SIMBAD references

2019MNRAS.490.2241A - Mon. Not. R. Astron. Soc., 490, 2241-2253 (2019/December-1)

The Pristine survey - VI. The first three years of medium-resolution follow-up spectroscopy of Pristine EMP star candidates.

AGUADO D.S., YOUAKIM K., GONZALEZ HERNANDEZ J.I., ALLENDE PRIETO C., STARKENBURG E., MARTIN N., BONIFACIO P., ARENTSEN A., CAFFAU E., PERALTA DE ARRIBA L., SESTITO F., GARCIA-DIAS R., FANTIN N., HILL V., JABLONCA P., JAHANDAR F., KIELTY C., LONGEARD N., LUCCHESI R., SANCHEZ-JANSSEN R., OSORIO Y., PALICIO P.A., TOLSTOY E., WILSON T.G., COTE P., KORDOPATIS G., LARDO C., NAVARRO J.F., THOMAS G.F. and VENN K.

Abstract (from CDS):

We present the results of a 3-yr long, medium-resolution spectroscopic campaign aimed at identifying very metal-poor stars from candidates selected with the CaHK, metallicity-sensitive Pristine survey. The catalogue consists of a total of 1007 stars, and includes 146 rediscoveries of metal-poor stars already presented in previous surveys, 707 new very metal-poor stars with [Fe/H] < -2.0, and 95 new extremely metal-poor stars with [Fe/H] < -3.0. We provide a spectroscopic [Fe/H] for every star in the catalogue, and [C/Fe] measurements for a subset of the stars (10 per cent with [Fe/H] < -3 and 24 per cent with -3 < [Fe/H] < -2) for which a carbon determination is possible, contingent mainly on the carbon abundance, effective temperature and signal-to-noise ratio of the stellar spectra. We find an average carbon enhancement fraction ([C/Fe] >= +0.7) of 41 ± 4 per cent for stars with -3 < [Fe/H] < -2 and 58 ± 14 per cent for stars with [Fe/H] < -3, and report updated success rates for the Pristine survey of 56 per cent and 23 per cent to recover stars with [Fe/H] < -2.5 and < -3, respectively. Finally, we discuss the current status of the survey and its preparation for providing targets to upcoming multi-object spectroscopic surveys such as William Herschel Telescope Enhanced Area Velocity Explorer.

Abstract Copyright: © 2019 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): stars: abundances - Galaxy: evolution - Galaxy: formation - Local Group - dark ages, reionization, first stars - early Universe

VizieR on-line data: <Available at CDS (J/MNRAS/490/2241): table4.dat>

Nomenclature: Table 4: Pristine JDDD.dddd+DD.dddd N=1007.

Errata: erratum vol. 491, p. 5299 (2020)

Simbad objects: 1012

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