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The role of asymptotic giant branch stars in the chemical evolution of the Galaxy

Published online by Cambridge University Press:  30 December 2019

G. Tautvaišienė ,
C. Viscasillas Vázquez ,
V. Bagdonas ,
R. Smiljanic ,
A. Drazdauskas Open the ORCID record for A. Drazdauskas [Opens in a new window] ,
Š. Mikolaitis ,
R. Minkevičiėūtėė  and
E. Stonkutė
G. Tautvaišienė
Affiliation:
Institute of Theoretical Physics and Astronomy, Vilnius University, Sauletekio av. 3, 10257, Vilnius, Lithuania email: grazina.tautvaisiene@tfai.vu.lt
C. Viscasillas Vázquez
Affiliation:
Institute of Theoretical Physics and Astronomy, Vilnius University, Sauletekio av. 3, 10257, Vilnius, Lithuania email: grazina.tautvaisiene@tfai.vu.lt
V. Bagdonas
Affiliation:
Institute of Theoretical Physics and Astronomy, Vilnius University, Sauletekio av. 3, 10257, Vilnius, Lithuania email: grazina.tautvaisiene@tfai.vu.lt
R. Smiljanic
Affiliation:
Nicolaus Copernicus Astronomical Center, Polish Academy of Sciences, Bartycka 18, 00-716, Warsaw, Poland
A. Drazdauskas
Affiliation:
Institute of Theoretical Physics and Astronomy, Vilnius University, Sauletekio av. 3, 10257, Vilnius, Lithuania email: grazina.tautvaisiene@tfai.vu.lt
Š. Mikolaitis
Affiliation:
Institute of Theoretical Physics and Astronomy, Vilnius University, Sauletekio av. 3, 10257, Vilnius, Lithuania email: grazina.tautvaisiene@tfai.vu.lt
R. Minkevičiėūtėė
Affiliation:
Institute of Theoretical Physics and Astronomy, Vilnius University, Sauletekio av. 3, 10257, Vilnius, Lithuania email: grazina.tautvaisiene@tfai.vu.lt
E. Stonkutė
Affiliation:
Institute of Theoretical Physics and Astronomy, Vilnius University, Sauletekio av. 3, 10257, Vilnius, Lithuania email: grazina.tautvaisiene@tfai.vu.lt
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Abstract

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Asymptotic giant branch stars play an important role in enriching galaxies by s-process elements. Recent studies have shown that their role in producing s-process elements in the Galactic disc was underestimated and should be reconsidered. Based on high-resolution spectra we have determined abundances of neutron-capture elements in a sample of 310 stars located in the field and open clusters and investigated elemental enrichment patterns according to their age and mean galactocentric distances.

Keywords

stars: abundancesGalaxy: evolution
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 14 , Symposium S343: Why Galaxies Care About AGB Stars: A Continuing Challenge through Cosmic Time , August 2018 , pp. 510 - 511
Copyright
© International Astronomical Union 2019 

References

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