Analysis of the UV spectrum of three hot subdwarfs

Details Analysis of the UV spectrum of three hot subdwarfs Analysis of the UV spectrum of three hot subdwarfs

Apr 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980esasp.157..323r&link_type=abstract

The second European International Ultraviolet Explorer (IUE) Conference, held 26-28 March 1980 in Tübingen, West Germany. Edited

Astronomy and Astrophysics

Astronomy

6

Iue, O Stars, Subdwarf Stars, Ultraviolet Astronomy, Interstellar Extinction, Interstellar Matter, Photosphere, Radial Velocity, Stellar Atmospheres, Stellar Envelopes, Stellar Mass Ejection, Stellar Temperature

Scientific paper

International Ultraviolet Explorer high resolution observations of three O subdwarfs (BD + 37 deg 442, BD + 32 deg 1977, and BD + 48 deg 1777) were taken. The spectra are characterized by very high excitation photospheric lines. Intense interstellar lines are present, whose possible circumstellar origin is suggested in view of the absence of the 2200 A interstellar band.

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