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J/A+AS/128/153      Revised GB/GB2 sample of radio sources (Machalski 1998)
The revised GB/GB2 sample of extragalactic radio sources
       Machalski J.
      <Astron. Astrophys. Suppl. Ser. 128, 153 (1998)>
      =1998A&AS..128..153M      (SIMBAD/NED BibCode)
ADC_Keywords: Radio sources ; Redshifts ; QSOs

Keywords: surveys - quasars: general - galaxies: active -
          radio continuum: general; galaxies

Abstract:
    The revised sample of 373 extragalactic radio sources brighter than
    0.2 Jy at 1.4GHz is presented. These sources, selected from the
    finding Green Bank surveys, were mapped at 1465 MHz using the VLA at
    different configurations. The biases introduced into the original
    GB (Maslowski, 1972AcA....22..227M) and
    GB2 (Machalski, 1978AcA....28..367M) catalogues by confusion as well
    as partial resolution by the VLA at its A-configuration, are
    eliminated. In effect, a number of sources have been excluded, and a
    few other are included into the revised sample. Now the sample is
    about 99, 97 and 95 per cent complete for sources with S1.4≥0.55Jy,
    0.25Jy≤S1.4<0.55Jy, and 0.2Jy≤S1.4<0.25Jy, respectively.
    Table 3 gives the compilation of the radio, optical, and X-ray
    data available for the sample sources.

File Summary:

       FileName      Lrecl  Records   Explanations

ReadMe            80        .   This file
table3.dat       200      373   Radio, optical and X-ray data for 373 sources
notes.dat         80      178   Individual notes to table3.dat
table3a.tex      108      512   LaTex version of the left part of table3.dat
table3b.tex      121      515   LaTex version of the right part of table3.dat
notes.tex         86      257   LaTeX version of the notes.dat file


See also:
          VIII/25 : 6C Survey of radio sources - VI. (Hales+ 1993)
          VIII/42 : Texas Survey of radio sources at 365MHz (Douglas+ 1996)
          VIII/36 : The Second Bologna Survey (Colla+ 1970-74)
          VIII/17 : THE 1.4GHz NORTHERN SKY CATALOG
    J/ApJS/75/801 : MGIV (Fourth MIT-Green Bank) 5GHz Survey (Griffith+ 1991)
          VIII/40 : GB6 catalog of radio sources (Gregory+ 1996)


Byte-by-byte Description of file: table3.dat

   Bytes Format Units  Label      Explanations

   1-  9  A9    ---    IAU        IAU-format source name, based on 1950 position
      11  A1    ---    Cat1       [*nc?r] Presence in 151 MHz: 6CII, III, VI (1)
      12  A1    ---    Cat2       [*nc?r] Presence in 178 MHz:4C (1)
      13  A1    ---    Cat3       [*nc?r] Presence in 365-MHz: Texas (1)
      14  A1    ---    Cat4       [*nc?r] Presence in 408 MHz: B2(1)
      15  A1    ---    Cat5       [*nc?r] Presence in B3 (1)
      16  A1    ---    Cat6       [*nc?r] Presence in 750 and 1400 MHz: NRAO (1)
      17  A1    ---    Cat7       [*nc?r] Presence in 966 MHz: Jodrell Bank (1)
      18  A1    ---    Cat8       [*nc?r] Presence in 1400 MHz: 83GB (1)
      19  A1    ---    Cat9       [*nc?r] Presence in 4830 MHz: MGII, MGIV (1)
      20  A1    ---    Cat10      [*nc?r] Presence in 4850 MHz: GB6 (1)
  22- 24  A3    ---    Part       [123, ] Subsamples (2)
  25- 29  I5    mJy    S1.4GHz    ? Weighted mean 1.4-GHz flux density
  31- 33  I3    mJy    e_S1.4GHz  ? rms uncertainty on S1.4GHz
      34  A1    ---    n_S1.4GHz  Value in []
  36- 38  I3    mJy   sigS1.4GHz  ? Standard deviation of variable flux
  40- 44  F5.2  ---    SI         Slope of the fitted spectrum at 1.4 GHz (3)
  46- 48  F3.2  ---    e_SI       ? rms uncertainty on SI
      49  A1    ---    u_SI       [)] See Note (3)
  50- 53  A4    ---    radType    Type of radio spectrum
  55- 60  A6    ---    radMorph   Radio morphology (4)
      61  A1    ---    l_LAS      Limit flag on LAS
  62- 67  F6.1  arcsec LAS        ? Largest angular size
      68  A1    ---    u_LAS      [?] ?: Unknown value
  69- 82  A14   ---    map        Code concerning the VLA maps available (5)
  84- 89  A6    ---    optType    Optical type (6)
  91- 96  F6.4  ---    z          ? Redshift
      97  A1    ---    u_z        [)] ): Redshift estimated from the apparent
                                          magnitude and colour
      99  A1    ---    l_Rmag     Limit flag on R magnitude
 100-104  F5.2  mag    Rmag       ? R magnitude (7)
     105  A1    ---    n_Rmag     [v] v: variable
     107  A1    ---    l_Bmag     Limit flag on Bmag
 108-112  F5.2  mag    Bmag       ? B magnitude (7)
     113  A1    ---    n_Bmag     [v] v: variable
     114  A1    ---    n_Pos      [o] o: optical object position (8)
 115-116  I2    h      RAh        Right ascension (J2000)
 118-119  I2    min    RAm        Right ascension (J2000)
 121-125  F5.2  s      RAs        Right ascension (J2000)
     127  A1    ---    DE-        Declination sign
 128-129  I2    deg    DEd        Declination (J2000)
 131-132  I2    arcmin DEm        Declination (J2000)
 134-137  F4.1  arcsec DEs        Declination (J2000)
 139-152  A14   ---    Ref1       References to large-scale radio structure
                                   and VLA maps (9)
 154-164  A11   ---    Ref2       References to VLBI- scale structure (9)
 166-172  A7    ---    Ref3       References to photometry  (9)
 174-178  A5    ---    Ref4       References to redshift (9)
 180-184  A5    ---    Ref5       References to X-ray data (9)
     185  A1    ---    Note       [+] + : note detailed in file notes.dat

Note (1): *: presence
          n: absence
          c: flux contaminated by confusing source or sources
          r: source resolved, flux underestimated
       Cat1: 151 MHz: 6CII, III, VI (Hales et al., 1993MNRAS.263...25H,
              Cat. VIII/25 and references therein)
       Cat2: 178 MHz:4C (Pilkington & Scott 1965MmRAS..69..183P;
                         Gower et al. 1967MmRAS..71...49G)
       Cat3: 365-MHz: Texas (Douglas et al. 1980PAUTx..17....1D, Cat. VIII/42)
       Cat4: 408 MHz: B2 (Colla et al., 1973A&AS...11..291C, Cat. VIII/36
       Cat5: B3 (Ficarra et al. 1985A&AS...59..255F, Cat. VIII/37)
       Cat6: 750 and 1400 MHz: NRAO (Pauliny-Toth et al. 1966ApJS...13...65P)
       Cat7: 966 MHz: Jodrell Bank (Cohen et al. 1977MmRAS..84....1C;
              Porcas et al. 1980MNRAS.191..607P),
       Cat8: 1400 MHz: 83GB (Condon & Broderick 1985AJ.....90.2540C,
              White & Becker 1992ApJS...79..331W, Cat. VIII/17)
       Cat9: 4830 MHz: MGII, MGIV (Langston et al. 1990ApJS...72..621L,
              Griffith et al. 1991, Cat. J/ApJS/75/801 respectively)
       Cat10: 4850 MHz: GB6 (Gregory et al. 1996ApJS..103..427G, Cat. VIII/40)
Note (2): 1: the source belongs to Subsample 1 complete to S≥0.55Jy
              in the sky area of 0.4414 sr
          2: the source belongs to Subsample 2 complete with 0.25Jy≤S<0.55Jy
               in the sky area of 0.0906 sr
          3: the source belongs to Subsample 3 complete with 0.20Jy≤S<0.25Jy
               in the area of 0.0550 sr
          1,2: denotes sources with S≥0.25 Jy in the area of 0.0906 sr
          2,3: denotes sources with 0.20Jy≤S<0.55Jy in the area of 0.0550 sr
Note (3): The slope is the derivative of a function y=a+bx+cx2 or
           y=a+bx+dexp(±x).
          If no function could be fitted to the spectral data (generally for
           variable sources), a crude slope at 1.4 GHz is given
           followed by u_SI=')'
Note (4):  FRI: edge-darkened double
          FRII: edge-brightened double
            C: compact, unresolved with the VLA
        C(1s): core-dominated compact with one-sided extended emission
        C(2s): core-dominated compact with two-sided extended emission
           cc: appended to the type denotes that a compact core has been
                detected
          CSS: compact steep-spectrum
           Di: diffuse emission
Note (5): Code concerning the VLA maps available.
          '1.4' and sometimes '4.9' indicate observing frequency, and
         ABCP: VLA configuration used for observations
                 ('P' means partially completed VLA in 1980).
            * denotes that no map is available, and the source is represented
               by fitted Gaussian components only.
              If the VLBI-scale structure has been observed in a compact source,
               this is indicated
Note (6): Optical type.
          GAL : galaxy confirmed spectroscopically and/or with an extended image
        (GAL) : possibly a galaxy
         GAL? : identification ambiguous
          QSO : quasar confirmed spectroscopically
           BL : BL Lac object
          RSO : red stellar object
          NSO : neutral stellar object (most of them are quasar candidates)
          BSO : blue stellar object (most of them are quasar candidates)
           RO : red object too faint to be recognized as stellar or extended.
           BO : blue object too faint to be recognized as stellar or extended.
           EF : 'empty field' source, an identification likely beyond the
                  POSS limit.
          'X' preceding the type indicates that an X-ray source coincides with
               the radio position
Note (7): Two decimal digits precision indicate magnitudes measured with
           photoelectric or CCD photometry
Note (8): For double source without a radio core, the given position
           corresponds to a radio centroid
Note (9): References to VLA maps
           1 Antonucci (1985ApJS...59..499A)
           2 Burns et al. (1983ApJ...271..575B)
           3 Capetti et al. (1993A&AS...99..407C)
           4 Condon (1983ApJS...53..459C)
           5 Condon & Broderick (1988AJ.....96...30C)
           6 de Ruiter et al. (1986A&AS...65..111D)
           7 Fanti et al. (1986A&AS...65..145F)
           8 Fanti et al. (1987A&AS...69...57F)
           9 Ford et al. (1985ApJ...293..132F)
          10 Gioia & Fabbiano (1987ApJS...63..771G)
          11 Hummel et al. (1985A&AS...60..293H)
          12 Leahy & Perley (1991AJ....102..537L)
          13 Lonsdale et al. (1993ApJS...87...63L)
          14 Machalski et al. (1982AJ.....87.1150M), Paper II
          15 Machalski & Condon (1983AJ.....88..143M), Paper III
          16 Machalski & Condon (1983AJ.....88.1591M), Paper IV
          17 Machalski & Condon (1985AJ.....90....5M), Paper V
          18 Machalski & Condon (1985AJ.....90..973M)
          19 Machalski & Condon (1986AJ.....91..998M)
          20 Maslowski & Kellermann (1988AJ.....95.1659M)
          21 O'Donoghue et al. (1993ApJ...408..428O)
          22 Owen & Puschell (1984AJ.....89..932O)
          23 Parma et al. (1986A&AS...64..135P)
          24 Perley et al. (1980AJ.....85..649P)
          25 Perley (1982AJ.....87..859P)
          26 Perley et al. (1982ApJ...255L..93P)
          27 Reid et al. (1995A&AS..110..213R)
          28 Vallee et al. (1981ApJ...250...66V)
          29 Vallee & Wilson (1976Natur.259..451V)
          30 van Albada & van der Hulst (1982A&A...115..263V)
          31 Vigotti et al. (1989A&AS...36..237W)
          32 4885-MHz map in Figure A1. (Appendix)
     References to VLBI maps.
          40 Henstock et al. (1995, Cat. J/ApJS/100/1)
          41 Morabito et al. (1986AJ.....91.1038M)
          42 Pearson & Readhead (1988ApJ...328..114P)
          43 Polatidis et al. (1995, Cat. J/ApJS/98/1)
          44 Thakkar et al. (1995, Cat. J/ApJS/98/33)
          45 Xu et al. (1995, Cat. J/ApJS/99/297)
          46 Rioja et al. (1996, Proc. IAU Symp. No.175, p.122)
          47 Fey et al. (1996ApJS..105..299F)
     References to photometry
          50 Allington-Smith et al. (1982MNRAS.201..331A)
          51 Laing et al. (1983MNRAS.204..151L)
          52 Machalski & Wisniewski (1988MNRAS.231.1065M)
          53 Machalski (1992AcA....42..335M)
          54 Machalski & Magdziarz (1993A&AS..102..315M)
          57 Sandage (1972ApJ...176...21S) of Pointed Observations
          55 Machalski & LaFranca (1988IAUC.4573.....M)
          56 Moles et al. (1985A&A...152..271M)
          58 Veron-Cetty & Veron (1993, see Cat. VII/188)
          59 Netzer et al. (1996MNRAS.279..429N)
          591 Hook et al. (1996MNRAS.282.1274H)
     References to redshift
          60 Allington-Smith et al. (1988MNRAS.234.1091A)
          61 Burbidge (1970ApJ...160L..33B)
          62 Burbidge & Strittmatter (1972ApJ...172L..37B)
          63 Djorgovski et al. (1990PASP..102..113D)
          64 Grueff et al. (1980A&A....86...50G)
          65 Grueff & Vigotti (1979A&AS...35..371G)
          66 Henstock (1995, priv. info.)
          67 Hewitt & Burbidge (1993ApJS...87..451H, Cat. VII/158)
          68 Huchra et al. (1983ApJS...52...89H, Cat. VII/193)
          69 Katgert-Merkelijn et al. (1980A&AS...40...91K)
          70 Laing et al. (1983MNRAS.204..151L)
          71 Lilly et al. (1985MNRAS.215...37L)
          72 Machalski (1991AcA....41...39M)
          73 Machalski & Engels (1994MNRAS.266L..69M)
          74 Morganti et al. (1992MNRAS.254..546M)
          75 Owen et al. (1988AJ.....95....1O)
          76 Sandage et al. (1976ApJ...205..688S)
          77 Sargent (1973ApJ...182L..13S)
          78 Smith & Spinrad (1980PASP...92..553S)
          79 Spinrad (1982PASP...94..397S)
          80 Spinrad & Djorgovski (1984ApJ...285L..49S)
          81 Spinrad et al. (1985ApJ...299L...7S)
          82 Stickel & Kuehr (1994, Cat. J/A+AS/105/67)
          83 Strittmatter et al. (1974ApJ...190..509S)
          84 Strom et al. (1990A&A...227...19S)
          85 Veron-Cetty & Veron (1993, see Cat. VII/188)
          86 Vigotti et al. (1989AJ.....98..419V)
          87 Walsh et al. (1979MNRAS.189..667W)
          88 Warner et al. (1983MNRAS.204.1279W)
          89 Wilkinson et al. (1981MNRAS.196..669W)
          90 Zwicky & Herzog (1963, See Cat. VII/4)
          91 LaHulla et al. (1991A&AS...88..525L)
          92 Vermeulen et al. (1996AJ....111.1013V)
          93 Sanghera et al. (1995A&A...295..629S)
          94 Maxfield et al. (1995PASP..107..369M)
     References to X-ray data
          X1 Crawford & Fabian (1996MNRAS.282.1483C)
          X2 ROSAT Catalogue (See e.g. Cat. IX/11)
          X3 Worrall & Wilkes (1990ApJ...360..396W)
          X4 Wilkes et al. 1994, Cat. J/ApJS/92/53
          X5 Machalski & Brandt (1996MNRAS.282.1305M)


Byte-by-byte Description of file: notes.dat

   Bytes Format Units   Label     Explanations

   1-  9  A9    ---     IAU       IAU name
      11  I1    ---     Ntot      Total number of lines for the reference
      13  I1    ---     Nline     Running line number in range [1,Ntot]
  15- 80  A66   ---     Com       Comments


Acknowledgements:  Jerzy Machalski 

(End)                                         Patricia Bauer [CDS]   03-Jul-1997