Metal-poor solar-type stars spectroscopy and masses (Sousa+, 2011)

Bibcode
2011yCat..35269099S
Sousa, S. G.; Santos, N. C.; Israelian, G.; Lovis, C.; Mayor, M.; Silva, P. B.; Udry, S.
Referencia bibliográfica

VizieR On-line Data Catalog: J/A+A/526/A99. Originally published in: 2011A&A...526A..99S

Fecha de publicación:
1
2011
Número de autores
7
Número de autores del IAC
0
Número de citas
0
Número de citas referidas
0
Descripción
The stellar parameters were determined using an LTE analysis based on equivalent widths (EW) of iron lines and by imposing excitation and ionization equilibrium. The ARES code (that can be downloaded at http://www.astro.up.pt/~sousasag/ares ) was used to allow automatic and systematic derivation of the stellar parameters. Precise stellar parameters and metallicities were obtained for 97 low metal-content stars. We also present the derived masses, luminosities, and new parallaxes estimations based on the derived parameters, and compare our spectroscopic parameters with an infra-red flux method calibration to check the consistency of our method in metal poor stars. Both methods seems to give the same effective temperature scale. (3 data files).
Tipo
Sin árbitro
Espectroscopia
Fotometría

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