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J/A+A/545/A139    Radial Velocities of stars observed in M67   (Pasquini+, 2012)
Search for giant planets in M67. I. Overview.
    Pasquini L., Brucalassi A., Ruiz M.T., Bonifacio P., Lovis C., Saglia R.,
    Melo C., Biazzo K., Randich S., Bedin L.R.
   <Astron. Astrophys. 545, A139 (2012)>
   =2012A&A...545A.139P
ADC_Keywords: Clusters, open ; Stars, double and multiple ; Planets ;
              Radial velocities
Keywords: planets and satellites: general -
          open clusters and associations: individual: M67 -
          techniques: radial velocities

Abstract:
    Precise stellar radial velocities are used to search for massive
    (Jupiter masses or higher) exoplanets around the stars of the open
    cluster M67.

    We observed a total of 88 main-sequence stars, subgiants, and giants
    all highly probable members of M67, using four telescopes and
    instrument combinations:
    the HARPS spectrograph at the ESO 3.6m, the SOPHIE spectrograph at
    OHP, the CORALIE spectrograph at the Euler Swiss telescope and the HRS
    spectrograph at Hobby Eberly Telescope.

    We investigate whether exoplanets are present by obtaining radial
    velocities with precisions as good as 10m/s.

Description:
    Table 1 lists the observed targets in M67; the stars B-V  colors; the
    apparent V magnitudes; the number of observations for each
    instruments; the total number of observations for each stars; the mean
    radial velocities values and the relative rms error.

    Table 2 lists the binary candidates in M67; the stars B-V colors, the
    apparent V magnitudes and the references to the original papers.

File Summary:

       FileName      Lrecl  Records   Explanations

ReadMe            80        .   This file
table1.dat        63       77   Observations number, mean radial velocities (RV)
                              and RV rms of the observed M67 stars
table2.dat        40      112   Binary candidates in M67 from this sample and
                              the literature


See also:
    J/A+A/484/609 : BVI photometry and proper motions in M67 (Yadav+, 2008)


Byte-by-byte Description of file: table1.dat

   Bytes Format Units   Label      Explanations

   1-  7  A7    ---     Name       Star Name (G1)
  10- 14  F5.3  mag     B-V        Star B-V color index
  17- 20  F4.1  mag     Vmag       V magnitude
  24- 25  I2    ---     Harps      Number of HARPS Observations
  29- 30  I2    ---     Sophie     ? Number of Sophie Observations
  34- 35  I2    ---     Coralie    ? Number of Coralie Observations
  39- 40  I2    ---     HET        ? Number of HET Observations
  45- 46  I2    ---     Tot        Total number of observations
  50- 55  F6.3  km/s    RV         Mean radial velocity
  59- 63  F5.3  km/s    e_RV       rms uncertainty on RV


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

   Bytes Format Units   Label     Explanations

       1  A1    ---     Flag      [*] * for binary candidate not confirmed
   2-  8  A7    ---     Name      Star Name (G1)
  11- 14  F4.2  mag     B-V       ? Star B-V color index
  18- 22  F5.2  mag     Vmag      V magnitude
  26- 40  A15   ---     Ref       References to the original papers (2)

Note (2): References as follows:
      I = Pasquini et al. (2011, Cat. J/A+A/526/A127)
     II = Pasquini et al. (2008A&A...489..677P)
    III = Pasquini et al. (1997A&A...325..535P)
     IV = Mathieu et al. (1990AJ....100.1859M)
      V = Latham et al. (2006, IAUJD 14, 8L)
     VI = Mathieu et al. (1986AJ.....92.1100M)
    VII = Our Sample
   VIII = Pasquini & Belloni (1998A&A...336..902P)
     IX = Van den Berg M. et al. (2004, Cat. J/A+A/418/509)
      X = Sandquist & Shertrone (2003AJ....125.2173S)
     XI = Belloni,Verbunt & Mathieu (1998A&A...339..431B)
    XII = Sandquist et al. (2003AJ....125..810S)


Global notes:

Note (G1): For object identifications:
     S = from Sanders (1977A&AS...27...89S), Cl* NGC 2682 Sand NNNNa
   YBP = from Yadav et al. (2008, Cat. J/A+A/484/609), Cl* NGC 2682 YBP NNNN


Acknowledgements:
    Anna Brucalassi, abrucala(at)mpe.mpg.de
(End)      Anna Brucalassi [MPE, Germany], Patricia Vannier [CDS]    16-Aug-2012