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J/A+AS/101/475      Spectroscopic observations of A3571 (Quintana+, 1993)
Spectroscopic observations of the galaxy cluster A 3571 (SC 1344-325)
    Quintana H., de Souza R.
   <Astron. Astrophys. Suppl. Ser. 101, 475 (1993)>
   =1993A&AS..101..475Q (SIMBAD/NED BibCode)
ADC_Keywords: Clusters, galaxy ; Radial velocities

Keywords: clusters of galaxies - X-ray clusters - galaxies velocities


Abstract:
    Spectroscopic data and density counts are presented for this southern
    cluster, which seems to belong to the outskirts of the Shapley 8
    concentration (= A 3558 = SC 1326-311). Using telescopes at the Cerro
    Tololo Interamerican Observatory and La Silla Observatory a total of
    72 galaxy velocities were measured giving a mean redshift of 0.0384
    and a global velocity dispersion of 1022 (+99, -77) km/s. A
    preliminary analysis of velocity and density data suggests the
    presence of various subgroups. The central core of the cluster is
    dominated by a very elongated, distorded and diffuse cD galaxy. This
    cluster may be an example where the cD was formed early in the
    collapse process of a cluster which has not reached overall
    virialization yet. The derived X-ray luminosity of ∼2x1044erg/s in
    the 2-6keV band places this cluster in the group of strong X-ray
    cluster sources.

File Summary:

       FileName      Lrecl  Records   Explanations

ReadMe            80        .   This file
table1            68       72   Galaxy velocities in SC 1344-325 = A 3571


Byte-by-byte Description of file: table1

   Bytes Format Units   Label     Explanations

   1-  3  I3    ---     Name      Object name
   6-  7  I2    h       RAh       Right ascension (1950)
   9- 10  I2    min     RAm       Right ascension (1950)
  12- 15  F4.1  s       RAs       Right ascension (1950)
      17  A1    ---     DE-       Declination sign
  18- 19  I2    deg     DEd       Declination (1950)
  21- 22  I2    arcmin  DEm       Declination (1950)
  24- 25  I2    arcsec  DEs       Declination (1950)
  28- 32  I5    km/s    HV        Heliocentic velocity
  34- 35  I2    ---     Nline     ? Number of lines measured in each spectrum
  37- 42  A6    ---     Qual      Quality comment
  44- 49  A6    ---     Tel       Telescope (1)
  51- 54  A4    ---     Group     Subclustering group
  56- 68  A13   ---     Note      Notes

Note (1): 3.6OPT: OPTOPUS
            T1IT: CTIO 1m
            E1IT: ESO 1.5m
             T4V: CTIO 4m


History:
    OCR by LEDA team (Lyon Observatory) for the name, position and
    velocity columns, proof-read by H. Andernach in December 1994
    (LEDA ref no. 24257). The other columns were added at CDS.
(End)                                         Patricia Bauer  [CDS]  18-Nov-1997