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Extraction of the Shell Spectrum of Epsilon Aurigae (*)

Published online by Cambridge University Press:  30 March 2016

Conrad Boehm  and
Steno Ferluga
Conrad Boehm
Affiliation:
Trieste Observatory, Via G.B.Tiepolo, 11, I 34131 Trieste, Italy
Steno Ferluga
Affiliation:
Trieste Univ., Astronomy dept., Via G.B. Tiepolo, 11, I 34131 Trieste, Italy

Abstract

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A sample of high-dispersion optical spectrograms of ε Aur,taken on different epochs before and during eclipse, has been processed by computer in order to extract the shell spectrum, produced by the eclipsing body. Using an uneclipsed spectrum as reference, the primary’s dominant contribution was removed, and this makes it possible for the first time to study the secondary body spectrum separately at all eclipse phases. As the first striking result, one finds that the internal regions of the extended eclipsing body are hotter than the outer zones.

Type
Joint Discussions
Information
Highlights of Astronomy , Volume 7: Highlights of Astronomy. As presented at the XIXth General Assembly of the IAU, 1985 , 1986 , pp. 201 - 204
Copyright
Copyright © Reidel 1986

Footnotes

(*)

Based on observations at the Observatoire de Haute Provence (OHP), processed at the ASTRONET pole of Trieste with the ELSPEC/11 software.

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