ACDS V10.0 - Detailed Description of J/A+AS/143/391

ACDS V10.0 - Wed Dec 18 01:40:02 CET 2024

| # Detailed Description of J/A+AS/143/391 : ROSAT HRI catalogue of LMC X-ray sources (Sasaki+, 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/A+AS/143/391      ROSAT HRI catalogue of LMC X-ray sources    (Sasaki+, 2000)
    ================================================================================
    ROSAT HRI catalogue of X-ray sources in the LMC region
        Sasaki M., Haberl F., Pietsch W.
       <Astron. Astrophys. Suppl. Ser. 143, 391 (2000)>
       =2000A&AS..143..391S
    ================================================================================
    ADC_Keywords: X-ray sources ; Magellanic Clouds

    Keywords: catalogues - galaxies: Magellanic Clouds - galaxies: stellar content -
              X-rays: galaxies - X-rays: stars

    Description:
        The ROSAT HRI LMC source catalogue is based on all 543 pointed
        observations of the ROSAT HRI between 1990 and 1998 with exposure
        times higher than 50 sec. The observations covered a 10 deg x 10 deg
        field including the LMC. The catalogue contains 397 X-ray sources.
        Sources showing flux variability in ROSAT HRI and PSPC are listed in
        Table 1. Table 2 contains HRI sources which were identified with known
        objects in other catalogues and literature. Table 3 is a list of new
        classifications. The whole source catalogue from HRI observations is
        given in Table 4.

    File Summary:

           FileName      Lrecl  Records   Explanations

    ×                   80        .   This file
    × ReadMe            80        .   This file
    × table1.dat        97       26   Variable sources
    × table2.dat       146       97   Identified sources
    × table3.dat       132       21   Classified sources
    × table4.dat       182      397   ROSAT HRI LMC catalogue
    × refs.dat         209       18   References

    See also:
                  IX/28 : ROSAT HRI Pointed Observations (1RXH) (ROSAT Team, 1999)
         J/A+AS/139/277 : LMC X-ray sources ROSAT PSPC catalogue (Haberl+, 1999)
         J/A+AS/142/41  : SMC X-ray sources ROSAT PSPC catalogue (Haberl+, 2000)
         J/A+AS/147/75  : ROSAT HRI catalogue of SMC x-ray sources (Sasaki+, 2000)

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

       Bytes Format Units   Label     Explanations

       1-  3  I3    ---     HRI       HRI source number
       5- 10  E6.1  ct/s    Hrate     HRI count rate
      12- 17  E6.1  ct/s    Prate     ? PSPC count rate
      19- 25  F7.1  ---     Fquo      Fmax/Fmin
      27- 33  F7.1  ---     redChi    reduced Chi square
      35- 36  I2    ---     dof       degrees of freedom
      38- 41  I4    ---     PNo       ? PSPC source number, see Note (G1)
      43- 97  A55   ---     Remarks   Source ID, see Note (1)

    Note (1): < > for new classification.
              References between [] are defined in refs.dat file

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

       Bytes Format Units     Label     Explanations

       1-  3  I3    ---       HRI       HRI source number
       5-  6  I2    h         RAh       Right ascension J2000
       8-  9  I2    min       RAm       Right ascension J2000
      11- 14  F4.1  s         RAs       Right ascension J2000
          16  A1    ---       DE-       Declination sign J2000
      17- 18  I2    deg       DEd       Declination J2000
      20- 21  I2    arcmin    DEm       Declination J2000
      23- 24  I2    arcsec    DEs       Declination J2000
      26- 29  F4.1  arcsec    PosErr    Positional error
      31- 37  F7.1  ---       MLexi     Existence Likelihood
      39- 46  E8.2  ct/s      Rate      Count rate
      48- 55  E8.2  ct/s      e_Rate    Count rate error
      57- 60  F4.1  arcsec    Extent    Source extent
      62- 64  F3.1  arcsec    e_Extent  Extent error
      66- 71  F6.1  ---       MLext     Extent Likelihood
      73- 76  I4    ---       PNo       ? PSPC source number, see Note (G1)
      78- 82  F5.2  ---       PHR1      ? Hardness ratio 1 of the PSPC source
      84- 87  F4.2  ---       e_PHR1    ? Error of hardness ratio 1
          88  A1    ---       n_PHR1    [*] * when no uncertainty for PHR1 value
      90- 94  F5.2  ---       PHR2      ? Hardness ratio 2 of the PSPC source
      96- 99  F4.2  ---       e_PHR2    ? Error of hardness ratio 2
         100  A1    ---       n_PHR2    [*] * when no uncertainty for PHR2 value
     102-145  A44   ---       Remarks   Source classification, see Note (1)

    Note (1): fg = foreground
         Candidates from literature are marked with '?' behind the source class
         References between [] are defined in refs.dat file

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

       Bytes Format Units     Label         Explanations

       1-  3  I3    ---       HRI           HRI source number
       5-  6  I2    h         RAh           Right ascension J2000
       8-  9  I2    min       RAm           Right ascension J2000
      11- 14  F4.1  s         RAs           Right ascension J2000
          16  A1    ---       DE-           Declination sign J2000
      17- 18  I2    deg       DEd           Declination J2000
      20- 21  I2    arcmin    DEm           Declination J2000
      23- 24  I2    arcsec    DEs           Declination J2000
      26- 29  F4.1  arcsec    PosErr        Positional error
      31- 36  F6.1  ---       MLexi         Existence Likelihood
      38- 45  E8.2  ct/s      Rate          Count rate
      47- 54  E8.2  ct/s      e_Rate        Count rate error
      56- 59  F4.1  arcsec    Extent        Source extent
      61- 64  F4.1  arcsec    e_Extent      Extent error
      66- 70  F5.1  ---       MLext         Extent Likelihood
      72- 76  F5.2  ---       log(Fx/Fopt)  log(Fx/Fopt)
      78- 81  I4    ---       PNo           ? PSPC source number, see Note (G1)
      83- 86  F4.2  ---       PHR1          ? Hardness ratio 1 of the PSPC source
      88- 91  F4.2  ---       e_PHR1        ? Error of hardness ratio 1
      93- 96  F4.2  ---       PHR2          ? Hardness ratio 2 of the PSPC source
      98-101  F4.2  ---       e_PHR2        ? Error of hardness ratio 2
     103-132  A30   ---       Remarks       Source classification (1)

    Note (1): References between [] are defined in refs.dat file

    Byte-by-byte Description of file:  table4.dat

       Bytes Format Units     Label     Explanations

       1-  3  I3    ---       HRI       HRI source number
       5-  6  I2    h         RAh       Right ascension J2000
       8-  9  I2    min       RAm       Right ascension J2000
      11- 14  F4.1  s         RAs       Right ascension J2000
          16  A1    ---       DE-       Declination sign J2000
      17- 18  I2    deg       DEd       Declination J2000
      20- 21  I2    arcmin    DEm       Declination J2000
      23- 24  I2    arcsec    DEs       Declination J2000
      26- 29  F4.1  arcsec    PosErr    Positional error
      31- 37  F7.1  ---       MLexi     Existence Likelihood
      39- 46  E8.2  ct/s      Rate      Count rate
      48- 55  E8.2  ct/s      e_Rate    Count rate error
      57- 60  F4.1  arcsec    Extent    Source extent
      62- 65  F4.1  arcsec    e_Extent  Extent error
      67- 72  F6.1  ---       MLext     Extent Likelihood
          74  A1    ---       l_PRate   see Note (1)
      75- 82  E8.2  ct/s      PRate     ? PSPC count rate, see Note (1)
      84- 87  I4    ---       PNo       ? PSPC source number, see Note (G1)
      89- 93  F5.2  ---       PHR1      ? Hardness ratio 1 of the PSPC source
      95- 98  F4.2  ---       e_PHR1    ? Error of hardness ratio 1
          99  A1    ---       n_PHR1    [*] * when no uncertainty for PHR1 value
     101-105  F5.2  ---       PHR2      ? Hardness ratio 2 of the PSPC source
     107-110  F4.2  ---       e_PHR2    ? Error of hardness ratio 2
         111  A1    ---       n_PHR2    [*] * when no uncertainty for PHR2 value
     113-182  A70   ---       Remarks   Source classification, see Note (2)

    Note (1): For sources which are listed in the ROSAT PSPC catalogue
        (Haberl & Pietsch, 1999, Cat. J/A+AS/139/277) PSPC count rates are
        taken from the catalogue. Otherwise PSPC count rate is the 2 sigma
        upper limit from maximum likelihood algorithm ('<' in column Uplim).
    Note (2): fg: foreground
        Candidates from literature are marked with '?' behind the source class
        New classifications are put in < >
        References between [] are defined in refs.dat file

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

       Bytes Format Units   Label     Explanations

       1-  8  A8    ---     Ref       Reference code
      10- 28  A19   ---     BibCode   BibCode
      30- 83  A54   ---     Aut       Author names
      84-209  A126  ---     Com       Comments

    Global notes:

    Note (G1): PSPC source number from the ROSAT PSPC catalogue
               (Haberl & Pietsch, 1999, Cat. J/A+AS/139/277)

    Acknowledgements: Manami Sasaki manami@xray.mpe.mpg.de

    ================================================================================
    (End)                                        Patricia Bauer [CDS]    03-May-2000