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J/ApJ/708/1366            Radial velocities for 61 Vir             (Vogt+, 2010)
A super-Earth and two Neptunes orbiting the nearby Sun-like star 61 Virginis.
    Vogt S.S., Wittenmyer R.A., Butler R.P., O'Toole S., Henry G.W.,
    Rivera E.J., Meschiari S., Laughlin G., Tinney C.G., Jones H.R.A.,
    Bailey J., Carter B.D., Batygin K.
   <Astrophys. J., 708, 1366-1375 (2010)>
   =2010ApJ...708.1366V
ADC_Keywords: Stars, G-type ; Radial velocities ; Stars, double and multiple ;
              Planets
Keywords: astrobiology - planetary systems - stars: individual (61 Vir)


Abstract:
    We present precision radial velocity data that reveal a multiple
    exoplanet system orbiting the bright nearby G5V star 61 Virginis. Our
    4.6 years of combined Keck/HIRES and Anglo-Australian Telescope
    precision radial velocities indicate the hitherto unknown presence of
    at least three planets orbiting this well-studied star. These planets
    are all on low-eccentricity orbits with periods of 4.2, 38.0, and
    124.0 days, and projected masses (Msini) of 5.1, 18.2, and
    24.0M{earth}, respectively. Test integrations of systems consistent
    with the radial velocity data suggest that the configuration is
    dynamically stable.

Description:
    The HIRES spectrometer of the Keck I telescope and the UCLES
    spectrometer of the Anglo-Australian Telescope (AAT) have been used to
    monitor 61 Vir. A total of 126 AAT observations, dating from 2005
    April 21 to 2009 August 14, representing a time span of 1576 days,
    have been obtained. A total of 80 Keck observations dating from 2004
    December 29 to 2009 Aug 09, representing a data span of 1685 days,
    have also been obtained. Table 2 lists the complete set of 206 radial
    velocities for 61 Vir, corrected to the solar system barycenter.
Objects:
    ------------------------------------------------------------------
       RA   (2000)   DE     Designation(s)           (Rotation Period)
    ------------------------------------------------------------------
    13 18 24.3   -18 18 40  61 Vir = TYC 6116-1517-1 (P = 29d        )
    ------------------------------------------------------------------

File Summary:

       FileName      Lrecl  Records   Explanations

ReadMe            80        .   This file
table2.dat        26      206   Radial velocities for 61 Vir


See also:
 B/eso  : ESO Science Archive Catalog (ESO, 2012)
 B/mk   : Catalogue of Stellar Spectral Classifications (Skiff, 2010)
 B/cfht : Log of CFHT Exposures (CADC, 1979-)
 I/239  : The Hipparcos and Tycho Catalogues (ESA 1997)
 J/A+A/523/A91  : CoRoT/Exoplanet fields with MATISSE (Gazzano+, 2010)
 J/A+A/487/373  : Spectroscopic parameters of 451 HARPS-GTO stars (Sousa+, 2008)
 J/ApJS/168/297 : Stellar parameters of nearby cool stars (Takeda+, 2007)
 J/ApJS/162/207 : Radial velocities of solar-type stars (Abt+, 2006)
 J/ApJS/159/141 : Spectroscopic properties of cool stars. I. (Valenti+, 2005)
 J/A+A/423/517  : Velocities of Galactic disk late-type stars (Rocha-Pinto+,
                  2004)


Byte-by-byte Description of file: table2.dat

   Bytes Format Units   Label    Explanations

   1- 13  F13.5 d       JD       Julian date of observation center
  15- 19  F5.2  m/s     RV       Radial velocity
  21- 24  F4.2  m/s     e_RV     RV internal uncertainty
      26  A1    ---     Tel      [AK] Observatory (A: Anglo-Australian Telescope
                                 or K: Keck)


History:
    From electronic version of the journal
(End)                                     Emmanuelle Perret [CDS]    22-Feb-2012