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J/MNRAS/312/540     Redshift survey of intercluster galaxies   (Bardelli+, 2000)
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A study of the core of the Shapley Concentration -
 IV. Distribution of intercluster galaxies and supercluster properties.
    Bardelli S., Zucca E., Zamorani G., Moscardini L., Scaramella R.
   <Mon. Not. R. Astron. Soc. 312, 540 (2000)>
   =2000MNRAS.312..540B
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ADC_Keywords: Clusters, galaxy ; Redshifts ; Radial velocities
Keywords: galaxies: clusters: general - galaxies: distances and redshifts -
          cosmology: observations - large-scale structure of Universe.

Abstract:
    We present the results of a redshift survey of intercluster galaxies
    in the central region of the Shapley Concentration supercluster, aimed
    at determining the distribution of galaxies in between obvious
    overdensities. Our sample is formed by 442 new redshifts, mainly in
    the b_J_ magnitude range 17-18.8. Adding the data from our redshift
    surveys on the A3558 and A3528 complexes, which are close to the
    geometrical centre of this supercluster, we obtain a total sample of
    ~2000 radial velocities. The average velocity of the observed
    intercluster galaxies in the Shapley Concentration appears to be a
    function of their ({alpha}, {delta} position, and it can be fitted by
    a plane in the three dimensional space ({alpha}, {delta}, v): the
    distribution of the galaxy distances around the best-fitting plane is
    described by a Gaussian with dispersion 3.8h^-1^Mpc.

File Summary:
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 FileName   Lrecl  Records   Explanations
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ReadMe         80        .   This file
table2.dat     54      442   Redshift data for the intercluster sample
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See also:
   J/MNRAS/296/599 : A3558 complex redshifts (Bardelli+, 1998)
   J/MNRAS/320/387 : The A3528 complex (Bardelli+, 2001)
   J/A+AS/125/247  : Shapley Concentration galaxies velocities (Quintana+ 1997)

Byte-by-byte Description of file: table2.dat
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   Bytes Format Units   Label     Explanations
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   1-  3  I3    ---     Plate     Plate number
   5-  6  I2    h       RAh       Right ascension (2000)
   8-  9  I2    min     RAm       Right ascension (2000)
  11- 15  F5.2  s       RAs       Right ascension (2000)
      17  A1    ---     DE-       Declination sign (2000)
  18- 19  I2    deg     DEd       Declination (2000)
  21- 22  I2    arcmin  DEm       Declination (2000)
  24- 27  F4.1  arcsec  DEs       Declination (2000)
  29- 33  F5.2  mag     bJmag     b_J_ magnitude
  35- 39  I5    km/s    HRV       Heliocentric radial velocity
  41- 43  I3    km/s  e_HRV       rms uncertainty on HRV
  45- 49  A5    ---     Notes     Notes
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History: From MNRAS electronic version

References:
    Bardelli et al., Paper I     1994MNRAS.267..665B
    Bardelli et al., Paper II    1996A&A...305..435B
    Bardelli et al., Paper III   1998MNRAS.296..599B Cat. <J/MNRAS/296/599>
    Bardelli et al., Paper V     2001MNRAS.320..387B Cat. <J/MNRAS/320/387>
    Baldi et al.,    Paper VI    2001MNRAS.324..509B
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(End)                         James Marcout, Patricia Bauer [CDS]    31-May-2000