Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993aas...183.5405s&link_type=abstract
American Astronomical Society, 183rd AAS Meeting, #54.05; Bulletin of the American Astronomical Society, Vol. 25, p.1377
Astronomy and Astrophysics
Astronomy
1
Scientific paper
Ultraviolet Spectra of Zeta Aurigae, obtained with the IUE satellite observatory prior to and through mid eclipse(phase .8-.05) are presented and interpreted according to the model proposed by Stencel and Chapman 1981. The profiles of various emission lines as a function of orbital phase through the eclipse are used to infer the conditions of the extended atmosphere and wind region of the K2II supergiant and the shocks resulting from the interaction of the B8V and K winds. The abundant profiles of Fe II are used to interpret the relatively cooler regions of the K star atmosphere while the profiles of C IV, Si IV and Fe III are used to reveal the structure of the hotter shock regions. The complex P Cygni profile of the Mg II resonance lines are identified as having components produced in the circumstellar, interstellar, and emission regions of the system. Ultraviolet Spectra of Zeta Aurigae, obtained with the IUE satellite observatory prior to and through mid eclipse(phase .8-.05) are presented and interpreted according to the model proposed by Stencel and Chapman 1981. The profiles of various emission lines as a function of orbital phase through the eclipse are used to infer the conditions of the extended atmosphere and wind region of the K2II supergiant and the shocks resulting from the interaction of the B8V and K winds. The abundant profiles of Fe II are used to interpret the relatively cooler regions of the K star atmosphere while the profiles of C IV, Si IV and Fe III are used to reveal the structure of the hotter shock regions. The complex P Cygni profile of the Mg II resonance lines are identified as having components produced in the circumstellar, interstellar, and emission regions of the system.
Potter Daniel E.
Stencel Robert E.
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