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J/A+A/406/L23     Solar-like oscillations in alpha Cen B        (Carrier+, 2003)
Solar-like oscillations in the K1 dwarf star alpha Cen B
    Carrier F., Bourban G.
   <Astron. Astrophys. 406, L23 (2003)>
   =2003A&A...406L..23C
ADC_Keywords: Stars, variable ; Radial velocities

Keywords: stars: individual: alpha Cen B - stars: oscillations


Abstract:
    The K1 dwarf alpha Cen B was observed with the CORALIE spectrograph on
    the 1.2-m Swiss telescope at La Silla in April 2003. Thirteen nights
    of observations have made it possible to collect 3626 radial velocity
    measurements with a standard deviation of 1.4m/s exhibiting a mean
    noise level in the amplitude spectrum of only 3.75cm/s. Twelve
    oscillation modes have been identified in the power spectrum between 3
    and 4.6mHz with amplitudes in the range 8.7 to 13.7cm/s and showing
    a regularity with a large separation of 161.1uHz.

Description:
    The table presents radial velocity monitoring of alpha Cen B. All
    observations were done using the CORALIE spectrograph mounted on the
    Swiss 1.2-m telescope at La Silla Observatory (ESO), Chile.
Objects:
    ----------------------------------------------------------
       RA     (2000)   DE        Designation(s)
    ----------------------------------------------------------
    14 39 35.08    -60 50 13.7   alpha Cen B = HD 128621
    ----------------------------------------------------------

File Summary:

       FileName      Lrecl  Records   Explanations

ReadMe            80        .   This file
rv.dat            26     3626   Radial velocities of alpha Cen B


See also:
 J/BaltA/10/481 : HIP visual binaries kinematics. I. (Bartkevicius+, 2001)


Byte-by-byte Description of file: rv.dat

   Bytes Format  Units  Label       Explanations

   1- 13  F13.5  d      JD          Julian Date
  15- 20  F6.3   m/s    RV          Radial velocity
  22- 26  F5.3   m/s    e_RV        Estimated standard deviation of RV


Acknowledgements: Fabien Carrier 

(End)                                        Patricia Bauer [CDS]    10-Jul-2003