J/AJ/125/2411 SIRTF First-Look Survey (Condon+, 2003)
The SIRTF first-look survey. I. VLA image and source catalog.
Condon J.J., Cotton W.D., Yin Q.F., Shupe D.L., Storrie-Lombardi L.J.,
Helou G., Soifer B.T., Werner M.W.
<Astron. J. 125, 2411 (2003)>
=2003AJ....125.2411C 2003AJ....125.2411C (SIMBAD/NED BibCode)
ADC_Keywords: Radio sources ; Galaxies, radio ; Surveys
Mission_Name: Spitzer
Keywords: catalogs - galaxies: active - galaxies: starburst -
infrared radiation - radio continuum - surveys
Abstract:
The First-Look Survey (FLS) of the Space Infrared Telescope Facility
(SIRTF) will cover about 5deg2 centered on J2000.0 (17:18+59:30) in
order to characterize the extragalactic infrared sky 2 orders of
magnitude deeper than the IRAS survey. We expect that most of the FLS
far-infrared (λ = 160, 70, and 24 µm) sources will be
star-forming galaxies obeying the very tight far-infrared/radio
correlation and will be continuum radio sources with flux densities
S≳100µJy at ν=1.4GHz. Conversely, radio sources stronger than
100µJy are usually powered by star-forming galaxies, plus some
active galactic nuclei, and most should be detectable by the SIRTF
FLS. Thus, a sensitive radio survey can be used to select and identify
most of the SIRTF FLS source population before launch. We used the
B configuration of the VLA to make an image of the FLS area at
ν=1.4GHz with σ≃23µJy/beam rms fluctuations, θ=5''
resolution, and σα≃σδ≃0.5'' rms
uncertainties in right ascension and declination. The resulting radio
image and catalog of 3565 radio components with peak flux densities
Sp≥5σ=115µJy/beam have been released via the Web to expedite
follow-up optical identification and spectroscopy.
Mission:
SIRTIF mission has been renamed Spitzer.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 105 3565 Component Catalog
table2.dat 42 105 Multicomponent Sources Catalog
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See also:
http://sirtf.caltech.edu/SSC/fls/ : the First Look Survey (FLS)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 2 I2 h RAh Hour of right ascension (J2000)
4- 5 I2 min RAm Minute of right ascension (J2000)
7- 12 F6.3 s RAs Second of right ascension (J2000)
14- 18 F5.3 s e_RAs RMS uncertainty in RAs (J2000)
20 A1 --- DE- Sign of the declination (J2000)
21- 22 I2 deg DEd Degrees of declination (J2000)
24- 25 I2 arcmin DEm Arcminute of declination (J2000)
27- 31 F5.2 arcsec DEs Arcsecond of declination (J2000)
33- 36 F4.2 arcsec e_DEs RMS uncertainty in DEs (J2000)
38- 44 F7.3 mJy Flux Integrated 1.4GHz flux density
46- 50 F5.3 mJy e_Flux RMS uncertainty in Flux
52 A1 --- l_MajAxis Upper limit symbol for MajAxis
54- 57 F4.1 arcsec MajAxis Deconvolved source FWHM major axis
59- 61 F3.1 arcsec e_MajAxis ? RMS uncertainty in MajAxis
64 A1 --- l_MinAxis Upper limit symbol for MinAxis
66- 69 F4.1 arcsec MinAxis Deconvolved source FWHM minor axis
71- 73 F3.1 arcsec e_MinAxis ? RMS uncertainty in MinAxis
75- 79 F5.1 deg PosAng ? Major-axis position angle (east of north)
81- 84 F4.1 deg e_PosAng ? RMS uncertainty in PosAng
86- 92 F7.2 pix Xpix X-axis pixel location of source on image
94-100 F7.2 pix Ypix Y-axis pixel location of source on image
102-105 A4 --- Group Group label for multicomponent sources
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 4 A4 --- Group Component group number
6- 7 I2 --- Ncomp Number of components in group
9- 10 I2 h RAh Hour of right ascension (J2000)
12- 13 I2 min RAm Minute of right ascension (J2000)
15- 19 F5.2 s RAs Second of right ascension (J2000)
21 A1 --- DE- Sign of the declination (J2000)
22- 23 I2 deg DEd Degrees of declination (J2000)
25- 26 I2 arcmin DEm Arcminute of declination (J2000)
28- 31 F4.1 arcsec DEs Arcsecond of declination (J2000)
33- 38 F6.2 mJy Flux Integrated 1.4GHz flux density
40- 42 A3 --- Fig Figure number for contour plot
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(End) Greg Schwarz [AAS] 19-Aug-2003