Astronomy and Astrophysics – Astronomy
Scientific paper
Apr 1980
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980esasp.157..165v&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
2
Astronomical Photometry, Binary Stars, Infrared Astronomy, Iue, Ultraviolet Astronomy, X Ray Sources, Absorption Spectra, B Stars, Lyman Alpha Radiation, Stellar Envelopes, Variable Stars
Scientific paper
Coordinated ultraviolet, optical and infrared observations of the X-ray binary system Chi Per were made. During the observations, Chi Per was in a phase of rapidly increasing luminosity. The ultraviolet high resolution spectrum shows violet shifted broad absorption lines with the violet wings extending to -250/650 km/per sec. The double peaked H alpha line profile seems to be variable on time scale of days. An infrared excess probably due to an expanding envelope surrounding the OBe star, was observed.
Bianchi Luciana
Ferrari-Toniolo Marco
Giangrande A.
Grasdalen Gary
Kalv P.
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