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Recovering stellar population parameters via two full-spectrum fitting algorithms in the absence of model uncertainties

Abstract:

Using mock spectra based on Vazdekis/MILES library fitted within the wavelength region 3600-7350\AA, we analyze the bias and scatter on the resulting physical parameters induced by the choice of fitting algorithms and observational uncertainties, but avoid effects of those model uncertainties. We consider two full-spectrum fitting codes: pPXF and STARLIGHT, in fitting for stellar population age, metallicity, mass-to-light ratio, and dust extinction. With pPXF we find that both the bias in the...

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Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1093/mnras/sty1245

Authors


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Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Astrophysics
Role:
Author
ORCID:
0000-0002-1283-8420
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Funding agency for:
Cappellari, M
Grant:
UF140710
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Funding agency for:
Yan, R
Grant:
AST-1715898
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Funding agency for:
Ge, J
Mao, S
Lu, Y
Grant:
11473032
11390372
11690024
Publisher:
Oxford University Press
Journal:
Monthly Notices of the Royal Astronomical Society More from this journal
Volume:
478
Issue:
2
Pages:
2633–2649
Publication date:
2018-05-14
Acceptance date:
2018-05-10
DOI:
EISSN:
1365-2966
ISSN:
0035-8711
Pubs id:
pubs:847817
UUID:
uuid:da00515c-828e-400d-985b-b9cb7a18a48c
Local pid:
pubs:847817
Source identifiers:
847817
Deposit date:
2018-05-15

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