ACDS V10.0 - Detailed Description of V/123A

ACDS V10.0 - Sun Jan 19 02:37:34 CET 2025

| # Detailed Description of V/123A : Catalog of Cataclysmic Variables (Downes+ 2001-2006) |

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.

    V/123A        Catalog of Cataclysmic Variables     (Downes+ 2001-2006)
    ================================================================================
    A catalog and atlas of cataclysmic variables: the living edition
        Downes R.A., Webbink R.F., Shara M.M., Ritter H., Kolb U., Duerbeck H.W.
       <Publ. Astron. Soc. Pac. 113, 764 (2001)>
       =2001PASP..113..764D
    ================================================================================
    ADC_Keywords: Atlases ; Stars, variable ; Binaries, cataclysmic

    Abstract:
        The Catalog and Atlas of Cataclysmic Variables (Edition 1: Downes &
        Shara; Edition 2: Downes, Webbink, & Shara) has been a valuable source
        of information for the cataclysmic variable community. However, the
        goal of having a central location for all objects is slowly being lost
        as each new edition is generated. There can also be a long time delay
        between new information becoming available on an object and its
        publication in the catalog. To eliminate these concerns, as well as to
        make the catalog more accessible, we have created a Web site which
        will contain a "living" edition of the catalog. We have also added
        orbital period information, as well as finding charts for novae, to
        the catalog.

        This catalogue supersedes the previous versions of 1997 (Cat. V/94)
        and 1993 (Cat. V/79).

        This version is dated February 2006, and supersedes the 2001 version
        (Cat. V/110)

    File Summary:

           FileName      Lrecl  Records   Explanations

    ×                   80        .   This file
    × ReadMe            80        .   This file
    × cv.dat           246     1830   Catalog of cataclysmic variables, Final Version
                                  (February 2006)
    × notes.dat        503     1146   Notes
    × refs.dat         397     1818   References

    See also:
      http://archive.stsci.edu/prepds/cvcat/index.html : A catalog and atlas
           of cataclysmic variables home page
      B/cv : Cataclysmic Binaries, LMXBs, and related objects (Ritter+, 2003-2005)

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

       Bytes Format Units     Label     Explanations

       2-  5  I4    ---       uid       Internal identification number
       7- 15  A9    ---       GCVS      GCVS-Name, or constellation name
      17- 18  I2    h         RAh       Right Ascension J2000 (hours) at Epoch
          19  A1    ---       ---       [:]
      20- 21  I2    min       RAm       Right Ascension J2000 (minutes) at Epoch
          22  A1    ---       ---       [:]
      23- 27  F5.2  s         RAs       ? Right Ascension J2000 at Epoch (seconds)
          29  A1    ---       DE-       Declination J2000, at Epoch (sign)
      30- 31  I2    deg       DEd       Declination J2000, at Epoch (degrees)
          32  A1    ---       ---       [:]
      33- 34  I2    arcmin    DEm       Declination J2000, at Epoch (minutes)
          35  A1    ---       ---       [:]
      36- 39  F4.1  arcsec    DEs       ? Declination J2000, at Epoch (seconds)
      42- 49  F8.5  arcsec/yr pmRA      ? Proper motion in RA
      52- 58  F7.5  arcsec/yr e_pmRA    ? Mean error on pmRA
      61- 68  F8.5  arcsec/yr pmDE      ? Proper motion in Dec
      71- 77  F7.5  arcsec/yr e_pmDE    ? Mean error on pmDE
      79- 86  F8.3  yr        Epoch     ? Epoch of position
      88- 90  I3    deg       GLON      ? Galactic longitude (blank for non-CV)
      92- 94  I3    deg       GLAT      ? Galactic latitude (blank for non-CV)
      96-102  A7    ---       VarType   Type of variability of the object (1)
     106-116  F11.7 d         Per       ? Period
     118-124  F7.2  yr        OutDate   ? Year of outburst (for novae)
         126  A1    ---       Cl        [YOG] belong to a cluster Open or Globular
         128  A1    ---       l_Maxmag  Limit flag on Maxmag
     129-132  F4.1  mag       Maxmag    ? Maximum value of magnitude range
         134  A1    ---       n_Maxmag  Band of Maxmag (2)
         135  A1    ---       ---       [-]
         136  A1    ---       l_Minmag  Limit flag on Minmag
     137-140  F4.1  mag       Minmag    ? Minimum value of magnitude range
         141  A1    ---       u_Minmag  Uncertainty flag on Minmag
         142  A1    ---       n_Minmag  Band of Minmag (2)
     144-151  A8    ---       ref(Coo)  Coordinate reference code (3)
         152  A1    ---     f_ref(Coo)  [*] Comment, see note (G1)
     154-161  A8    ---       ref(pm)   Reference code to proper motion
     163-170  A8    ---       ref(CV)   Reference code to the CV classification
         171  A1    ---      f_ref(CV)  [*V:/] *: Comment, see note (G1)
                                               /: two references
     172-178  A7    ---       ref(CV)2  Second Reference to CV classification
         179  A1    ---     f_ref(CV)2  [*] Comment, see note (G1)
     182-189  A8    ---       ref(Cha)  Chart reference code (5)
         190  A1    ---     u_ref(Cha)  Uncertainty flag on ref(Cha)
         191  A1    ---     n_ref(Cha)  [*] Comment, see note (G1)
     193-200  A8    ---       ref(Sp)   Spectrum reference code (6)
         201  A1    ---      n_ref(Sp)  [SX] Note on ref(Spe) (6)
         202  A1    ---      u_ref(Sp)  [:] reference unconformed (6)
         203  A1    ---      f_ref(Sp)  [*] Comment, see note (G1)
     205-212  A8    ---       ref(Per)  [0-9A-U -] Reference on Period
         213  A1    ---     f_ref(Per)  [*] Comment, see note (G1)
     215-234  A20   ---       Names     Discovery or common alternative (non-GCVS)
                                        designation for the object
         237  A1    ---       IUE       [U] observed by IUE
         238  A1    ---       HST       [H] observed by Hubble Space Telescope
         239  A1    ---       ARIEL5    [5] observed by Ariel-5
         240  A1    ---       HEAO1     [1] observed by HEAO-1
         241  A1    ---       HEAO2     [2] observed by HEAO-2
         242  A1    ---       EXOSAT    [E] observed by EXOSAT satellite
         243  A1    ---       ROSAT     [R] observed by ROSAT satellite
         244  A1    ---       GINGA     [G] observed by Ginga satellite
         245  A1    ---       ASCA      [A] observed by ASCA satellite
         246  A1    ---       EUVE      [X] observed by eXtreme-UV

    Note (1): Variability type is coded as follows:
        UG    = U Gem variable (dwarf nova)
        UGZ   = U Gem variable (Z Cam subtype)
        UGSS  = U Gem variable (SS Cyg subtype)
        UGSU  = U Gem variable (SU UMa subtype)
        UGWZ  = U Gem variable (WZ Sge subtype)
        N     = nova
        NA    = fast nova
        NB    = slow nova
        NC    = very slow nova
        NR    = recurrent nova
        NRA   = recurrent nova - giant donor
                (Webbink et al., 1987ApJ...314..653W)
        NRB   = recurrent nova - non-giant donor
                (Webbink et al., 1987ApJ...314..653W)
        SN    = possible supernova with no galaxy visible
        NL    = novalike variable
        NLV   = novalike variable (V Sge subtype;
                Steiner and Diaz, 1998PASP..110..276S)
        UX    = novalike variable (UX UMa subtype)
        VY    = novalike variable (VY Scl subtype -
                systems which undergo low states)
        AM    = AM Herculis variable (synchronous rotators)
        DQ    = DQ Herculis variable (non-synchronous rotators)
        CV    = cataclysmic variable (no type classification)
        CBSS  = close binary supersoft X-ray source
        IBWD  = interacting binary white dwarf
        M     = Mira variable
        I     = Irregular variable
        UV    = UV Ceti-type star
      Z AND   = symbiotic variable (Z And subtype)
      non-CV  = not a cataclysmic variable (although once classified as such)
      non-ex  = non-existent object
        PEC   = peculiar
        :     = uncertain
        ::    = very uncertain
    Note (2): Magnitude range:
        For novae, the primary sources are Duerbeck (1987SSRv...45....1D)
        Duerbeck (2001, private communication), while for the non-novae, the
        catalog of Ritter and Kolb (1998, Cat. V/99) is the prime source.
        When no other references to brightness were available, the GCVS values
        are used. The magnitude definitions are:
          U = Johnson U
          B = Johnson B
          V = Johnson V
          R = Johnson R
          I = Johnson I
          c = unfiltered CCD
          f = m(2200)
          g = Gunn g
          h = Hipparcos magnitude system
          i = Gunn i
          j = SRC j (unfiltered IIIa-J)
          p = photographic
          r = red
          s = Sloan g*
          u = m(1400)
          v = visual
          w = m(3000)
          x = m(F336W)
    Note (3): Reference to the coordinates code, RefCoo:
        Entries of consisting of the letter C followed by a four-character
        code correspond to plate-IDs from the HST Guide Star survey
    Note (5): Chart reference code:
        Note that the identifications of the CVs are based on the published
        charts (or in some cases coordinates only), and have not been
        independently verified by the authors.
    Note (6): Spectrum reference code:
         A suffix of S indicates a spectrum in quiescence, while a suffix
         of X indicates a spectrum in outburst.

         Whenever available, the quiescent spectrum was chosen for the catalog
         over an outburst spectrum.

         A colon (:) following the reference indicates that:
         (i) the spectrum is only described,
        (ii) the spectrum is a glass plate tracing, or
       (iii) the reference is unconfirmed (only for a few novae in Duerbeck's atlas)

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

       Bytes Format Units   Label     Explanations

       1-  4  I4    ---     uid       Internal identification number
       7- 15  A9    ---     GCVS      Designation in GCVS (Cat. II/250)
      18- 37  A20   ---     Name      Other name
      40-503  A464  --      Text      Text of note

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

       Bytes Format Units   Label     Explanations

       1-  8  A8    ---     Ref       Reference code
          10  A1    ---     ---       [=]
      11- 29  A19   ---     BibCode   Bibliographical code
      32-397  A366  ---     Text      Comments

    Global notes:

    Note (G1): *: There is a comment in the on-line version of the catalog,
        see notes.dat, or when using search mode
        at http://icarus.stsci.edu/~downes/cvcat/

    History:
        Copied at http://icarus.stsci.edu/~downes/cvcat
    ================================================================================
    (End)                   Francois Ochsenbein, Patricia Bauer [CDS]    29-Jan-2006