The extreme LMC supergiant HD 38489 - an optical and ultraviolet study

Details The extreme LMC supergiant HD 38489 - an optical and ultraviolet study The extreme LMC supergiant HD 38489 - an optical and ultraviolet study

Oct 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983apj...273..177s&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 273, Oct. 1, 1983, p. 177-186.

Astronomy and Astrophysics

Astronomy

15

B Stars, Magellanic Clouds, Stellar Evolution, Supergiant Stars, Ultraviolet Astronomy, Early Stars, Line Spectra, Stellar Envelopes, Stellar Mass Ejection, Stellar Models

Scientific paper

This investigation combines near-infrared, optical, and ultraviolet observations covering λλ1200 - 7000 to study the extremely luminous B star HD 38489 = S134. The star is found to be an evolved B star with Teff ≈ 25,000K, M ≡ 80 - 90 M_sun;, and R ≡ 70 R_sun;. The star is similar to the spectra of some of the superluminous stars of the Local Group and to η Car. There is evidence for nitrogen enrichment of the outer envelope and for a strong stellar wind.

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