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J/A+AS/95/1    Dumb-bell galaxies in Southern Rich Clusters    (Gregorini+ 1992)
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Sample of dumb-bell galaxies in southern rich clusters
     Gregorini L., Vettolani G., de Ruiter H.R., Parma P.
    <Astron. Astrophys. Suppl. Ser. 95, 1 (1992)>
    =1992A&AS...95....1G
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ADC_Keywords: Clusters, galaxy; Positional data
Keywords: galaxies: clustering-galaxies: elliptical and lenticular, cD

Abstract:
    We present two optically selected samples of dumb-bell galaxies extracted
    from the southern extension of the Abell catalogue and we discuss the
    selection criteria. The first sample is a volume limited sample obtained
    by selecting the dumb-bell galaxies in all the 171 clusters within a
    comoving distance of 210/h Mpc, regardless of Bautz-Morgan classification.
    The second sample is constituted by dumb-bell systems belonging to the 381
    clusters of BM I or I-II type. From the latter sample it is not possible to
    extract a volume limited sample due to the selection effect present in the
    Bautz-Morgan classification of the southern Abell catalogue.

File Summary:
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 FileName      Lrecl     Records      Explanations
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ReadMe            80           .      this file
table1            43          17      dumb-bell systems identified with the
                                        brightest cluster member
table2            43          10      possible dumb-bell systems identified
                                        with the brightest cluster member
table3            43           6      dumb-bell systems identified with cluster
                                        members (not the brightest one)
table4            48          74      dumb-bell galaxies belonging to BM I and
                                        BM I-II clusters
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Byte-by-byte Description of file: table1 table2 table3
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 Bytes  Format    Unit     Label    Explanation
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  1-  4  I4       ---      Abell    [0,] Abell name
  7-  9  I3       Mpc      CODIST   comoving distance (alternative expression
                                      of the unit is "Mpc/(H0/100)" where H0
                                      denotes the Hubble constant)
     10  A1       ---      q_CODIST [*] the comoving distance is estimated
 13- 14  I2       h        RAh      right ascension (B1950) of the eastern
                                         component of the dumb-bell system
                                         (hours)
 16- 17  I2       min      RAm      right ascension (minutes)
 19- 22  F4.1     s        RAs      right ascension (seconds)
     25  A1       ---      DE-      [-]! declination sign
 26- 27  I2       deg      DEd      declination of the eastern component of the
                                      dumb-bell system (degrees)     (B1950)
 29- 30  I2       arcmin   DEm      declination (minutes)
 32- 33  I2       arcsec   DEs      declination (seconds)
 36- 39  F4.1     s        oRAs     [,0] increment of the second component in
                                      RAs
 41- 43  I3       arcsec   oDEs     increment of the second component in DEs
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Byte-by-byte Description of file: table4
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 Bytes  Format    Unit     Label    Explanation
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  1-  4  I4       ---      Abell    [0,]? Abell name
  7-  9  I3       Mpc      CODIST   []? comoving distance (alternative
                                      expression of the unit is "Mpc/(H0/100)"
                                      where H0 denotes the Hubble constant)
     10  A1       ---      q_CODIST [*] the comoving distance is estimated
 13- 14  I2       h        RAh      right ascension (B1950) of the eastern
                                      component of the dumb-bell system (hours)
 16- 17  I2       min      RAm      right ascension (minutes)
 19- 22  F4.1     s        RAs      right ascension (seconds)
     25  A1       ---      DE-      [-] declination sign
 26- 27  I2       deg      DEd      declination of the eastern component of
                                      the dumb-bell system (degrees)  (B1950)
 29- 30  I2       arcmin   DEm      declination (minutes)
 32- 33  I2       arcsec   DEs      declination (seconds)
 36- 39  F4.1     s        oRAs     [,0] increment of the second component in
                                      RAs
 41- 43  I3       arcsec   oDEs     increment of the second component in DEs
 46- 48  A3       ---      NOTE     [a-c,] 'a'= not the brightest cluster member
                                           'b'= possible dumb-bell
                                           'c'= triple system
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History:
    The files were forwarded to CDS by Heinz J. Andernach
    (courtesy L. Gregorini)
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(End)                                        Koichi Nakajima [CDS]   20-Nov-1993