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

Aguado, David S.; Youakim, Kris; González Hernández, Jonay I.; Allende Prieto, Carlos; Starkenburg, Else; Martin, Nicolas; Bonifacio, Piercarlo; Arentsen, Anke; Caffau, Elisabetta; de Arriba, Luis Peralta; Sestito, Federico; Garcia-Diaz, Rafael; Fantin, Nicholas; Hill, Vanessa; Jablonca, Pascale; Jahandar, Farbod; Kielty, Collin; Longeard, Nicolas; Lucchesi, Romain; Sánchez-Janssen, Rubén; Osorio, Yeisson; Palicio, Pedro A.; Tolstoy, Eline; Wilson, Thomas G.; Côté, Patrick; Kordopatis, Georges; Lardo, Carmela; Navarro, Julio F.; Thomas, Guillaume F.; Venn, Kim

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学術論文

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

MPS-Authors

Aguado, David S.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Youakim, Kris
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

González Hernández, Jonay I.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Allende Prieto, Carlos
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Starkenburg, Else
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Martin, Nicolas
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Bonifacio, Piercarlo
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Arentsen, Anke
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Caffau, Elisabetta
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

de Arriba, Luis Peralta
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Sestito, Federico
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Garcia-Diaz, Rafael
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Fantin, Nicholas
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Hill, Vanessa
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Jablonca, Pascale
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Jahandar, Farbod
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Kielty, Collin
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Longeard, Nicolas
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Lucchesi, Romain
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Sánchez-Janssen, Rubén
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Osorio, Yeisson
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Palicio, Pedro A.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Tolstoy, Eline
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Wilson, Thomas G.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Côté, Patrick
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Kordopatis, Georges
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Lardo, Carmela
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Navarro, Julio F.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Thomas, Guillaume F.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Venn, Kim
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

External Resource

https://ui.adsabs.harvard.edu/abs/2019MNRAS.tmp.2271A
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引用

Aguado, D. S., Youakim, K., González Hernández, J. I., Allende Prieto, C., Starkenburg, E., Martin, N., Bonifacio, P., Arentsen, A., Caffau, E., de Arriba, L. P., Sestito, F., Garcia-Diaz, R., Fantin, N., Hill, V., Jablonca, P., Jahandar, F., Kielty, C., Longeard, N., Lucchesi, R., Sánchez-Janssen, R., Osorio, Y., Palicio, P. A., Tolstoy, E., Wilson, T. G., Côté, P., Kordopatis, G., Lardo, C., Navarro, J. F., Thomas, G. F., & Venn, K. (2019). The Pristine Survey - VI. The first three years of medium-resolution follow-up spectroscopy of Pristine EMP star candidates. Monthly Notices of the Royal Astronomical Society, 2271.

引用: https://hdl.handle.net/21.11116/0000-0005-D1F4-B

要旨

We present the results of a 3-year 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% with [Fe/H] < -3 and 24% with -3 < [Fe/H] < -2) for which a carbon determination is possible, contingent mainly on the carbon abundance, effective temperature and S/N of the stellar spectra. We find an average carbon enhancement fraction ([C/Fe] ≥ +0.7) of 41 ± 4% for stars with -3 < [Fe/H] < -2 and 58 ± 14% for stars with [Fe/H] < -3, and report updated success rates for the Pristine survey of 56 % and 23 % to recover stars with [Fe/H] < -2.5 and [Fe/H] < -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 WEAVE.