The first IUE observations of LMC X-1 (star 32)

Details The first IUE observations of LMC X-1 (star 32) The first IUE observations of LMC X-1 (star 32)

May 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985a%26a...146..242b&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 146, no. 2, May 1985, p. 242-248.

Astronomy and Astrophysics

Astronomy

13

Early Stars, Iue, Spaceborne Astronomy, Stellar Spectra, Stellar Spectrophotometry, X Ray Binaries, Continuous Spectra, Emission Spectra, H Ii Regions, Interstellar Extinction, Line Spectra, Nebulae, Spectral Energy Distribution, Stellar Atmospheres, Stellar Models, Ultraviolet Spectra

Scientific paper

The first far UV observations of LMC X-1 (star 32) are presented. Form the UV continuum distribution the authors derive a value for the reddening towards star 32 of E(B-V) = 0.05 (galactic foreground extinction) plus 0.32 (extinction in the LMC). The dereddened stellar continuum can be reproduced by a model atmosphere with Teff = 35,000K (log g = 3.5), confirming the spectral type O7-9 III derived from the optical spectrum. Continuum emission is significantly detected from the surrounding H II region N 159, within a region of ≡5arcsec radius around the star, suggesting that stellar light is scattered by dust particles in the nebula.

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