Journal article
Non-local thermodynamic equilibrium stellar spectroscopy with 1D and 〈3D〉 models. II. Chemical properties of the galactic metal-poor disk and the halo
- Abstract:
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From exploratory studies and theoretical expectations it is known that simplifying approximations in spectroscopic analysis (local thermodynamic equilibrium (LTE), 1D) lead to systematic biases of stellar parameters and abundances. These biases depend strongly on surface gravity, temperature and, in particular, for LTE versus non-LTE (NLTE), on metallicity of the stars. Here we analyze the [Mg/Fe] and [Fe/H] plane of a sample of 326 stars, comparing LTE and NLTE results obtained using 1D hyd...
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- Publication status:
- Published
- Peer review status:
- Peer reviewed
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(Preview, Version of record, pdf, 1.1MB, Terms of use)
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- Publisher copy:
- 10.3847/1538-4357/aa88b5
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Funding
Bibliographic Details
- Publisher:
- American Astronomical Society
- Journal:
- Astrophysical Journal More from this journal
- Volume:
- 847
- Issue:
- 1
- Pages:
- 16-16
- Publication date:
- 2017-09-20
- Acceptance date:
- 2017-08-10
- DOI:
- EISSN:
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1538-4357
- ISSN:
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0004-637X
Item Description
- Keywords:
- Pubs id:
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pubs:822301
- UUID:
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uuid:916234e7-aed9-47fd-a278-be2f30b8e898
- Local pid:
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pubs:822301
- Source identifiers:
-
822301
- Deposit date:
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2018-04-11
Terms of use
- Copyright holder:
- American Astronomical Society
- Copyright date:
- 2017
- Notes:
- Copyright © 2017 The American Astronomical Society.
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