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Stellar Parameters, Chemical composition and Models of chemical evolution

Published online by Cambridge University Press:  07 March 2018

T. Mishenina ,
M. Pignatari ,
B. Côté ,
F.-K. Thielemann ,
C. Soubiran ,
N. Basak ,
T. Gorbaneva ,
S. A. Korotin ,
V. V. Kovtyukh  and
B. Wehmeyer
...Show all authors
T. Mishenina
Affiliation:
Astron. Obs., Odessa Natl. Univ., Shevchenko Park, 65014, Odessa, Ukraine email: tmishenina@ukr.net
M. Pignatari
Affiliation:
E.A. Milne Centre for Astrophys., Univ. of Hull, HU6 7RX, United Kingdom The NuGrid Collaboration, http://www.nugridstars.org Joint Inst. for Nuclear Astrophys. Center for the Evolution of the Elements, USA
B. Côté
Affiliation:
The NuGrid Collaboration, http://www.nugridstars.org Dep. of Phys. and Astron., Univ. of Victoria, Victoria, BC, V8W 2Y2, Canada Natl. Superconducting Cyclotron Lab., Michigan State Univ., East Lansing, MI, 48824, USA Joint Inst. for Nuclear Astrophys. Center for the Evolution of the Elements, USA
F.-K. Thielemann
Affiliation:
Dep. of Phys., Univ. of Basel, Klingelbergstrabe 82, 4056 Basel, Switzerland
C. Soubiran
Affiliation:
Lab. d'Astrophys. de Bordeaux, Univ. Bordeaux - CNRS, B18N, 33615 Pessac, France
N. Basak
Affiliation:
Astron. Obs., Odessa Natl. Univ., Shevchenko Park, 65014, Odessa, Ukraine email: tmishenina@ukr.net
T. Gorbaneva
Affiliation:
Astron. Obs., Odessa Natl. Univ., Shevchenko Park, 65014, Odessa, Ukraine email: tmishenina@ukr.net
S. A. Korotin
Affiliation:
Astron. Obs., Odessa Natl. Univ., Shevchenko Park, 65014, Odessa, Ukraine email: tmishenina@ukr.net Crimean Astrophys. Obs., Nauchny, 298409, Crimea
V. V. Kovtyukh
Affiliation:
Astron. Obs., Odessa Natl. Univ., Shevchenko Park, 65014, Odessa, Ukraine email: tmishenina@ukr.net
B. Wehmeyer
Affiliation:
Dep. of Phys., Univ. of Basel, Klingelbergstrabe 82, 4056 Basel, Switzerland
S. Bisterzo
Affiliation:
The NuGrid Collaboration, http://www.nugridstars.org INAF, Astrophys. Obs. Turin, Strada Oss. 20, I-10025 Pino Torinese (Turin), Italy B2FH Association, Turin, Italy
C. Travaglio
Affiliation:
The NuGrid Collaboration, http://www.nugridstars.org INAF, Astrophys. Obs. Turin, Strada Oss. 20, I-10025 Pino Torinese (Turin), Italy B2FH Association, Turin, Italy
B. K. Gibson
Affiliation:
E.A. Milne Centre for Astrophys., Univ. of Hull, HU6 7RX, United Kingdom Joint Inst. for Nuclear Astrophys. Center for the Evolution of the Elements, USA
C. Jordan
Affiliation:
E.A. Milne Centre for Astrophys., Univ. of Hull, HU6 7RX, United Kingdom Joint Inst. for Nuclear Astrophys. Center for the Evolution of the Elements, USA
A. Paul
Affiliation:
Dep. of Phys. and Astron., Univ. of Victoria, Victoria, BC, V8W 2Y2, Canada
C. Ritter
Affiliation:
The NuGrid Collaboration, http://www.nugridstars.org Joint Inst. for Nuclear Astrophys. Center for the Evolution of the Elements, USA
F. Herwig
Affiliation:
The NuGrid Collaboration, http://www.nugridstars.org Joint Inst. for Nuclear Astrophys. Center for the Evolution of the Elements, USA
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Abstract

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We present an in-depth study of metal-poor stars, based high resolution spectra combined with newly released astrometric data from Gaia, with special attention to observational uncertainties. The results are compared to those of other studies, including Gaia benchmark stars. Chemical evolution models are discussed, highlighting few puzzles that are still affecting our understanding of stellar nucleosynthesis and of the evolution of our Galaxy.

Keywords

stars: abundancesGalaxy: abundancesGalaxy: evolution
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 12 , Symposium S330: Astrometry and Astrophysics in the Gaia sky , April 2017 , pp. 331 - 332
Copyright
Copyright © International Astronomical Union 2018 

References

Bisterzo, S., Travaglio, C., Gallino, R., Wiescher, M. & Käppeler, F., 2014, ApJ, 787, 10 CrossRefGoogle Scholar
Côté, B., West, C., Heger, A. et al., 2016, MNRAS, 463, 3755 Google Scholar
Hughes, G. L., Gibson, B. K., Carigi, L. et al., 2008, MNRAS, 390, 1710 Google Scholar
Mishenina, T., Pignatari, M., Côté, B. et al. 2017, eprint arXiv:1705.03642 Google Scholar
Wehmeyer, B., Pignatari, M. & Thielemann, F.-K., 2015, MNRAS, 452, 1970 Google Scholar