Spectroscopic classification of 42 large magellanic cloud OB stars: Selection of probes for the hot gaseous halo of the large magellanic cloud

Elizabeth G. Jaxon, Martín A. Guerrero, J. Chris Howk, Nolan R. Walborn, You Hua Chu, Bart P. Wakker

Research output: Contribution to journalArticlepeer-review

Abstract

Interstellar C IV absorption-line studies of the hot gaseous halo of the Large Magellanic Cloud (LMC) have been hindered by nonideal selections of early-type probe stars in regions where C+3 can be produced locally via photoionization, fast stellar winds, or supernovae. To observe stars outside such regions, precise spectral classifications of OB stars in the field are needed. Therefore, we have obtained medium-dispersion spectra of 42 early-type stars in the LMC that are distributed outside superbubbles or supergiant shells. The spectral classification of these stars is presented in this paper. Nineteen of these program stars have spectral types between B1 and O7 and are thus suitable probes for interstellar C IV absorption-line studies of the hot gaseous halo of the LMC.

Original languageEnglish (US)
Pages (from-to)1130-1139
Number of pages10
JournalPublications of the Astronomical Society of the Pacific
Volume113
Issue number787
DOIs
StatePublished - Sep 2001

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

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