Revised Parameter Estimates For The Most Metal-Poor Candidates In SDSS-I And SEGUE

Bibcode
2008AIPC..990..151K
DOI
10.1063/1.2905525
Krugler, Julie A.; Beers, T. C.; Lee, Y. S.; Sivarani, T.; Marsteller, B.; Wilhelm, R.; Allende Prieto, C.; Frebel, A.; Norris, J. E.; Johnson, J.; Ivans, I.; Yanny, B.; Rockosi, C.; Morrison, H.; Newberg, H. J.; Knapp, J.
Referencia bibliográfica

FIRST STARS III: First Stars II Conference. AIP Conference Proceedings, Volume 990, pp. 151-153 (2008).

Fecha de publicación:
3
2008
Número de autores
16
Número de autores del IAC
0
Número de citas
2
Número de citas referidas
1
Descripción
There are several hundred thousand R = 2000 stellar spectra reported in the final public release of the Sloan Digital Sky Survey (SDSS-I) and the continuing project SEGUE (Sloan Extension for Galactic Exploration and Understanding), which has completed roughly half of its scheduled set of observations to date. The stars in this sample were targeted for a wide variety of reasons, and hence do not represent a sample from which an unbiased metallicity distribution function (MDF) of stars in the halo or thick-disk populations may be drawn. However, there exist over 6500 stars with estimated metallicities [Fe/H]<-2.0 and effective temperatures in the range 4500 K
Tipo
Sin árbitro
Cartografiados del cielo
Estrellas de Población II
Formación estelar

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