Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1975
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975ucla.rept.....p&link_type=abstract
Final Technical Report, 1 May 1974 - 31 Dec. 1975 California Univ., Los Angeles. Dept. of Astronomy.
Astronomy and Astrophysics
Astronomy
Astronomical Spectroscopy, Binary Stars, Shell Stars, Stellar Spectra, Computer Programs, Electromagnetic Absorption, Far Ultraviolet Radiation, Interstellar Matter, Oao 3, Photosphere, Stellar Envelopes, Ultraviolet Spectra
Scientific paper
All three stars showed rather complicated spectra, which require a very detailed spectroscopic analysis. The far UV spectrum of Beta Lyrae is clearly peculiar, with a multitude of emission lines not observed on any other star so far scanned with Copernicus. This made this star at once the most interesting and also, in a sense, easier to study. The other two stars display a spectrum rich in absorption lines, some of them being fairly broad (as expected for photospheric lines of rapidly rotating objects), some sharp. The later were clearly non-photospheric lines. An attempt was made to distinguish the circumstellar from the interstellar components.
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