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ADCADC/CDS Standard Document for Catalog:
/catalogs/7/7176/

The following is the "ReadMe" document that describes this ADC catalog. You can access the files described here in three ways:

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VII/176     Photometry and Spectroscopy of Elliptical Galaxies (Faber+ 1989)
================================================================================
Spectroscopy and Photometry of Elliptical Galaxies. VI. Sample Selection and
Data Summary.
    Faber S.M., Wegner G., Burstein D., Davies R.L., Dressler A.,
    Lynden-Bell D., Terlevich R.J.
   <Astrophys. J. Suppl. Ser. 69, 763 (1989)>
   =1989ApJS...69..763F
================================================================================
ADC_Keywords: Clusters, galaxy ; Photometry ; Redshifts
Keywords: galaxies: clusters: general - galaxies: photometry - 
          galaxies: distances and redshifts

Description:
    Photometric and spectroscopic data are presented for a survey of the
    nearest and brightest elliptical galaxies. Distances, velocities
    relative to the cosmic rest frame, and residual velocities relative to
    a velocity-flow model are calculated for individual galaxies and
    groups. Information is provided on the selection and completeness of
    the target and observed samples. Both samples appear to be noticeably
    deeper in the north than in the south. A new diameter system for
    ellipticals is described that is easy to measure on survey prints and
    is a useful indicator of B_T_ magnitude.

Important Notices:
  * This catalog is NOT the same with that of printed, but is selected.
    The original explanation file "a149.doc" from Burstein to Andernach
    describes as follows: "This file contains a total of 483 galaxies
    having relatively accurate Dn values (quality parameter 2 or better).
    Of these 483 galaxies, 385 were used by Lynden-Bell et al. for studies
    of the velocity field. The reasons why the 71 galaxies were excluded
    from the final survey are detailed in Lynden-Bell et al., and range
    from absence of velocity dispersions, a lower limit on velocity
    dispersions, and a surface brightness limitation."

  * However, the resultant number of galaxies by above elimination is 479,
    so the number of records in this file is 479.

  * In Lynden-Bell et al. (1988ApJ...326...19L), the following description
    is seen (p25L) "Of them, 433 have measured velocity dispersions.
    Galaxies with velocity dispersions less than 100 km/s ... eliminated
    all 25 of them from final data set. ... (8 more galaxies are
    eliminated due to various reasons)." The number of those galaxies
    which have no velocity dispersion measurement (0.000 is written in
    "logSIG" column) is 46, hence "71" (=46+25) as above. The number 400
    (=479-71-8) coincides with that written in the top line of the
    Abstract of Lynden-Bell et al. Therefore, the number of "483" written
    above seems to be erroneous. The number "385" is seen in the Fig.1 of
    Lynden-Bell et al.

  * The values in column "B-V0" in the file "table1" are those corrected
    according to the ERRATA (ApJS, 71,173 (1989)).

  * Columns "n_{B-V}", "D_{FW}", "R_{FW}", "k", "M" and "Remarks" in the
    published Table 1 are omitted in the file.

  * The blank entries in the published Table 1 is filled, in this file, by
    some unexpected values, such as 0 in columns "Ngr", "Vhel", "Vgr",
    "B-V0", "SBe", "logSIG", "Mg2", or 0.10 in "BT", -0.99 in "logAe".

  * The relevant data have been corrected for extinction, redshift and
    cosmological effects, and "logSIG" and "Mg2" are corrected for
    distance-dependent aperture effects, as detailed in Davies et
    al. (1987ApJS...64..581D).

  * For some columns of Table 1, detailed explanations are given in the
    paper. In the following "Byte-by-byte Description...", they are
    indicated by the page number (e.g., p765L).

File Summary:
--------------------------------------------------------------------------------
 FileName      Lrecl     Records      Explanations
--------------------------------------------------------------------------------
ReadMe            80           .      This file
table1            96         479      Photometric and spectroscopic
                                      obs. data for elliptical galaxies
--------------------------------------------------------------------------------

Byte-by-byte Description of file: table1
--------------------------------------------------------------------------------
   Bytes  Format    Units       Label    Explanations
--------------------------------------------------------------------------------
   3-  5   I3       ---         NO       [1,577]+ galaxy ID number in this survey (1)
   7- 16   A10      ---         Name     Galaxy name: 'N'=NGC, 'I'=IC, 'U'=UGC
                                           'E&G'=ESO, 'CR'=Chincarini & Rood(1971),
                                          'A'=anonymous, 'D'=Dressler(1980)   (2)
  17- 22   F6.2     deg         GLON     galactic longitude
  24- 29   F6.2     deg         GLAT     galactic latitude
  31- 35   F5.2     mag         AB       galactic extinction in B magnitude. p765R
  37- 39   I3       ---         Ngr      []?=0 number of group to which galaxy is
                                           assigned. p765R
  41- 45   I5       km/s        Vhel     []?=0 observed heliocentric velocity
                                           of galaxy. p765R
  47- 51   I5       km/s        Vgr      []?=0 heliocentric velocity for group. p765R
  53- 56   F4.2     mag         B-V0     []?=0.00 average B-V color in 67"
                                           diameter aperture (3)
  58- 62   F5.2     mag         BT       []?=0.10 Total magnitude on the RC2
                                           system from fitting to the
                                           photoelectric aperture growth curve.
  64- 68   F5.2     0.1arcmin   logAe    []?=-0.99 de Vaucouleurs effective diameter
                                         expressed as log(Ae/0.1arcmin). p765R
      70   I1       ---         q_logAe  [1,4] quality flag for Ae and SBe. p765R
      71   I1       ---         q_logDn  [1,4] quality flag for Dn. p765R,p777L
      72   I1       ---         q_BT     [1,4] quality flag for BT. p765R,p777L
  74- 78   F5.2     mag/arcsec2 SBe      []?=0.000 mean B surface brightness
                                         within Ae.
  80- 84   F5.2     0.1arcmin   logDn    angular diameter, "Dn", expressed as
                                         log(Dn/0.1arcmin). p765R
  86- 90   F5.3     km/s        logSIG   []?=0.000 rest-frame nuclear velocity
                                           dispersion, "SIG", expressed as log(SIG).
                                           p777L
  92- 96   F5.3     mag         Mg2      []?=0.000 nuclear Mg2 index, fully
                                           corrected. p777L
--------------------------------------------------------------------------------
Note (1): In the published Table 1, the consecutive number is given here.
   However, the archived file is not consecutive because of the reason written
   in the Notes of Description above. See paper p765L.
Note (2): the abbreviations are:
   'N'=NGC, 'I'=IC, 'U'=UGC 'E&G'=ESO, 'A'=anonymous,
   'CR'=Chincarini & Rood (1971ApJ...168..321C),
   'D'=Dressler (1980ApJS...42..565D); the descriptions "Dressler (1983)"
       in the paper should be read "Dressler (1980)", both in text and
       in references.
Note (3): This is not that in Table 1, but the true one as described in
   ERRATA (ApJS, 71,173 (1989))
--------------------------------------------------------------------------------

Historical notes:
  * The catalogue was provided by courtesy of D.Burstein to H. Andernach;
    it was numbered A149 in H. Andernach's "List of Astronomical Catalogues
    and Documents kindly provided on request by various authors"
  * 14-Mar-1994: First archived (Koichi Nakajima [CDS])
    (The date of the latest archiving, see the date of each file.)
================================================================================
(End)                                        Koichi Nakajima [CDS]   15-Feb-1994

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