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J/A+A/533/A141     Stellar parameters for 582 HARPS FGK stars     (Sousa+, 2011)

Spectroscopic stellar parameters for 582 FGK stars in the HARPS volume limited sample. Revising the metallicity-planet correlation. Sousa S.G., Santos N.C., Israelian G., Mayor M., Udry S. <Astron. Astrophys. 533, A141 (2011)> =2011A&A...533A.141S
ADC_Keywords: Stars, fundamental ; Planets ; Spectroscopy ; Abundances, [Fe/H] Keywords: stars: fundamental parameters - planetary systems - stars: abundances - stars: statistics Abstract: To understand the formation and evolution of solar-type stars and planets in the solar neighborhood, we need to obtain their stellar parameters with high precision. We present a catalog of precise stellar parameters for low-activity FGK single stars in a volume-limited sample followed by the HARPS spectrograph in the quest to identify extra-solar planets. The spectroscopic analysis was completed assuming LTE with a grid of Kurucz atmosphere models and using the ARES code to perform an automatic measurement of the line equivalent widths. The results are compared with different independent methods and also with other values found in the literature for common stars. Both comparisons are consistent and illustrate the homogeneity of the parameters derived by our team. The derived metallicities of this sample reveal a somewhat different distribution for the present planet hosts, but still indicates the already known higher frequency of planets observed for the more metal-rich stars. We combine the results derived in this sample with the one from the CORALIE survey to present the largest homogeneous spectroscopic study of the metallicity-giant-planet relation using a total of 1830 stars. Description: Table 1 Stellar parameters and respective errors derived for the volume limited sample. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 127 582 Stellar parameters for the metal poor sample
See also: II/180 : uvby-beta photometry of metal-poor stars (Schuster+ 1989) J/A+A/314/191 : Metal-poor stars atmospheric parameters. I (Gratton+, 1996) J/A+A/350/955 : Metal-poor stars atmospheric parameters. II (Gratton+, 1999) J/A+A/356/238 : Metal-poor stars atmospheric parameters. III (Carretta+ 2000) J/MNRAS/325/931 : Metal-poor subdwarfs in the Hipparcos catalog (Reid+, 2001) J/ApJ/697/544 : Planets orbiting metal-poor dwarfs. II. (Sozzetti+, 2009) J/A+A/512/A47 : 3 stars with giant planets radial velocities (Santos+, 2010) J/A+A/526/A99 : Metal-poor solar-type stars spectros. & masses (Sousa+, 2011) J/A+A/526/A112 : Radial velocities of HARPS metal-poor sample (Santos+, 2011) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 9 A9 --- Name Star's identifier 11- 14 I4 K Teff Effective Temperature 16- 18 I3 K e_Teff Error on Teff (precision error) 20- 22 I3 K E_Teff Error on Teff (includes systematics error) 24- 27 F4.2 [cm/s2] logg Surface gravity 29- 32 F4.2 [cm/s2] e_logg Error on logg (precision error) 34- 37 F4.2 [cm/s2] E_logg Error on logg (includes systematics error) 39- 42 F4.2 km/s Vtur Turbulence speed ξ 44- 47 F4.2 km/s e_Vtur Error on Vtur 49- 53 F5.2 --- [Fe/H] Iron abundance [Fe/H] 55- 58 F4.2 --- e_[Fe/H] Error on [Fe/H] (precision error) 60- 63 F4.2 --- E_[Fe/H] Error on [Fe/H] (includes systematics error) 65- 67 I3 --- N1 Number of FeI lines used 69- 70 I2 --- N2 Number of FeII lines used 72- 77 F6.4 Msun M1 Estimation of the stellar mass using Hipparcos parallax 79- 85 F7.5 Msun e_M1 Error on M1 87- 91 F5.3 Msun M2 Estimation of the stellar mass using Padova Web interface 93- 97 F5.3 Msun e_M2 Error on M2 99-103 F5.2 mas plx Hipparcos parallax 105-108 F4.2 mas e_plx Error on Hipparcos parallax 110-116 F7.4 [Lsun] logL Luminosity (log scale) 118-123 F6.4 [Lsun] e_logL Error in luminosity (in log scale) 125-127 A3 --- pl? [yes/no ] "yes" or "no" for planet detected or not
Acknowledgements: Sergio G. Sousa, sousasag(at)
(End) Sergio Sousa [CAUP-Porto, Portugal], Patricia Vannier [CDS] 26-Aug-2011
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