ACDS V10.0 - Detailed Description of VII/193

ACDS V10.0 - Sun Jan 19 12:35:34 CET 2025

| # Detailed Description of VII/193 : The CfA Redshift Catalogue, Version June 1995 (Huchra+ 1995) |

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.

    VII/193            The CfA Redshift Catalogue, Version June 1995  (Huchra+ 1995)
    ================================================================================
    The CfA Redshift Catalogue, Version June 1995
         Huchra J.P., Geller M.J., Clemens C.M., Tokarz S.P., Michel A.
        <Harvard-Smithsonian Center for Astrophysics (1995)>
    ================================================================================
    ADC_Keywords: Redshifts

    Notice:
        People who use the redshift catalogues are strongly encouraged to
        reference both the catalogue version and its accompanying description
        (e.g. Huchra, J. Geller, M., Clemens, C., Tokarz, S and Michel, A.
        1992, Bull. Inf. C.D.S. 41, 31) as well as original sources for the
        galaxy redshifts as given in the file zsource.tex (or zsource.dat)

        If you have any further questions (and are in dire need of answers),
        address them to John Huchra huchra@cfa.harvard.edu

    Description:
        The catalog (files zcat.dat and zbig.dat) incorporates much of the
        latest velocity data from the Whipple Observatory and other sources as
        well as velocities from earlier compilations such as the Second
        Reference Catalogue of de Vaucouleurs, de Vaucouleurs, and Corwin; the
        Index of Galaxy Spectra of Gisler and Friel, and the Catalogue of
        Radial Velocities of Galaxies of Palumbo, Tanzella-Nitti, and
        Vettolani. The data included here are BT magnitudes and a few UGC
        numbers with increased "accuracy" in the velocity source information.

        The following separate tables contain selected objects
        from the CfA Redshift Survey:

        - the first CfA Redsdhift Survey (Huchra et al., 1983ApJS...52...89H);
          this catalogue contains 2395 galaxies, a number slightly smaller
          than the published number of 2399, since there have been small
          corrections to the magnitudes for multiple galaxies. This version
          has had new morphological types added by me as well as POSS
          diameters measured for those galaxies that were not in the UGC or
          did not have UGC diameters.

        - the first slice of the second CfA redshift survey
          (Huchra et al., 1990ApJS...72..433H)

        - the second slice of the CfA redshift survey (Huchra et al.,
          1995ApJS...99..391H)

        See the complete description in 'zcom.tex' (in plain TeX),
        or zcom.txt (plain ascii)

    File Summary:

           FileName      Lrecl  Records   Explanations

    ×                   80        .   This file
    × ReadMe            80        .   This file
    × zcat.dat         130    57536   The CfA Redshift Catalogue
    × zbig.dat         108     1202   The list with Large z
    × zsource.dat      228      825   References of redshifts
    × zcom.tex         180      966   Introduction by Huchra et al. in plain TeX
    × zsource.tex      278     1150   References of redshifts in plain TeX
    × limform.tex       81      384   TeX definitions (\include'd by z*.tex)
    × zcom.txt          87      720   Introduction by Huchra et al. in plain ascii
    × cfa1.dat         130     2395   First CfA Redshift Survey (1983ApJS...52...89H)
    × cfa2s1.dat       130     1156   First slice of Second CfA Redshift Survey
                                       (1990ApJS...72..433H)
    × cfa2s2b.dat      130      718  *Second slice of CfA Redshift Survey, bright
    × cfa2s2f.dat      130       77  *Second slice of CfA Redshift Survey, faint

    Note on cfa2s2b.dat, cfa2s2f.dat:
         the second slice (published in 1995ApJS...99..391H) comes in two
         parts, the first part are the galaxies brighter than 15.5 (table1)
         and the second are those that are fainter than 15.5 (table2).

    See also:
        ftp://fang.harvard.edu/pub/catalogs : FTP access to CfA original files.

    Byte-by-byte Description of file:  zcat.dat  cfa*.dat

       Bytes Format  Units   Label    Explanations

       1- 11  A11    ---     Name     Source name
      12- 13  I2     h       RAh      Right Ascension 1950 (hours)
      14- 15  I2     min     RAm      Right Ascension 1950 (minutes)
      16- 19  F4.1   s       RAs      Right Ascension 1950 (seconds)
          20  A1     ---     DE-      Declination 1950 (sign)
      21- 22  I2     deg     DEd      Declination 1950 (degrees)
      23- 24  I2     arcmin  DEm      Declination 1950 (minutes)
      25- 26  I2     arcsec  DEs      ? Declination 1950 (seconds)
      27- 31  F5.2   mag     Bmag     ? B magnitude
      32- 36  I5     km/s    Vh       ? Heliocentric velocity; redshifts have been
                                        converted with V = z c, with
                                        c = 299792.5 km/s
      37- 39  I3     km/s    e_Vh     ? Mean error on Vh
          40  A1     ---     r_Bmag   Source for Bmag              see Note (1)
      41- 44  I4     ---     zRef     [-901/4900]? Source of Vh,   see Note (2)
      45- 46  I2     ---     Ttype    [-9/40]? Morphological Type, see Note (3)
          47  A1     ---     Btype    [AXB]? Bar Type              see Note (3)
          48  I1     ---     Lclass   [1/9]? Luminosity class      see Note (3)
          49  A1     ---     Struct   [DPRrstT/] Structure notes   see Note (3)
      50- 55  F6.2   arcmin  Diam1    ? Diameter   (Note: 0, 1 or 2 decimals)
      56- 61  F6.2   arcmin  Diam2    ? Diameter   (Note: 0, 1 or 2 decimals)
      62- 67  F6.2   mag     BT       ? BT magnitude
      68- 73  A6     ---     UGC/ESO  Number from UGC VII/26 or ESO/Upp VII/34
      74- 79  F6.3   Mpc     Dist     ? Distance
      80- 85  A6     ---     RFN      Plate number, see zcom.tex
      86-130  A45    ---    Comments  Free-text comment, see zcom.tex

    Note (1): see "Photometry and magnitude sources" section below

    Note (2): references are in file "zsource.dat"; the first two digits
              (bytes 41-42) indicate the basic sources
              (see "Basic Radial Velocity Sources" below)
    Note (3): See a description in "Morphological types in zcat" section below.

    Morphological types in zcat:
       1. Values of Ttype
          -9 = QSO/AGN
          -7 = Unclassified Elliptical
          -6 = Compact Elliptical
          -5 = E, and  dwarf E
          -4 = E/SO
          -3 = L-, SO-
          -2 = L, SO
          -1 = L+, SO+
           0 = SO/a, SO-a
           1 = Sa
           2 = Sab
           3 = Sb
           4 = Sbc
           5 = Sc
           6 = Scd
           7 = Sd
           8 = Sdm
           9 = Sm, Magellanic Spiral
          10 = Im, Irr I, Magellanic Irregular, Dwarf Irregular
          11 = Compact Irregular, Extragalactic HII Region
          15 = Peculiar, Unclassifiable
          16 = Irr II
          20 = S..., Sc-Irr, Unclassified Spiral
          24 = Open Star Cluster
          25 = Plate Flaw, Star, etc. misclassified as galaxy!
          26 = T Tauri star (from IRAS Surveys)
          27 = Globular Cluster
          30 = Planetary Nebula
          31 = Dark Cloud (no object visible on POSS)
          32 = HII region in external galaxy
          33 = Reflection Nebulosity
          40 = Indiv. Comp. of Multiple Nucleus Galaxy
       2. Bar types in zcat
           A = A, unbarred
           X = X, AB, mixed type
           B = B, Barred
       3. Peculiarities
           D = Double or Multiple
           P = Peculiar
           R = Outer Ring
           r = Inner Ring
           s = S-shaped
           t = Mixed (Inner ring/S-shaped)
           T = Pseudo outer ring
           / = Spindle
       4. Luminosity Classes (L) (for Spirals and Irregulars)
           1 I      2 I-II      3 II    4 II-III
           5 III    6 III-IV    7 IV    8 IV-V     9 V

    Photometry and magnitude sources:
       0 = Blank   B(0) 1ST Reference Catalogue
       1 = Zwicky Catalogue
       2 = Corrected Shapley-Ames
       3 = Tully and Fisher
       4 = J. Graham
       5 = Markarian, other Russian estimates
       6 = BT - 2ND Reference Catalogue
       7 = MCG (Vorontsov-Velyaminov))
       8 = CCD Blue
       9 = Observers eye estimates (blue)
       A = Corrected Blue magnitudes from the RC3
       B = Photoelectric or Photographic blue
       C = Eye estimates from the Case Low dispersion survey
       D = Dartmouth Red instrumental
       d = PDS magnitudes calibrated to Kron-Cousins red
       G = STScI Guide Star Catalogue (V or J)
       H = Zwicky Mag for multiple systems split by JPH
       I = CCD I
       J = Photographic J, IIIa-J
       L = SSRS2 Magnitude from L. DaCosta (approx BT)
       P = PGC magnitude
       r = Gunn red magnitude
       R = Photographic of Photoelectric R, IIIa-F, O-98 or 103aE
       v = Dressler's eye estimate (visual)
       V = Photographic or Photoelectric V
       W = CCD V

    Basic Radial Velocity Sources:
       00 = Blank  2ND REF CAT, de Vaucouleurs et al.
       01 = Sandage and Tammann (Cat. VII/51)
       02 = Tully and Fisher (Nearby Galaxy Catalog, cat. VII/145)
       03 = Huchra-KPNO, (including Markarian list)
       04 = Rubin, Ford, Kinmann
       05 = Other Russian ( Byurakan, Alam-Alta, SAO)
       06 = Arecibo 21 cm - Salpeter et al., Giovanelli and Haynes
       07 = Martin
       08 = German  21cm (Bonn)
       09 = NRAO, VLA 21cm
       10 = CTIO
       11 = KPNO
       12 = ESO
       13 = HCO - M. Davis
       14 = E. Turner
       15 = Steward Observatory  - Tifft, Gregory
       16 = Rood, Chincarini, Kinter, Dickel
       17 = AAT + Mt. Stromlo
       18 = SAO - 6-meter Karachentsev, Kopylov
       19 = Texas - McDonald Observatory
       20 = Mt. Wilson - HMS, Rudnicki, Zwicky
       21 = Lick
       22 = French 21sm -- Nancay
       23 = British Optical -- I.N.T., Herschel Telescope
       24 = Palomar - Hale Telescope, Mayer telescope
       25 = Australian 21cm - Parkes
       26 = Dutch 21cm
       27 = Mt. Hopkins - CfA Redshift Survey, MMT
       28 = British 21cm  (Jodrell Bank, etc.)
       29 = Argentina - Sersic
       30 = Thuan, Seitzer, Knapp (21-cm dwarf surveys)
       31 = South Africa - SAAO -- Fairall
       32 = Arecibo - Sullivan, Bothun, Schommer
       33 = H.J. Rood - NSSDC Catalog
       34 = Ohio + Penn State
       35 = Other Optical (eg.Calar Alto, Wise, Tartu) % LaPalma
       36 = Las Campanas (100", 40"),Other Southern
       37 = Palumbo, et al. (Catalogue of Redshifts)
       38 = ESO-21cm Catalog
       39 = Brazil - Southern Survey, L. daCosta
       40 = MIT-Dartmouth-Michigan Surveys (McGraw Hill)
       41 = Hawaii - CFHT, etc.
       42 = Dartmouth - Century Survey
       43 = Davis and Strauss IRAS Sources (Published)
       44 = Hewitt and Burbidge QSO Catalog
       45 = Keck
       46 = Redshiftless entries (discoveries, companions...)
       47 = QDOT survey references
       48 = Master file data
       49 = Bothun, Moulf, published velocities; priv. comm.
       -9 = SAAO, Menzies; Fairall, Vettolani and DaCosta
       -8 = Dartmouth, not yet published
       -7 = CFA, not yet published (Kirshner)
       -6 = Brazil (L. daCosta) not yet published
       -5 = Davis and Strauss (IRAS Sources)
       -4 = Bothun, Mould not yet published (Palomar, Arecibo)
       -3 = CFA, not yet published (Forman and Jones)
       -2 = CFA, not yet published   MMT Observations (JPH)
       -1 = CFA, not yet published  Tillnghast Observations (JPH)

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

       Bytes Format  Units   Label    Explanations

       1- 11  A11    ---     Name     IAU-like name
      12- 13  I2     h       RAh      Right Ascension 1950 (hours)
      14- 15  I2     min     RAm      Right Ascension 1950 (minutes)
      16- 19  F4.1   s       RAs      Right Ascension 1950 (seconds)
          20  A1     ---     DE-      Declination 1950 (sign)
      21- 22  I2     deg     DEd      Declination 1950 (degrees)
      23- 24  I2     arcmin  DEm      Declination 1950 (minutes)
      25- 26  I2     arcsec  DEs      ? Declination 1950 (seconds)
      28- 33  F6.4   ---     z        ? Redshift
      35- 39  F5.2   mag     Bmag     ? B magnitude
          41  A1     ---     r_Bmag   Source of Bmag     see Note (1)
      43- 46  I4     ---     zRef     ? Source of z      see Note (2)
      47- 48  I2     ---     Ttype    [-9/40]? Morphological type, see Note (3)
      55- 67  A13    ---     Notes    These columns may contain either the
                                      diameters in arcmin, or spectrum ids
      69-108  A40    ---    Comments  Free-text comments.

    Note (1): see "Photometry and magnitude sources" section above

    Note (2): references are in file "zsource.dat"; the first two digits
              (bytes 41-42) indicate the basic sources
              (see "Basic Radial Velocity Sources" above)
    Note (3): See a description in "Morphological types in zcat" section above.

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

       Bytes Format Units   Label     Explanations

       1-  4  I4    ---     zRef      [-901/4900] Vh or z reference
       6-228  A223  ---     Text      Text of reference

    Acknowledgments:
      This version was kindly provided by John Huchra (huchra@cfa.harvard.edu);
      several details of this documentation make use of the previous version
      of this catalog (numbered VII/164) to which Cathy Clemens at CfA,
      Nancy G. Roman (nancy.g.roman@adc.gsfc.nasa.gov) and N. Paul Kuin
      (kuin@adc.gsfc.nasa.gov) at ADC participated.

    References:
      Huchra, J., Davis, M., Latham, D. and Tonry J., =1983ApJS...52...89H
      Huchra, J.P., Geller, M.J., de Lapparent, V. and Corwin H.G.Jr,
        =1990ApJS...72..433H
      Huchra, J. Geller, M., Clemens, C., Tokarz, S and Michel, A., 1992
        Bull. Inf. C.D.S. 41, 31  (1992BICDS..41...31H)
      Huchra, J.P., Geller, M.J. and Corwin H.G.Jr,   =1995ApJS...99..391H
    ================================================================================
    (End)                                     Francois Ochsenbein [CDS]  22-Oct-1996