J/ApJS/169/430 Atmospheric parameters of 1907 metal-rich stars (Robinson+, 2007)
The N2K consortium. VII. Atmospheric parameters of 1907 metal-rich stars: finding planet-search targets. Robinson S.E., Ammons S.M., Kretke K.A., Strader J., Wertheimer J.G., Fischer D.A., Laughlin G. <Astrophys. J. Suppl. Ser., 169, 430-438 (2007)> =2007ApJS..169..430R
ADC_Keywords: Stars, late-type ; Abundances ; Stars, nearby Keywords: methods: statistical ; planetary systems ; stars: abundances Abstract: We report high-precision atmospheric parameters for 1907 stars in the N2K low-resolution spectroscopic survey, designed to identify metal-rich FGK dwarfs likely to harbor detectable planets. Of these stars, 284 are in the ideal temperature range for planet searches, Teff≤6000K, and have a 10% or greater probability of hosting planets based on their metallicities. This catalog contains measurements of [Fe/H] (sigma[Fe/H]=0.07dex), Teff(sigma_Teff=82K), and logg (sigmalogg=0.13dex). Atmospheric parameters are derived from Lick index measurements, as described in Robinson et al. (2006, Cat. J/ApJ/637/1102). Lick indices are measured from spectra obtained with the GCAM spectrograph on the 2.1m telescope at KPNO. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table2.dat 90 1964 Lick indices for program targets and test stars table3.dat 92 1907 Stellar atmospheric parameters
See also: I/239 : The Hipparcos and Tycho Catalogues (ESA 1997) J/ApJS/159/141 : Spectroscopic properties of cool stars. I. (Valenti+, 2005) J/ApJ/637/1102 : Lick indices for metal-rich stars (Robinson+, 2006) Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 6 I6 --- HIP The Hipparcos number (Cat. I/239/hip_main) 8 A1 --- VF05 [*] Valenti & Fischer (2005, Cat. J/ApJS/159/141) code (1) 10- 15 F6.3 --- Ca4227 Lick Ca4227 index 17- 22 F6.3 0.1nm G4300 Lick G4300 index in Angstroms 24- 29 F6.3 0.1nm HgF Lick HγF index (4342Å) in Angstroms 31- 36 F6.3 0.1nm Fe4383 Lick Fe4383 index in Angstroms 38- 43 F6.3 0.1nm Fe4531 Lick Fe4531 index in Angstroms 45- 50 F6.3 0.1nm Fe4668 Lick Fe4668 index in Angstroms 52- 56 F5.3 0.1nm Hb Lick Hβ index (4861Å) in Angstroms 58- 63 F6.3 0.1nm Fe5015 Lick Fe5015 index in Angstroms 65- 70 F6.3 mag Mg2 Lick Mg2 index (5184-5196Å) 72- 77 F6.3 0.1nm Mgb Lick Mg b index (5160-5192Å) in Angstroms 79- 84 F6.3 0.1nm Fe5270 Lick Fe5270 index in Angstroms 86- 90 F5.3 0.1nm NaD Lick Na D index (5895Å) in Angstroms
Note (1): '*' means that the star is in common with VF05 (Valenti & Fischer J/ApJS/159/141), used to test calibrations of Paper 1 (Robinson et al., Cat. J/ApJ/637/1102).
Byte-by-byte Description of file: table3.dat
Bytes Format Units Label Explanations
1- 6 I6 --- HIP The Hipparcos (I/239) number 8- 18 A11 --- SpType MK spectral type from SIMBAD 20- 23 I4 K Teff Effective temperature 25 A1 --- f_Teff [b] Teff out of tested range (1) 27- 31 F5.2 [Sun] [Fe/H] Metallicity 33 A1 --- f_[Fe/H] [b] [Fe/H] out of tested range (1) 35- 38 F4.2 [cm/s2] log(g) Log of the surface gravity 40 A1 --- f_log(g) [b] log(g) out of tested range (1) 42 A1 --- Kc [*] Known component code (2) 44 A1 --- Oc [*] Observed component code (3) 46- 92 A47 --- Comm Additional comment
Note (1): 'b' means that the atmospheric parameter is out of tested range of Lick Indices calibration: 4100K<Teff<6400K, -0.95dex<[Fe/H]<0.5dex, 4.0dex<log(g)<5.1dex. Note (2): '*' means that the star is known to be a member of a binary or multiple system. Multiplicity information from SIMBAD database. Note (3): '*' means that a possible companion star was observed on the 2.1m telescope slit camera. Slit width 1.3", slit length 5.2".
Acknowledgements: S.E. Robinson, ser(at)ucolick.org References: Fischer et al., Paper I 2005ApJ...620..481F Sato et al., Paper II 2005ApJ...633..465S Fischer et al., Paper III 2006ApJ...637.1094F Ammons et al., Paper IV 2006ApJ...638.1004A Robinson et al., Paper V 2006ApJ...637.1102R, Cat. J/ApJ/637/1102 Johnson et al., Paper VI 2006ApJ...647..600J
(End) Greg Schwarz [AAS], Patricia Vannier [CDS] 10-Apr-2007
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