A new extensive library of PHOENIX stellar atmospheres and synthetic spectra

T. O. Husser; S. Wende-Von Berg; S. Dreizler; D. Homeier; A. Reiners; T. Barman; P. H. Hauschildt

doi:10.1051/0004-6361/201219058

A new extensive library of PHOENIX stellar atmospheres and synthetic spectra

T. O. Husser, S. Wende-Von Berg, S. Dreizler, D. Homeier, A. Reiners, T. Barman, P. H. Hauschildt

Research output: Contribution to journal › Article › peer-review

1265 Scopus citations

Abstract

Aims. We present a new library of high-resolution synthetic spectra based on the stellar atmosphere code PHOENIX that can be used for a wide range of applications of spectral analysis and stellar parameter synthesis. Methods. The spherical mode of PHOENIX was used to create model atmospheres and to derive detailed synthetic stellar spectra from them. We present a new self-consistent way of describing micro-turbulence for our model atmospheres. Results.The synthetic spectra cover the wavelength range from 500 Å to 5.5 μm with resolutions of R = 500 000 in the optical and near IR, R = 100 000 in the IR and δλ = 0.1Å in the UV. The parameter space covers 2300 K = T_eff = 12 000K, 0.0 = log g = +6.0,-4.0 = [Fe/H] ≤ +1.0, and-0.2 ≤ [α/Fe] = +1.2. The library is a work in progress and we expect to extend it up to T_eff = 25 000K.

Original language	English (US)
Article number	A6
Journal	Astronomy and astrophysics
Volume	553
DOIs	https://doi.org/10.1051/0004-6361/201219058
State	Published - 2013
Externally published	Yes

Keywords

Convection
Stars: atmospheres
Stars: late-type

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.1051/0004-6361/201219058

Cite this

@article{5eb80e1194cc42f8b246812467c1e089,

title = "A new extensive library of PHOENIX stellar atmospheres and synthetic spectra",

abstract = "Aims. We present a new library of high-resolution synthetic spectra based on the stellar atmosphere code PHOENIX that can be used for a wide range of applications of spectral analysis and stellar parameter synthesis. Methods. The spherical mode of PHOENIX was used to create model atmospheres and to derive detailed synthetic stellar spectra from them. We present a new self-consistent way of describing micro-turbulence for our model atmospheres. Results.The synthetic spectra cover the wavelength range from 500 {\AA} to 5.5 μm with resolutions of R = 500 000 in the optical and near IR, R = 100 000 in the IR and δλ = 0.1{\AA} in the UV. The parameter space covers 2300 K = Teff = 12 000K, 0.0 = log g = +6.0,-4.0 = [Fe/H] ≤ +1.0, and-0.2 ≤ [α/Fe] = +1.2. The library is a work in progress and we expect to extend it up to Teff = 25 000K.",

keywords = "Convection, Stars: atmospheres, Stars: late-type",

author = "Husser, {T. O.} and {Wende-Von Berg}, S. and S. Dreizler and D. Homeier and A. Reiners and T. Barman and Hauschildt, {P. H.}",

note = "Funding Information: We warmly thank the anonymous referee for his/her comments that helped to improve this publication significantly. Derek Homeier has been funded under the Labex Lio programme of the Universit{\'e} Claude Bernard Lyon 1, the Agence Nationale de la Recherche (ANR), and the Programme National de Physique Stellaire (PNPS) of CNRS (INSU). Numerical calculations were performed at the Gesellschaft f{\"u}r Wissenschaftliche Datenverarbeitung G{\"o}ttingen.",

year = "2013",

doi = "10.1051/0004-6361/201219058",

language = "English (US)",

volume = "553",

journal = "Astronomy and astrophysics",

issn = "0004-6361",

publisher = "EDP Sciences",

}

TY - JOUR

T1 - A new extensive library of PHOENIX stellar atmospheres and synthetic spectra

AU - Husser, T. O.

AU - Wende-Von Berg, S.

AU - Dreizler, S.

AU - Homeier, D.

AU - Reiners, A.

AU - Barman, T.

AU - Hauschildt, P. H.

N1 - Funding Information: We warmly thank the anonymous referee for his/her comments that helped to improve this publication significantly. Derek Homeier has been funded under the Labex Lio programme of the Université Claude Bernard Lyon 1, the Agence Nationale de la Recherche (ANR), and the Programme National de Physique Stellaire (PNPS) of CNRS (INSU). Numerical calculations were performed at the Gesellschaft für Wissenschaftliche Datenverarbeitung Göttingen.

PY - 2013

Y1 - 2013

N2 - Aims. We present a new library of high-resolution synthetic spectra based on the stellar atmosphere code PHOENIX that can be used for a wide range of applications of spectral analysis and stellar parameter synthesis. Methods. The spherical mode of PHOENIX was used to create model atmospheres and to derive detailed synthetic stellar spectra from them. We present a new self-consistent way of describing micro-turbulence for our model atmospheres. Results.The synthetic spectra cover the wavelength range from 500 Å to 5.5 μm with resolutions of R = 500 000 in the optical and near IR, R = 100 000 in the IR and δλ = 0.1Å in the UV. The parameter space covers 2300 K = Teff = 12 000K, 0.0 = log g = +6.0,-4.0 = [Fe/H] ≤ +1.0, and-0.2 ≤ [α/Fe] = +1.2. The library is a work in progress and we expect to extend it up to Teff = 25 000K.

AB - Aims. We present a new library of high-resolution synthetic spectra based on the stellar atmosphere code PHOENIX that can be used for a wide range of applications of spectral analysis and stellar parameter synthesis. Methods. The spherical mode of PHOENIX was used to create model atmospheres and to derive detailed synthetic stellar spectra from them. We present a new self-consistent way of describing micro-turbulence for our model atmospheres. Results.The synthetic spectra cover the wavelength range from 500 Å to 5.5 μm with resolutions of R = 500 000 in the optical and near IR, R = 100 000 in the IR and δλ = 0.1Å in the UV. The parameter space covers 2300 K = Teff = 12 000K, 0.0 = log g = +6.0,-4.0 = [Fe/H] ≤ +1.0, and-0.2 ≤ [α/Fe] = +1.2. The library is a work in progress and we expect to extend it up to Teff = 25 000K.

KW - Convection

KW - Stars: atmospheres

KW - Stars: late-type

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JO - Astronomy and astrophysics

JF - Astronomy and astrophysics

M1 - A6

ER -

A new extensive library of PHOENIX stellar atmospheres and synthetic spectra

Abstract

Keywords

ASJC Scopus subject areas

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