A non-LTE analysis of the spectra of two narrow lined main sequence stars in the SMC

I. Hunter; P. L. Dufton; R. S.I. Ryans; D. J. Lennon; W. R.J. Rolleston; I. Hubeny; T. Lanz

doi:10.1051/0004-6361:20042290

A non-LTE analysis of the spectra of two narrow lined main sequence stars in the SMC

I. Hunter, P. L. Dufton, R. S.I. Ryans, D. J. Lennon, W. R.J. Rolleston, I. Hubeny, T. Lanz

Steward Observatory

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

23 Scopus citations

Abstract

An analysis of high-resolution VLT/UVES spectra of two B-type main sequence stars, NGC 346-11 and AV 304, in the Small Magellanic Cloud (SMC), has been undertaken, using the non-LTE TLUSTY model atmospheres to derive the stellar parameters and chemical compositions of each star. The chemical compositions of the two stars are in reasonable agreement. Moreover, our stellar analysis agrees well with earlier analyses of H II regions. The results derived here should be representative of the current base-line chemical composition of the SMC interstellar medium as derived from B-type stars.

Original language	English (US)
Pages (from-to)	687-695
Number of pages	9
Journal	Astronomy and astrophysics
Volume	436
Issue number	2
DOIs	https://doi.org/10.1051/0004-6361:20042290
State	Published - Jun 2005

Keywords

Galaxies: individual: Small Magellanic Cloud
Stars: abundances
Stars: atmospheres
Stars: early-type

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

Access to Document

10.1051/0004-6361:20042290

Cite this

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title = "A non-LTE analysis of the spectra of two narrow lined main sequence stars in the SMC",

abstract = "An analysis of high-resolution VLT/UVES spectra of two B-type main sequence stars, NGC 346-11 and AV 304, in the Small Magellanic Cloud (SMC), has been undertaken, using the non-LTE TLUSTY model atmospheres to derive the stellar parameters and chemical compositions of each star. The chemical compositions of the two stars are in reasonable agreement. Moreover, our stellar analysis agrees well with earlier analyses of H II regions. The results derived here should be representative of the current base-line chemical composition of the SMC interstellar medium as derived from B-type stars.",

keywords = "Galaxies: individual: Small Magellanic Cloud, Stars: abundances, Stars: atmospheres, Stars: early-type",

author = "I. Hunter and Dufton, {P. L.} and Ryans, {R. S.I.} and Lennon, {D. J.} and Rolleston, {W. R.J.} and I. Hubeny and T. Lanz",

year = "2005",

month = jun,

doi = "10.1051/0004-6361:20042290",

language = "English (US)",

volume = "436",

pages = "687--695",

journal = "Astronomy and astrophysics",

issn = "0004-6361",

publisher = "EDP Sciences",

number = "2",

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TY - JOUR

T1 - A non-LTE analysis of the spectra of two narrow lined main sequence stars in the SMC

AU - Hunter, I.

AU - Dufton, P. L.

AU - Ryans, R. S.I.

AU - Lennon, D. J.

AU - Rolleston, W. R.J.

AU - Hubeny, I.

AU - Lanz, T.

PY - 2005/6

Y1 - 2005/6

N2 - An analysis of high-resolution VLT/UVES spectra of two B-type main sequence stars, NGC 346-11 and AV 304, in the Small Magellanic Cloud (SMC), has been undertaken, using the non-LTE TLUSTY model atmospheres to derive the stellar parameters and chemical compositions of each star. The chemical compositions of the two stars are in reasonable agreement. Moreover, our stellar analysis agrees well with earlier analyses of H II regions. The results derived here should be representative of the current base-line chemical composition of the SMC interstellar medium as derived from B-type stars.

AB - An analysis of high-resolution VLT/UVES spectra of two B-type main sequence stars, NGC 346-11 and AV 304, in the Small Magellanic Cloud (SMC), has been undertaken, using the non-LTE TLUSTY model atmospheres to derive the stellar parameters and chemical compositions of each star. The chemical compositions of the two stars are in reasonable agreement. Moreover, our stellar analysis agrees well with earlier analyses of H II regions. The results derived here should be representative of the current base-line chemical composition of the SMC interstellar medium as derived from B-type stars.

KW - Galaxies: individual: Small Magellanic Cloud

KW - Stars: abundances

KW - Stars: atmospheres

KW - Stars: early-type

UR - http://www.scopus.com/inward/record.url?scp=20544434136&partnerID=8YFLogxK

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U2 - 10.1051/0004-6361:20042290

DO - 10.1051/0004-6361:20042290

M3 - Article

AN - SCOPUS:20544434136

SN - 0004-6361

VL - 436

SP - 687

EP - 695

JO - Astronomy and astrophysics

JF - Astronomy and astrophysics

IS - 2

ER -

A non-LTE analysis of the spectra of two narrow lined main sequence stars in the SMC

Abstract

Keywords

ASJC Scopus subject areas

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SMC NGC 346-11 and AV 304 spectra

Cite this

A non-LTE analysis of the spectra of two narrow lined main sequence stars in the SMC

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Datasets

SMC NGC 346-11 and AV 304 spectra

Cite this