ACDS V10.0 - Detailed Description of VIII/69A

ACDS V10.0 - Sun Jan 19 03:07:46 CET 2025

| # Detailed Description of VIII/69A : The WISH catalogue at 352 MHz (de Breuck+ 2002) |

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.

    VIII/69A            The WISH catalogue at 352 MHz           (de Breuck+ 2002)
    ================================================================================
    The Westerbork in the Southern Hemisphere 9WISH) Survey
         De Breuck C., Tang Y., de Bruyn A.G., Rottgering H., van Breugel W.
        <Astron. Astrophys. 394, 59 (2002)>
        =2002A&A...394...59D
    ================================================================================
    ADC_Keywords: Radio sources ; Surveys

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

    Description:
        The Westerbork In the Southern Hemishpere (WISH) is a low-frequency
        (352MHz) radio survey that covers most of the sky between -25 and -15
        degrees (1.60sr) at a wavelength of 92cm to a limiting flux density of
        approximately 18mJy (5sigma).

        Due to the very low elevation of the observations, the survey has a
        much lower resolution in declination than in right ascension
        (54"x54"cosec{delta}). A correlation with the 1.4GHz NVSS (VIII/65)
        shows that the positional accuracy is less constrained in declination
        than in right ascension, but there is no significant systematic error.

        The correlation with the NVSS was also used to construct a sample of
        faint Ultra Steep Spectrum sources (file uss.dat, table 2 of the
        paper). This sample is aimed at increasing the number of known high
        redshift radio galaxies to allow detailed follow-up studies of these
        massive galaxies and their environments in the early Universe.

        WISH is a collaboration between the Netherlands Foundation for
        Research in Astronomy (NFRA/ASTRON) and the Leiden Observatory. Carlos
        De Breuck, Yuan Tang, Ger de Bruyn, Huub Rottgering, Wil van Breugel,
        and Roeland Rengelink. For more information, see the WENSS home page
        at http://www.strw.leidenuniv.nl/wenss/
        or contact wenss.people@strw.leidenuniv.nl

    File Summary:

           FileName      Lrecl  Records   Explanations

    ×                   80        .   This file
    × ReadMe            80        .   This file
    × wish11.dat       114    90357   The WISH (v1.1) Catalogue
    × uss.dat          120      154   Ultra Steep Spectrum sources (table2 of paper)

    See also:
      http://www.strw.leidenuniv.nl/wenss/ : WENSS and WISH home page
           VIII/62 : The Westerbork Northern Sky Survey (Leiden, 1998)
           VIII/65 : The NRAO VLA Sky Survey (NVSS) (Condon+ 1998)

    Byte-by-byte Description of file:  wish11.dat

       Bytes Format Units   Label     Explanations

       1-  3  A3    ---     ---       [WNB]
       4- 15  A12   ---     WNB       Source name based on B1950 (1)
          16  A1    ---     m_WNB     Multiplicity on WNB name (1)
      18- 19  I2    h       RA1950h   Right Ascension B1950 (hours)
      21- 22  I2    min     RA1950m   Right Ascension B1950 (minutes)
      24- 28  F5.2  s       RA1950s   [0,60] Right Ascension B1950 (seconds)
          30  A1    ---     DE1950-   Declination B1950 (sign)
      31- 32  I2    deg     DE1950d   Declination B1950 (degrees)
      34- 35  I2    arcmin  DE1950m   Declination B1950 (minutes)
      37- 40  F4.1  arcsec  DE1950s   [0,60] Declination B1950 (seconds)
      43- 44  I2    h       RAh       Right Ascension J2000 (hours)
      46- 47  I2    min     RAm       Right Ascension J2000 (minutes)
      49- 53  F5.2  s       RAs       [0,60] Right Ascension J2000 (seconds)
          55  A1    ---     DE-       Declination J2000 (sign)
      56- 57  I2    deg     DEd       Declination J2000 (degrees)
      59- 60  I2    arcmin  DEm       Declination J2000 (minutes)
      62- 65  F4.1  arcsec  DEs       [0,60] Declination J2000 (seconds)
          68  A1    ---     type      [SCME] Source type (2)
          70  A1    ---     f_WNB     [*] problems in fitting the source. (3)
      73- 78  I6    mJy     S         The peak flux density at 352MHz in mJy/beam.
      81- 86  I6    mJy     SI        The integrated flux density at 352MHz in mJy.
      88- 91  I4    arcsec  bMax      The major  axis
      93- 95  I3    arcsec  bMin      The minor  axis
      97- 99  I3    deg     PA        The position angle
     101-104  F4.1  mJy     Nse       the local rms-noise level in mJy/beam
     106-114  A9    ---     Frame     The frame from which the source was obtained

    Note (1): some sources are listed twice, if they have been observed in
        different fields. The double entries provide variability information.
        Some double entries in the same field are however due to problems in
        the source fitting algorithm, and are marked with a '*' in the Flags
        column (see column f_WNB).
    Note (2): the type is:
        S = Single component source.
        M = Multicomponent source.
        C = Component of a multicomponent source.
        E = Extended source (more than four components).
    Note (3): in case of problems in fitting the source, the
        source parameters were obtained using 'aperture' integration.

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

       Bytes Format Units   Label     Explanations

       1-  4  A4    ---     ---       [WN J]
       5- 13  A9    ---     WNJ       Name of the source, based on J2000 position
      15- 18  I4    mJy     S352MHz   352 MHz flux density
      20- 22  I3    mJy    e_S352MHz  Uncertainty in 352 MHz flux density
      24- 28  F5.1  mJy     S1400MHz  1400 MHz flux density
      30- 33  F4.1  mJy   e_S1400MHz  Uncertainty in 1400 MHz flux density
      35- 39  F5.2  ---     Sp-Index  Spectral index 352-1400
      41- 44  F4.2  ---   e_Sp-Index  Error in spectral index 352-1400
      46- 47  I2    h       RAh       Right ascension (J2000.0)
      49- 50  I2    min     RAm       Right ascension (J2000.0)
      52- 56  F5.2  s       RAs       Right ascension (J2000.0)
          58  A1    ---     DE-       Declination sign
      59- 60  I2    deg     DEd       Declination (J2000.0)
      62- 63  I2    arcmin  DEm       Declination (J2000.0)
      65- 68  F4.1  arcsec  DEs       Declination (J2000.0)
      70- 75  F6.4  ---     z         ? Redshift
      77- 81  A5    ---     ID        Identification of filter or survey (1)
      83-120  A38   ---     Ref       Reference

    Note (1): For the ID, we provide either the name of the large sky survey,
        or the filter of literature observations.

    History:
      * 16-Dec-2002: Prepared by Carlos De Breuck [Leiden Obs.]
      * 14-May-2004: the column m_WNB was added to distinguish between
        the sources sharing the same name. Four designations which were
        in error were corrected:
        WNB0855.0-2103 (was WNB  0855-21033)
        WNB1440.4-1939 (was WNB  1440-19395)
        WNB1621.2-2427 (was WNB  1621-24278)
        WNB2139.6-1208 (was WNB  2139-12084)
    ================================================================================
    (End)   Carlos De Breuck [Leiden Obs.], Francois Ochsenbein [CDS]    14-May-2004