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3D Hydrodynamical model stellar atmospheres of metal-poor red giants
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Astronomy and Space Physics. Uppsala University, Disciplinary Domain of Science and Technology, Physics, Astronomical observatory. Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Astronomy and Space Physics, Theoretical Astrophysics.
2005 (English)In: Proceedings of the International Astronomical Union, vol. 1: From Lithium to Uranium: Elemental Tracers of Early Cosmic Evolution, 2005, p. 247-248Conference paper, Published paper (Other academic)
Abstract [en]

We investigate the main differences between static 1D and 3D time-dependent model stellar atmospheres of red giants at very low metallicities. We focus in particular on the impact of 3D LTE spectral line formation on the derivation of elemental abundances for the extremely metal-poor ([Fe/H] ≈-5.3) red giant HE 0107-5240.
Place, publisher, year, edition, pages
2005. p. 247-248
Keywords [en]
Stars: late-type, stars: atmospheres, methods: numerical, hydrodynamics, line: formation, stars: abundances
National Category
Astronomy, Astrophysics and Cosmology
Identifiers
URN: urn:nbn:se:uu:diva-18401DOI: 10.1017/S1743921305005661ISBN: 13: 9780521851992 ISBN: 0 521 85199 8 (print)OAI: oai:DiVA.org:uu-18401DiVA, id: diva2:46173
Conference
Symposium S228
Available from: 2006-12-21 Created: 2006-12-21 Last updated: 2013-12-04Bibliographically approved

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Collet, Remo

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