC_Keywords: Stars, variable; Ultraviolet; Photometry Keywords: galaxies: active - stars: variables: other - ultraviolet: general Abstract: We present the second Galaxy Evolution Explorer (GALEX) Ultraviolet Variability (GUVV-2) Catalog, which contains information on 410 newly discovered time-variable sources gained through simultaneous near UV (NUV 1750-2750Å) and far-UV (FUV 1350-1750Å) photometric observations. Source variability was determined by comparing the NUV and/or FUV fluxes derived from orbital exposures recorded during a series of multiple observational visits to 169 GALEX fields on the sky. Description: We have used the GALEX FUV and NUV-band photometric data catalogs compiled during the period 2003 June-2006 June, which reside in the Multi-Misison Archive at the Space Telescope Science Institute (MAST). Only the GALEX fields observed on ten or more occasions (and with exposures of more than 200s) were included in our present analysis. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 48 169 GALEX fields analyzed for variability table2.dat 153 410 The GALEX ultraviolet variability catalog
See also: J/AJ/130/825 : GALEX ultraviolet variability catalog (Welsh+, 2005) J/ApJS/173/185 : GALEX ultraviolet atlas of nearby galaxies (Gil de Paz+, 2007) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 26 A26 --- Field Field name 28- 30 A3 --- Survey GALEX survey (1) 32- 34 I3 --- Nvis Number of visits 36- 41 F6.2 deg RAdeg Right Ascension in decimal degrees (J2000) 43- 48 F6.2 deg DEdeg Declination in decimal degrees (J2000)
Note (1): GALEX surveys as follows: DIS = Deep Imaging Survey GII = Guest Investigator observations NGS = Nearby Galaxy Survey
Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 18 A18 --- GUVV GALEX identification (JHHMMSS.s+DDMMSS.s) 20- 38 A19 --- OName SDSS or USNO-B1 identification (1) 40- 70 A31 --- SIMBAD Simbad identification 72- 74 A3 --- Type Source type (PQ = Possible Quasar) 76-101 A26 --- Field GALEX field 103-104 I2 --- o_NUVmag Number of NUV (177-300nm) detections 106-110 F5.2 mag NUVmag Maximum GALEX/NUV band magnitude 112-115 F4.2 mag NUVamp Amplitude of NUV band observations 117-118 I2 --- o_FUVmag Number of FUV (120-177nm) detections 120-124 F5.2 mag FUVmag ? Maximum GALEX/FUV band magnitude 126-129 F4.2 mag FUVamp ? Amplitude of FUV band observations 131-135 F5.2 mag Bmag ? USNO-B1/SDSS B/g band magnitude 137 A1 --- f_Bmag [i] Magnitude from USNO-B1 139-143 F5.2 mag Rmag ? USNO-B1/SDSS R/r band magnitude 145 A1 --- f_Rmag [i] Magnitude from USNO-B1 147-151 F5.2 mag Imag ? USNO-B1/SDSS I/i band magnitude 153 A1 --- f_Imag [i] Magnitude from USNO-B1
Note (1): USNO-B1 sources have a format of HHMM±DDMMSSs while SDSS sources have a format of JHHMMSS.SS±DDMMSS.S.
History: From electronic version of the journal
(End) Greg Schwarz [AAS], Patricia Vannier [CDS] 26-Jan-2011
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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