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 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:
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FileName Lrecl Records Explanations
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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
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See also:
J/A+A/484/609 : BVI photometry and proper motions in M67 (Yadav+, 2008)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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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
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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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)
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Note (2): References as follows:
I = Pasquini et al. (2011, Cat. J/A+A/526/A127)
II = Pasquini et al. (2008A&A...489..677P 2008A&A...489..677P)
III = Pasquini et al. (1997A&A...325..535P 1997A&A...325..535P)
IV = Mathieu et al. (1990AJ....100.1859M 1990AJ....100.1859M)
V = Latham et al. (2006, IAUJD 14, 8L)
VI = Mathieu et al. (1986AJ.....92.1100M 1986AJ.....92.1100M)
VII = Our Sample
VIII = Pasquini & Belloni (1998A&A...336..902P 1998A&A...336..902P)
IX = Van den Berg M. et al. (2004, Cat. J/A+A/418/509)
X = Sandquist & Shertrone (2003AJ....125.2173S 2003AJ....125.2173S)
XI = Belloni,Verbunt & Mathieu (1998A&A...339..431B 1998A&A...339..431B)
XII = Sandquist et al. (2003AJ....125..810S 2003AJ....125..810S)
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Global notes:
Note (G1): For object identifications:
S = from Sanders (1977A&AS...27...89S 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
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Acknowledgements:
Anna Brucalassi, abrucala(at)mpe.mpg.de
(End) Anna Brucalassi [MPE, Germany], Patricia Vannier [CDS] 16-Aug-2012