HST/GHRS Studies of zeta Aurigae. I. GHRS Observations of the 1993 Eclipse

Details HST/GHRS Studies of zeta Aurigae. I. GHRS Observations of the 1993 Eclipse HST/GHRS Studies of zeta Aurigae. I. GHRS Observations of the 1993 Eclipse

Dec 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993aas...183.1808b&link_type=abstract

American Astronomical Society, 183rd AAS Meeting, #18.08; Bulletin of the American Astronomical Society, Vol. 25, p.1321

Astronomy and Astrophysics

Astronomy

2

Scientific paper

The eclipsing binary zeta Aurigae (K4 Ib + B5 V) was observed using the Goddard High Resolution Spectrograph (GHRS) on Hubble Space Telescope (HST) at five epochs immediately preceeding and one following the April 1993 eclipse of the the hot B-type secondary by the K supergiant primary. A combination of Echelle-B and medium resolution G160M spectra were obtained at phases 0.78, 0.948, 0.957, 0.972, 0.978 and 1.13. These observations sample the absorption of the hot star's photospheric spectrum by the extended intervening cool star atmosphere. The GHRS spectra are presented and the circumstances of the individual observations are described. Fundamental parameters of the binary system derived from these data are discussed. This work is supported by HST grant GO-3626.01-91A to the University of Colorado.

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