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A new diagnostic for multiple populations: NGC 6388 as a test case

Published online by Cambridge University Press:  11 March 2020

Angela Bragaglia Open the ORCID record for Angela Bragaglia [Opens in a new window]  and
Eugenio Carretta Open the ORCID record for Eugenio Carretta [Opens in a new window]
Angela Bragaglia
Affiliation:
INAF – Osservatorio di Astrofisica e Scienza dello Spazio, via P. Gobetti 93/3, 40129 Bologna, Italy emails: [email protected], [email protected]
Eugenio Carretta
Affiliation:
INAF – Osservatorio di Astrofisica e Scienza dello Spazio, via P. Gobetti 93/3, 40129 Bologna, Italy emails: [email protected], [email protected]
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Abstract

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Recently, the sample size of stars with detailed, homogeneous abundances in the massive bulge Globular cluster NGC 6388 expanded to 185 giants. We use this wealth of data to present first results on its multiple stellar populations. In particular, i) we introduce a new diagnostic plot to survey the occurrence of very high temperature for H-burning in the first-generation polluters, and ii) we pinpoint a restricted temperature range reached by polluters at work in NGC 6388.

Keywords

Stars: abundancesglobular clusters: generalglobular clusters: individual (NGC 2808NGC 6388)
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 14 , Symposium S351: Star Clusters: From the Milky Way to the Early Universe , May 2019 , pp. 267 - 268
Copyright
© International Astronomical Union 2020

References

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