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J/A+AS/105/385        Radio observations of Coma cluster I (Kim+ 1994)
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Radio observations of the Coma cluster of galaxies and its intermediate
vicinity. I. Radio data and optical identifications
     Kim K.-T., Kronberg P.P., Dewdney P.E., Landecker T.L.
    <Astron. Astrophys. Suppl. Ser. 105, 385 (1994)>
    =1994A&AS..105..385K
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Keywords: galaxies: clustering - Coma cluster - galaxies: intergalactic medium -
          galaxies: magnetic fields - radio continuum: galaxies

Abstract:
    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.

File Summary:
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 FileName    Lrecl    Records    Explanations
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ReadMe          80          .    This file
table8         146         58    Optical identification
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See also:
    J/A+AS/105/403 :  (II)


Byte-by-byte Description of file: table8
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   Bytes Format  Units   Label    Explanations
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   2-  3  I2     h       RAh      []? Right ascension 1950 (radio position)
   5-  6  I2     min     RAm      []? Right ascension 1950 (radio position)
   8- 12  F5.2   s       RAs      []? Right ascension 1950 (radio position)
  14- 17  F4.2   s       e_RAs    rms uncertainty on RA
  19- 20  I2     deg     DE       []? Declination 1950 (radio position)
  22- 23  I2     arcmin  DEm      []? Declination 1950 (radio position)
  25- 28  F4.1   arcsec  DEs      []? Declination 1950 (radio position)
  30- 32  F3.1   arcsec  e_DEs    rms uncertainty on DE
  34- 43  A10    ---     5C       5C denomination
  45- 55  A11    ---     Name1    Usual name
  57- 61  F5.1   mJy     F1       []? Flux density at 1 GHz
  62- 63  A2     ---     n_F1     Note on flux density (1)
  65- 68  F4.1   mJy     e_F1     rms uncertainty on flux density
  70- 74  F5.2   ---     SI       []? Spectral index
      75  A1     ---     n_SI     Note on spectral index (1)
  77- 80  F4.2   ---     e_SI     []? rms uncertainty on spectral index
      81  A1     ---     n_e_F1   Note on rms uncertainty of spectral index (1)
  83- 86  F4.1   arcsec  Maj      []? Size (major axis)
  89- 92  F4.1   arcsec  Min      []? Size (minor axis)
  94- 96  I3     deg     PA       []? Position angle
      99  A1     ---     Flag2    When *, the following values concerns the
                                            second optical identification
 101-105  F5.1   arcsec  DRA      []? Radio-optical position difference in alpha
 107-111  F5.1   arcsec  DDE      []? Radio-optical position difference in delta
 113-115  A3     ---     IC       Identification quality
 118-125  A8     ---     Name2    Optical name
 127-130  A4     ---     Type     Galaxy type
 133-136  F4.1   mag     Mv       []? Photographic magnitude
     137  A1     ---     n_Mv     Note on photographic magnitude (1)
 139-143  I5     km/s    V        []? Velocity
 145-146  A2     ---     Ref      References (2)
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Note (1): W  = WSRT 610 MHz (Valentijn et al. 1977),
          +  = VLA 1380 MHz,
          ++ = VLA 1630 MHz,
          *  = DRAO 1420MHz,
          e  = estimated
Note (2): *  = Jaffe, et al. (1976),
          KG = Kent & Gunn (1982),
          GP = Godwin & Peach (1977)
          TT = Tift & Tarenchi (1977)
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(End)                                           Patricia Bauer [CDS] 18-Feb-1994