J/ApJ/517/148 ISO observations of the CFRS field (Flores+, 1999) ================================================================================ 15 micron Infrared Space Observatory observations of the 1415+52 Canada-France redshift survey field: the cosmic star formation rate as derived from deep ultraviolet, optical, mid-infrared, and radio photometry Flores H., Hammer F., Thuan T.X., Cesarsky C., Desert F.X., Omont A., Lilly S .J., Eales S., Crampton D., Le Fevre O. =1999ApJ...517..148F (SIMBAD/NED BibCode) ================================================================================ ADC_Keywords: Galaxies, IR ; Photometry Mission_Name: ISO Keywords: galaxies: photometry - galaxies: starburst - galaxies: stellar content - infrared: galaxies Abstract: The Canada-France Redshift Survey 1452+52 field has been deeply imaged with the Infrared Space Observatory using ISOCAM through the LW3 filter (1218 {mu}m). Careful data analysis and comparison with deep optical and radio data have allowed us to generate a catalog of 78 15 {mu}m sources with both radio and optical identifications. They are redder and lie at higher redshift than I-band-selected galaxies, with most of them being star-forming galaxies. We have considered the galaxies detected at radio and 15 {mu}m wavelengths, which potentially include all strong and heavily extincted starbursts, up to z=1. Spectral energy distributions (SEDs) for each of the sources have been derived using deep radio, mid-IR, near-IR, optical, and UV photometry. The sources were then spectrally classified by comparing with SEDs of well-known nearby galaxies. By deriving their far-IR luminosities by interpolation, we can estimate their star formation rate (SFR) in a way that does not depend sensitively on the extinction. File Summary: -------------------------------------------------------------------------------- FileName Lrecl Records Explanations -------------------------------------------------------------------------------- ReadMe 80 . This file table1.dat 124 85 Optical counterparts of ISOCAM LW3 sources -------------------------------------------------------------------------------- See also: J/ApJ/481/49 : CFRS XIV. Field galaxies up to z=1 (Hammer+ 1997) Byte-by-byte Description of file: table1.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 10 A10 --- Catalog Catalog object was obtained from (1) 14- 16 I3 --- ISOName Name in the ISO catalog of Flores et al. (1999A&A...343..389) 19 A1 --- n_ISOName [g] Note on ISOName (2) 23- 24 I2 h RAh Right Ascension (J2000) 26- 27 I2 min RAm Right Ascension (J2000) 29- 32 F4.1 s RAs Right Ascension (J2000) 33 A1 --- DE- Declination sign (J2000) 34- 35 I2 deg DEd Declination (J2000) 37- 38 I2 arcmin DEm Declination (J2000) 40- 43 F4.1 arcsec DEs Declination (J2000) 46- 52 F7.4 --- CFRS ? Canada-France Redshift Survey number 54 A1 --- n_z Indicates that a redshift of 0.7217 was given by Lilly+ (1995). 56 A1 --- f_ISOName [s] Indicates object is a star 61- 65 F5.3 --- z ? Redshift 70- 74 F5.2 mag Imag ? I band isophotal magnitude in the AB system 79- 83 F5.2 mag Vmag ? V band isophotal magnitude in the AB system 90- 94 F5.2 mag Kmag ? K band isophotal magnitude in the AB system 99-103 F5.2 arcsec Dist ? Distance between ISO source and optical or radio counterpart 105-113 F9.7 --- Prob Associated probability of coincidence of sources 115 A1 --- f_Prob Indicates radio source with probability based on radio-source counts 118-121 I4 uJy Flux Flux density at 12-18 {mu}m within and 9'' aperture 123-124 I2 uJy e_Flux Uncertainty in Flux -------------------------------------------------------------------------------- Note (1): Catalog 1 = Objects with S/N > 4, Probability < 0.02 Catalog 2 = Objects with S/N > 4, P(d,I) > 0.02 Catalog 3 = Objects with S/N > 4, without optical counterpart in I_AB_ Catalog 4 = Objects with 4 > S/N > 3, Probability < 0.02 Catalog 5 = Objects with 4 > S/N > 3, Probability > 0.02 Catalog 6 = Objects with 4 > S/N > 3, without optical counterpart in I_AB_ Note (2): Hammer et al. (1995MNRAS.276.1085H) and Fomalont et al. (1991AJ....102.1258F) comment that the fainter source (I_AB_ {~} 23.9) galaxy, which is 2'' away, should be the optical counterpart. Unfortunately, no spectrum of the fainter galaxy is available. -------------------------------------------------------------------------------- History: From the ApJ electronic edition References: Flores, H. Hammer, F. Desert, F. X. Cesarsky, C. Thuan, T. Crampton, D. Eales, S. Le Fevre, O. Lilly, S. J. Omont, A. Elbaz, D. 1999, A & A, 343, 389 (1999A&A...343..389) Fomalont, E. B., Windhorst, R. A., Kristian, J. A., & Kellerman, K. I. 1991, AJ, 102, 1258 (1991AJ....102.1258F) Hammer, F., Crampton, D., Lilly, S., Le Fèvre, O., & Kenet, T. 1995, MNRAS, 276, 1085 (1995MNRAS.276.1085H) Lilly, S. J., Hammer, F., Le Fèvre, O., & Crampton, D. 1995b, ApJ, 455, 75(1995ApJ...455...75L) ================================================================================ (End) Greg Schwarz [AAS] 07-Mar-2000