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J/A+AS/139/483    Early-type gal. kinematics in compact groups (Bonfanti+, 1999)
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Kinematics of early-type galaxies in compact groups. HCG 67, HCG 74, and HCG 79
       Bonfanti, P., Simien, F., Rampazzo, R., Prugniel, P.
      <Astron. Astrophys. Suppl. Ser. 139, 483 (1999)>
      =1999A&AS..139..483B      (SIMBAD/NED BibCode)
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ADC_Keywords: Radial velocities ; Galaxies, rotation ; Velocity dispersion ;
              Clusters, galaxy
Keywords: galaxies: kinematics & dynamics - galaxies: interactions -
          galaxies: elliptical and lenticular, cD - galaxies: formation -
          galaxies: evolution

Abstract:
    We present measurements of stellar kinematics for seven early-type
    galaxies in HCG 67, HCG 74, and HCG 79. These data are aimed at
    studying the relation between the environment and the dynamics,
    structure and stellar content of early-type galaxies. In the present
    three groups, the kinematic features we observed cannot be associated
    unambiguously to physical interactions. Visible morphological
    peculiarities do not appear correlated with kinematical perturbations.

Objects:
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       RA   (2000)   DE       Designation(s)
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    13 49 11.3  -07 13 27.6   HCG 67a
    13 49 09.7  -07 13 54.3   HCG 67d
    15 19 24.7  +21 06 20.3   HCG 74a
    15 19 24.4  +20 53 23.4   HCG 74b
    15 59 11.4  +20 45 14.9   HCG 79a
    15 59 12.6  +20 45 47.1   HCG 79b
    15 59 10.9  +20 45 41.4   HCG 79c
    ----------------------------------------------------------

File Summary:
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  FileName      Lrecl  Records    Explanations
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ReadMe             80       .     This file
table3.dat         24       7     Main kinematical parameters from this study
table4.dat         38     182     Profiles of rotation and velocity dispersion
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See also:
   J/A+AS/122/521 : Kinematical data on early-type galaxies. I. (Simien+ 1997)
   J/A+AS/126/15  : Kinematical data on early-type galaxies. II. (Simien+ 1997)
   J/A+AS/126/519 : Kinematical data on early-type galaxies. III. (Simien+ 1997)
   J/A+AS/131/287 : Kinematical data on early-type galaxies. IV. (Simien+ 1998)

Byte-by-byte Description of file: table3.dat
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   Bytes Format  Units   Label     Explanations
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   1-  9  A9     ---     Name      Object identification
  10- 14  I5     km/s    V0hel     Heliocentric systemic velocity
  16- 17  I2     km/s  e_V0hel     Mean error on V0hel (rms)
  19- 21  I3     km/s    sigma0    Projected central velocity dispersion
  23- 24  I2     km/s  e_sigma0    Mean error on sigma0
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Byte-by-byte Description of file: table4.dat
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   Bytes Format  Units   Label    Explanations
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   1-  9  A9     ---     Name     Object identification
  11- 13  I3     deg     PA       Position angle of slit (1)
  15- 20  F6.1   arcsec  r        Radius (<0 and >0 on opposite semi-axes) (1)
  22- 26  I5     km/s    Vrot     ?=999 Proj. mean stellar rotation velocity (2)
  28- 30  I3     km/s  e_Vrot     ?=999 Mean error on Vrot
  32- 34  I3     km/s    sigma    ?=999 Projected velocity dispersion (2)
  36- 38  I3     km/s  e_sigma    ?=999 Mean error on sigma
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Note (1): Rotation and dispersion velocities are projected along the line of
           sight; rotation values are with respect to the point r=0 of the
           component whose identification is given in bytes 1-9.
Note (2): For HCG67a, HCG79a, and HCG79b, PA has been shifted +180 degrees with
           respect to the printed version, in order to conform to the convention
           used by Simien & Prugniel (1997, Cat. <J/A+AS/126/519>), which is
           recalled below.
           PA (North --> East) is in the range [0, 360[, and:
           - for 0<PA<180, r<0 corresponds to the eastern side of the galaxy,
           - for 180<PA<360, r<0 corresponds to the western side,
           - and for PA=0, r<0 is to the North.
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Acknowledgements: Francois Simien <fs@cumulus.univ-lyon1.fr>
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(End)                                         Patricia Bauer [CDS]   19-Oct-1999