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LTE or non-LTE, that is the question: The NLTE chemical evolution of strontium in extremely metal-poor stars

Date

Authors

Hansen, C J

Bergemann, Maria

Cescutti, C

Francois, P

Arcones, A

Karakas, Amanda

Lind, Karin

Chiappini, C

Publisher

Springer

Abstract

Context. Strontium has proven itself to be one of the most important neutron-capture elements in the study of metal-poor stars. Thanks to the strong absorption lines of Sr, they can be detected even in the most metal-poor stars and also in low-resolution

Keywords

Keywords: Atomic data; Chemical evolution; Chemical tracers; Galactic chemical evolutions; Galaxy: evolution; Ionisation equilibria; Local thermodynamic equilibrium; Low resolution; Metal-poor star; Metallicities; Non-LTE; Production sites; Spectrum synthesis; Star Galaxy: evolution; Stars: abundances

URI

http://hdl.handle.net/1885/70954

Collections

ANU Research Publications

Source

Astronomy and Astrophysics

Type

Journal article

DOI

10.1051/0004-6361/201220584

Restricted until

2037-12-31

Downloads

File

Description

01_Hansen_LTE_or_non-LTE,_that_is_the_2013.pdf (522.22 KB)

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