ACDS V10.0 - Detailed Description of J/ApJS/129/547

ACDS V10.0 - Wed Jan 15 19:48:22 CET 2025

| # Detailed Description of J/ApJS/129/547 : RBSC-NVSS sample. I. (Bauer+, 2000) |

Note : this is the description file of the original catalog. This HTML page corresponds well to the original description, but some minor changes in the format may have been introduced in the FITS output files in order to allow for arithmetic operations on quantities such as coordinates and times. h:m:s and d:m:s units are normally converted into degrees, and YYYY-MM-DD into julian days.
Similarly, some slight changes may have been introduced in the units; the value given in the HTML files supersedes the value indicated in the ReadMe file for this catalogue.

    J/ApJS/129/547      RBSC-NVSS sample. I.                     (Bauer+, 2000)
    ================================================================================
    RBSC-NVSS sample. I. Radio and optical identifications of a complete sample
    of 1556 bright X-ray sources.
         Bauer F.E., Condon J.J., Thuan T.X., Broderick J.J.
        <Astrophys. J. Suppl. Ser. 129, 547 (2000)>
        =2000ApJS..129..547B
    ================================================================================
    ADC_Keywords: Radio sources ; Surveys ; Cross identifications

    Keywords: catalogs - radio continuum: general - surveys - X-rays: general

    Abstract:
        We cross-identified the ROSAT Bright Source Catalog (RBSC, Cat.
        IX/10) and the NRAO VLA Sky Survey (NVSS, Cat. VIII/65) to
        construct the RBSC-NVSS sample of the brightest X-ray sources (>=0.1
        counts/s~10-12erg/cm2/s in the 0.1-2.4keV band) that are also
        radio sources (S>=2.5mJy at 1.4GHz) in the 7.8sr of extragalactic sky
        with |b|>15° and {delta}>-40°. The sky density of NVSS sources
        is low enough that they can be reliably identified with RBSC sources
        having rms positional uncertainties >=10". We used the more accurate
        radio positions to make reliable X-ray/radio/optical identifications
        down to the POSS plate limits. We obtained optical spectra for many of
        the bright identifications lacking published redshifts. The resulting
        X-ray/radio sample is unique in its size (1557 objects), composition
        (a mixture of nearly normal galaxies, Seyfert galaxies, quasars, and
        clusters), and low average redshift [<z>~0.1]

    File Summary:

           FileName      Lrecl  Records   Explanations

    ×                   80        .   This file
    × ReadMe            80        .   This file
    × table1.dat       102       48   RBSC Galactic Identifications
    × table2.dat       140     1699   RBSC-NVSS Extragalactic Identifications
    × notes.dat         80      308   Individual notes

    See also:
         IX/10   : ROSAT All-Sky Bright Source Catalogue (1RXS) (Voges+ 1999)
         VIII/65 : 1.4GHz NRAO VLA Sky Survey (NVSS) (Condon+ 1998)

    Byte-by-byte Description of file:  table1.dat

       Bytes Format Units   Label    Explanations

       1- 16  A16   ---     1RXS     RBSC (Cat. IX/10) 1RXS object name
          17  A1    ---     n_1RXS   [N] indicates a note detailed in file notes.dat
      18- 30  A13   ---     Name     Common name found in Simbad (2000)
      32- 39  E8.2  mW/m2   Sx       ? RBSC X-ray flux
      41- 42  I2    h       RAh      Right ascension J2000
      44- 45  I2    min     RAm      Right ascension J2000
      47- 51  F5.2  s       RAs      Right ascension J2000
          53  A1    ---     DE-      Declination sign J2000
      54- 55  I2    deg     DEd      Declination J2000
      57- 58  I2    arcmin  DEm      Declination J2000
      60- 63  F4.1  arcsec  DEs      Declination J2000
          64  A1    ---     n_Pos    [O] O: optical position given (1)
      66- 73  F8.1  mJy     S1.4GHz  ? Flux density at 1.4GHz
          74  A1    ---   n_S1.4GHz  [E] E: extended radio emission
      76- 79  F4.2  %       IDprob   [0/1]? Identification probability P(R,V)
      81- 83  A3    ---     Type     Simbad object type (2)
      85- 88  F4.1  mag     Bmag     ? Simbad B magnitude
          89  A1    ---     u_Bmag   [)] Uncertainty flag on Bmag
      91-102  A12   ---     SpType   Simbad spectral type

    Note (1): Optical position given, because identification is more than 3{sigma}
         from radio position or there are multiple optical candidates
    Note (2): Simbad object type:
          * : Star
         *Al: Eclipsing binary of Algol type
         *bL: Eclipsing binary of Beta Lyr type
         *Cl: Star or globular cluster
         *DQ: Cataclysmic variable of DQ Her type
         *Fl: Flare star
         *Mi: Variable star of Mira Cet type
         *Pu: Pulsating variable star
         *Ro: Rotationally variable star
         *RS: Star of RS CVn type
         *sr: Semiregular pulsating star
         *TT: T Tau-type star
         *V : Variable star
         PN : Planetary nebula

    Byte-by-byte Description of file:  table2.dat

       Bytes Format Units   Label    Explanations

       1- 16  A16   ---     1RXS     RBSC (Cat. IX/10) 1RXS object name
          17  A1    ---     n_1RXS   [N] indicates a note detailed in file notes.dat
      19- 41  A23   ---     Name     Common name found in NED (2000)
      43- 50  E8.2  mW/m2   Sx       ? RBSC X-ray flux
      53- 54  I2    h       RAh      Right ascension J2000
      56- 57  I2    min     RAm      Right ascension J2000
      59- 63  F5.2  s       RAs      Right ascension J2000
          65  A1    ---     DE-      Declination sign J2000
      66- 67  I2    deg     DEd      Declination J2000
      69- 70  I2    arcmin  DEm      Declination J2000
      72- 75  F4.1  arcsec  DEs      Declination J2000
          76  A1    ---     OPos     [O] Optical Position ? (1)
          77  A1    ---     RadM     [R] Radio remeasured ? (2)
          78  A1    ---     FIRST    [F] FIRST used ? (3)
      80- 86  F7.1  mJy     S1.4GHz  NVSS/FIRST 1.4GHz flux density
          87  A1    ---     RadExt   [ESDTA] Radio Extended ? (4)
      90- 93  F4.2  ---     IDProb   [0/1]? ID Probability (5)
      96- 99  F4.1  mag     Bmag     ? B magnitude from NED (2000) or USNO-A2 cat.
         100  A1    ---     r_Bmag   [*] '*' indicates a magnitude from USNO-A2
                                      (Cat. I/252).
     103-108  F6.4  ---     z        ? Redshift
         109  A1    ---     u_z      [?] '?': redshift uncertain
         110  I1    ---     r_z      [1,3]? Source of redshift (6)
     112-129  A18   ---     MType    Morphology from NED (2000)
     130-140  A11   ---     SpType   Spectral classification;
                                      a '?' indicates uncertainty

    Note (1): If value = 'O', then optical position is listed instead of
        radio because identification was more than 3{sigma} from radio
        position or there were multiple optical candidates
    Note (2): If value = 'R', then NVSS position and/or flux density were remeasured

    Note (3): If value = 'F', then high resolution position and flux density were
        taken from the FIRST 1.4GHz survey (White et al., 1997, Cat.  VIII/59).
    Note (4): Radio emission:
        E: radio emission is extended
        S: radio emission is extended and resolved into a central point source
            and single lobe - we give the central point source position and
            total emission
        D: radio emission is extended and resolved into two lobes - we give
            the centroid position and total emission;
        T: radio emission is extended and resolved into three components - we
            give the central source position and total emission
        A: radio emission is likely to be indirectly linked to X-ray emission
            - an "association"Note (5): Probability that identification of X-ray/radio/optical source is
    Note (5): Probability that identification of X-ray/radio/optical source is
         correct; blank indicates that other factors were taken into account
         when identifying this object
    Note (6): Source of redshift:
         ' ': redshift and spectral classification are from NED (2000);
         '1': redshift and spectral classification are from us (KPNO 2.1m 1997-1999)
         '2': redshift and spectral classification are from Schwope et al.
              (2000AN....321....1S, see Cat. IX/32)
         '2': redshift and spectral classification are from Brinkmann et al.
              (2000, Cat. J/A+A/356/445)

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

       Bytes Format Units   Label     Explanations

       1- 16  A16   ---     1RXS      RBSC 1RXS object name
      18- 80  A63   ---     Note      Text of the note

    History:
        From ApJS electronic version
      * 23-Dec-2000, CDS: the original table2 missed 5 "N" flags indicating
        notes (for 1RXS sources J114452.7+194706, J142139.7+371743,
        J212706.7-120927, J232519.4-120741, J234741.2-280829), and contained
        one spurious "N" flag (for source J142136.4+493305).
      * 30-Jan-2002: following a note by F. Bauer (fbauer@goo.astro.psu.edu)
        about a missing reference in table2, the description of table2.dat
        and its contents were replaced by a revised version.
    ================================================================================
    (End)                   Greg Schwarz [AAS],  Patricia Bauer [CDS]    13-Nov-2000