J/A+AS/105/385 J/A+AS/105/385 I. Radio data and optical identifications K -T Kim P P Kronberg P E Dewdney T L Landecker Astron. Astrophys. Suppl. Ser. 105 385 1994 1994A&AS..105..385K galaxies: clusters: general galaxies: clusters: individual (Coma cluster) galaxies: magnetic fields intergalactic medium radio continuum: galaxies Continuum radio surveys of a region containing the Coma cluster of galaxies have been made at eight different frequencies with the DRAO and VLA synthesis telescopes. These surveys detected 482 sources above 30 mJy at 408 MHz within a circular region of diameter about 9.7deg and 298 sources in the frequency range 1.3-1.7 GHz within a circular region of diameter 3.1deg. The completeness level of the surveys is 10 mJy at 1.4 GHz for sources located within a 65' radius from the phase centre. 17 new rotation measures were obtained for sources in the field of the Coma cluster. Of 107 sources detected at 1380 MHz with the VLA within 30' radius of its phase centre, 33 sources (31%) are optically identified with galaxies. The number of yet unidentified cluster sources expected from the survey is estimated to be about 20. With the redshift data currently available, only 29 Coma cluster radio galaxies have been identified.

RAh Right ascension 1950 (radio position) h RAm Right ascension 1950 (radio position) min RAs Right ascension 1950 (radio position) s e_RA rms uncertainty on RA s DE Declination 1950 (radio position) deg DEm Declination 1950 (radio position) arcmin DEs Declination 1950 (radio position) arcsec e_DE rms uncertainty on DE arcsec 5C 5C denomination --- Name1 Usual name --- F1 Flux density at 1 GHz mJy n_F1 Note on flux density number=1 W = WSRT 610 MHz (Valentijn et al. 1977), + = VLA 1380 MHz, ++ = VLA 1630 MHz, * = DRAO 1420MHz, e = estimated --- e_F1 rms uncertainty on flux density mJy SI Spectral index --- n_SI Note on spectral index number=1 W = WSRT 610 MHz (Valentijn et al. 1977), + = VLA 1380 MHz, ++ = VLA 1630 MHz, * = DRAO 1420MHz, e = estimated --- e_SI rms uncertainty on spectral index --- n_e_F1 Note on rms uncertainty of spectral index number=1 W = WSRT 610 MHz (Valentijn et al. 1977), + = VLA 1380 MHz, ++ = VLA 1630 MHz, * = DRAO 1420MHz, e = estimated --- Maj Size (major axis) arcsec Min Size (minor axis) arcsec PA Position angle deg n_id When *, the following values concerns the second optical identification --- DRA Radio-optical position difference in alpha arcsec DDE Radio-optical position difference in delta arcsec IC Identification quality --- Name2 Optical name --- Type Galaxy type --- Mv Photographic magnitude mag n_Mv Note on photographic magnitude number=1 W = WSRT 610 MHz (Valentijn et al. 1977), + = VLA 1380 MHz, ++ = VLA 1630 MHz, * = DRAO 1420MHz, e = estimated --- V Velocity km/s Ref References number=2 * = Jaffe, et al. (1976), KG = Kent & Gunn (1982), GP = Godwin & Peach (1977) TT = Tift & Tarenchi (1977) --- Patricia Bauer CDS 1994Feb18 J_A+AS_105_385.xml