J/AJ/138/1261 Spitzer/MIPS observations of the COSMOS field (Frayer+, 2009)
Spitzer 70 and 160 µm observations of the COSMOS field. Frayer D.T., Sanders D.B., Surace J.A., Aussel H., Salvato M., Le Floc'h E., Huynh M.T., Scoville N.Z., Afonso-Luis A., Bhattacharya B., Capak P., Fadda D., Fu H., Helou G., Ilbert O., Kartaltepe J.S., Koekemoer A.M., Lee N., Murphy E., Sargent M.T., Schinnerer E., Sheth K., Shopbell P.L., Shupe D.L., Yan L. <Astron. J., 138, 1261-1270 (2009)> =2009AJ....138.1261F
ADC_Keywords: Photometry, infrared ; Surveys Keywords: galaxies: evolution - galaxies: starburst - infrared: galaxies Abstract: We present Spitzer 70 and 160um observations of the COSMOS Spitzer survey (S-COSMOS). The data processing techniques are discussed for the publicly released products consisting of images and source catalogs. We present accurate 70 and 160um source counts of the COSMOS field and find reasonable agreement with measurements in other fields and with model predictions. The previously reported counts for GOODS-North and the extragalactic First Look Survey are updated with the latest calibration, and counts are measured based on the large area SWIRE survey to constrain the bright source counts. We measure an extragalactic confusion noise level of σc=9.4±3.3mJy (q=5) for the MIPS 160um band based on the deep S-COSMOS data and report an updated confusion noise level of σc=0.35±0.15mJy (q=5) for the MIPS 70um band. Description: The MIPS S-COSMOS observations were carried out in four campaigns from 2006 January to 2008 January (during Cycle-2, in 2006 Jan 6-9 (AOR 21); Cycle-3a in 2007 Jan 1-13 (AOR 70); Cycle-3b in 2007 May 18-28 (AOR 61) and Cycle-3c in 2008 Jan 6-7 (AOR 5)). The project (Spitzer programs 20070 and 30143) represents over 450hr of MIPS observations. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table3.dat 70 1512 Spitzer COSMOS 70 micron catalog table4.dat 74 499 Spitzer COSMOS 160 micron catalog
See also: II/284 : COSMOS Multi-Wavelength Photometry Catalog (Capak+, 2007) J/ApJ/680/939 : Optical spectra of 24um galaxies in COSMOS. I. (Caputi+, 2008) J/ApJS/172/46 : VLA-COSMOS survey. II. (Schinnerer+, 2007) J/ApJS/172/29 : XMM-Newton survey in COSMOS field. I. (Hasinger+, 2007) J/AJ/131/250 : Spitzer 70 and 160um observations in xFLS (Frayer+, 2006) http://irsa.ipac.caltech.edu/data/SPITZER/S-COSMOS/ : NASA S-COSMOS archive Byte-by-byte Description of file: table3.dat
Bytes Format Units Label Explanations
1- 9 A9 --- --- [SCOSMOS70] 11- 26 A16 --- SCOSMOS70 Source Name (JHHMMSS.s+DDMMSS) 28- 37 F10.6 deg RAdeg Right Ascension in decimal degrees (J2000) 39- 46 F8.6 deg DEdeg Declination in decimal degrees (J2000) 48- 50 F3.1 arcsec e_pos The 2σ radial positional error 52- 56 F5.1 mJy S70 Total Spitzer/MIPS 70 micron band flux density 58- 62 F5.1 mJy e_S70 The 1sigma error on S70 (1) 64- 67 F4.1 --- SNR Signal-to-Noise Ratio of the source peak 69- 70 A2 --- Flag [ap ] Measurement method flag (2)
Note (1): Including calibration uncertainty. Note (2): Flag as follows: p = Point-source Response Function (PRF); a = aperture measurement with a diameter of 96 arcsec; ap = aperture measurement whose whose flux was divided between two components based on the strengths of their peaks.
Byte-by-byte Description of file: table4.dat
Bytes Format Units Label Explanations
1- 10 A10 --- --- [SCOSMOS160] 12- 27 A16 --- SCOSMOS160 Source Name (JHHMMSS.s+DDMMSS) 29- 38 F10.6 deg RAdeg Right Ascension in decimal degrees (J2000) 40- 47 F8.6 deg DEdeg Declination in decimal degrees (J2000) 49- 52 F4.1 arcsec e_pos The 2σ radial positional error 54- 60 F7.1 mJy S160 Total Spitzer/MIPS 160 micron band flux density 62- 67 F6.1 mJy e_S160 The 1sigma error on S160 (1) 69- 72 F4.1 --- SNR Signal-to-Noise Ratio of the source peak 74 A1 --- Flag [ap] Measurement method flag (2)
Note (1): Including calibration uncertainty. Note (2): Flag as follows: p = Point-source Response Function (PRF); a = aperture measurement with a diameter of 4 arcmin.
History: From electronic version of the journal
(End) Greg Schwarz [AAS], Emmanuelle Perret [CDS] 23-Jan-2012
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