J/ApJ/533/611 1.4GHz survey in HDF region (Richards+, 2000) ================================================================================ The nature of radio emission from distant galaxies: the 1.4 GHz observations. Richards E.A. =2000ApJ...533..611R ================================================================================ ADC_Keywords: Galaxies, radio ; Surveys Keywords: cosmology: observations - galaxies: active - galaxies: evolution - galaxies: starburst - radio continuum: galaxies - surveys Abstract: We have conducted a deep radio survey with the Very Large Array at 1.4GHz of a region containing the Hubble Deep Field (HDF). This survey overlaps previous observations at 8.5GHz allowing us to investigate the radio spectral properties of microJansky sources to flux densities greater than 40{mu}Jy at 1.4GHz and greater than 8{mu}Jy at 8.5GHz. A total of 371 sources have been catalogued at 1.4GHz as part of a complete sample within 20 of the HDF. File Summary: -------------------------------------------------------------------------------- FileName Lrecl Records Explanations -------------------------------------------------------------------------------- ReadMe 80 . This file table2.dat 66 371 Complete 1.4GHz Source List table5.dat 54 75 Spectral indices for HDF radio sample -------------------------------------------------------------------------------- Byte-by-byte Description of file: table2.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 2 I2 h RAh Right ascension (J2000.0) (1) 4- 5 I2 min RAm Right ascension (J2000.0) 7- 12 F6.3 s RAs Right ascension (J2000.0) 14- 18 F5.3 s e_RAs rms uncertainty on RA 20 A1 --- DE- Declination sign (J2000.0) 21- 22 I2 deg DEd Declination (J2000.0) 24- 25 I2 arcmin DEm Declination (J2000.0) 27- 31 F5.2 arcsec DEs Declination (J2000.0) 33- 36 F4.2 arcsec e_DEs rms uncertainty on DE 38 A1 --- l_theta Limit flag on theta 39- 42 F4.1 arcsec theta ? Deconvolved (FWHM) major axis of the best Gaussian fit to the source 44- 49 F6.1 --- S/N Signal-to-noise ratio of the detection (2) 51- 58 F8.1 uJy S1.4GHz Integrated sky flux density at 1.4GHz 60- 66 F7.1 uJy e_S1.4GHz ? rms uncertainty on S1.4GHz -------------------------------------------------------------------------------- Note (1): Object identified as [R2000] JHHMMSS.sss+DDMMSS.ss in Simbad Note (2): S/N calculated from S_p_/{sigma}, where S_p_ is the peak flux density as measured in either the 2", 3.5" or 6" image and {sigma} equals the rms noise in that image. -------------------------------------------------------------------------------- Byte-by-byte Description of file: table5.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 3 A3 --- --- [VLA] 5- 18 A14 --- [R2000] VLA designation ([R2000] VLA JHHMMSS+DDMMSS in Simbad) 20 A1 --- l_S8.5GHz Limit flag on S8.5GHz 21- 26 F6.1 uJy S8.5GHz Integrated sky flux density at 8.5GHz 28 A1 --- l_S1.4GHz Limit flag on S1.4GHz 29- 34 F6.1 uJy S1.4GHz Integrated sky flux density at 1.4GHz 36 A1 --- l_alpha Limit flag on alpha 37- 41 F5.2 --- alpha Spectral index 43- 46 F4.2 --- e_alpha ? rms uncertainty on alpha 48 A1 --- l_theta Limit flag on theta 49- 52 F4.2 arcsec theta ? Angular size 53- 54 A2 --- Sample [hl ] Sample (h: 8.5GHz, l: 1.4GHz) -------------------------------------------------------------------------------- History: From ApJ electronic version ================================================================================ (End) James Marcout, Patricia Bauer [CDS] 31-Aug-2000