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J/A+A/603/A85       M67 stars radial velocities             (Brucalassi+, 2017)

Search for giant planets in M67. IV: survey results. Brucalassi A., Koppenhoefer J., Saglia R., Pasquini L., Ruiz M.T., Bonifacio P., Bedin L.R., Libralato M., Biazzo K., Melo C., Lovis C., Randich S. <Astron. Astrophys. 603, A85 (2017)> =2017A&A...603A..85B (SIMBAD/NED BibCode)
ADC_Keywords: Clusters, open ; Stars, late-type ; Stars, double and multiple ; Planets ; Radial velocities Keywords: techniques: radial velocities - planets and satellites: gaseous planets Abstract: We present the results of a seven-year-long radial velocity survey of a sample of 88 main-sequence and evolved stars to reveal signatures of Jupiter-mass planets in the solar-age and solar-metallicity open cluster M67. We analysed precise radial velocity (RV) measurements obtained with five different instruments. We conducted Monte Carlo simulations to estimate the occurrence rate of giant planets in our radial velocity survey. All the planets previously announced in this RV campaign with their properties are summarised: 3 hot Jupiters around the main-sequence stars YBP1194, YBP1514, and YBP401, and 1 giant planet around the evolved star S364. Two additional planet candidates around the stars YBP778 and S978 are also analysed. We discuss stars that exhibit large RV variability or trends individually. We find an occurrence of giant planets of ∼18.0% in a selected period-mass range. This frequency is slightly higher but consistent within the errors with the estimate for the field stars, leading to the general conclusion that open cluster and field statistics agree. However, we find that the rate of hot Jupiters in the cluster (∼5.7%) is substantially higher than in the field. Description: The catalogue is composed of radial velocity timeseries for 86 stars obtained with five instruments (HARPS, SOPHIE, HRS-HET, HARPSN, CORALIE). File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file stars.dat 62 86 List of studied stars rv/* 41 86 Individual radial velocities
See also: J/A+A/484/609 : BVI photometry and proper motions in M67 (Yadav+, 2008) J/A+A/545/A139 : Radial Velocities of stars observed in M67 (Pasquini+, 2012) Byte-by-byte Description of file: stars.dat
Bytes Format Units Label Explanations
1- 22 A22 --- Name Simbad name 25- 26 I2 h RAh Simbad Hour of Right Ascension (J2000.0) 28- 29 I2 min RAm Simbad Minute of Right Ascension (J2000.0) 31- 35 F5.2 s RAs Simbad Second of Right Ascension (J2000.0) 37 A1 --- DE- Simbad Sign of the Declination (J2000.0) 38- 39 I2 deg DEd Simbad Degree of Declination (J2000.0) 41- 42 I2 arcmin DEm Simbad Arcminute of Declination (J2000.0) 44- 47 F4.1 arcsec DEs Simbad Arcsecond of Declination (J2000.0) 49- 50 I2 --- Nmeas Number of radial velocities measurements 52- 62 A11 --- FileName Name of the file with radial velocities in rv subdirectory
Byte-by-byte Description of file: rv/*
Bytes Format Units Label Explanations
1- 16 F16.8 d BJD Barycentric Julian date 19- 25 F7.4 m/s RV Barycentric radial velocity (1) 27- 31 F5.3 m/s e_RV Uncertainty on RV 35- 41 A7 --- Inst Instrument used (2)
Note (1): An offset was added to the originally differential RV measurements to match the HARPS reference frame. Note (2): Instruments used are CORALIE, SOPHIE, HET, HARPS and HARPSN (for HARPS-N)
Acknowledgements: Anna Brucalassi, abrucala(at) Gaspare Lo Curto, locurto(at) References: Pasquini et al., Paper I 2012A&A...545A.139P, Cat. J/A+A/545/A139 Brucalassi et al., 2014A&A...561L...9B Brucalassi et al., Paper III 2016A&A...592L...1B
(End) Anna Brucalassi [ESO, Germany], Patricia Vannier [CDS] 09-Jun-2017
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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