The Evolutionary State of CEMP Stars
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The Evolutionary State of CEMP Stars. / Andersen, Johannes; Nordström, Birgitta; Olofsson, Hans.
Why Galaxies Care About AGB Stars : A Continuing Challenge through Cosmic Tim: IAU Symposium 343, 20-23 August 2018, Vienna, Austria. Cambridge University Press, 2019. s. 345-346 (Proceedings of the International Astronomical Union, Bind 14).Publikation: Bidrag til bog/antologi/rapport › Konferencebidrag i proceedings › Forskning › fagfællebedømt
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RIS
TY - GEN
T1 - The Evolutionary State of CEMP Stars
AU - Andersen, Johannes
AU - Nordström, Birgitta
AU - Olofsson, Hans
PY - 2019
Y1 - 2019
N2 - The standard scenario for the production of carbon-enhanced extremely metal-poor (CEMP) stars requires a more massive binary companion, which has evolved through the AGB stage and transferred carbon-rich material to the surface of the surviving, likewise extremely metal-poor (EMP) star. Evidently, the binary companion plays a key role in this process.In order to characterise the polluting star, if any, the stage of evolution of the observed star (whether RGB or AGB), and whether pulsations exist, must be known. The Gaia DR2 parallaxes and photometry should contain the answer.
AB - The standard scenario for the production of carbon-enhanced extremely metal-poor (CEMP) stars requires a more massive binary companion, which has evolved through the AGB stage and transferred carbon-rich material to the surface of the surviving, likewise extremely metal-poor (EMP) star. Evidently, the binary companion plays a key role in this process.In order to characterise the polluting star, if any, the stage of evolution of the observed star (whether RGB or AGB), and whether pulsations exist, must be known. The Gaia DR2 parallaxes and photometry should contain the answer.
KW - Galaxy: halo
KW - stars: AGB and post-AGB
KW - stars: carbon
KW - stars: distances
KW - stars: evolution
KW - stars: Population II
UR - http://www.scopus.com/inward/record.url?scp=85077313207&partnerID=8YFLogxK
U2 - 10.1017/S1743921318003812
DO - 10.1017/S1743921318003812
M3 - Article in proceedings
AN - SCOPUS:85077313207
T3 - Proceedings of the International Astronomical Union
SP - 345
EP - 346
BT - Why Galaxies Care About AGB Stars : A Continuing Challenge through Cosmic Tim
PB - Cambridge University Press
ER -
ID: 241094814