An equatorial ultra iron-poor star identified in BOSS

We report the discovery of SDSS J131326.89−001941.4, an ultra iron-poor red giant star ([Fe/H] ≃ −4.3) with a very high carbon abundance ([C/Fe] ≃ +2.5). This object is the fifth star in this rare class, and the combination of a fairly low effective temperature (Teff ≃ 5300 K), which enhances line a...

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Veröffentlicht in:	Astronomy and astrophysics (Berlin) 2015-07, Vol.579, p.A98
Hauptverfasser:	Allende Prieto, C., Fernández-Alvar, E., Aguado, D. S., González Hernández, J. I., Rebolo, R., Lee, Y. S., Beers, T. C., Rockosi, C. M., Ge, J.
Format:	Artikel
Sprache:	eng
Schlagworte:	Abundance Astronomy Asymptotic properties Carbon Galaxy: formation Galaxy: halo Iron Red giant stars Sky surveys (astronomy) Stars stars: abundances stars: fundamental parameters stars: Population III
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