AAS 205th Meeting, 9-13 January 2005
Session 20 Variability of Eta Carinae
Poster, Monday, January 10, 2005, 9:20am-6:30pm, Exhibit Hall

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[20.04] Mysterious Transient Emission Features in Eta Carinae

J.C. Martin, K Davidson, R.M. Humphreys, K. Ishibashi (), Eta Carinae Treasury Project Team

HST/STIS observations for the \eta Carinae Hubble Treasury Project are providing unique insights into the nature of the mysterious 2003 spectroscopic event. These data have far better spatial resolution than ground-based spectroscopy, allowing separation of the star from nearby ejecta. We have found that many spectral features varied in novel ways. Some of them imply a strange set of physical conditions during the event. Others, whose behavior patterns are linked to the event, remain unidentified -- which is unusual in \eta Carinae's well-studied spectrum. Altogether, these results give fresh information which has not otherwise been obtainable. So far they have revealed at least as many new puzzles as answers to older questions.

If you would like more information about this abstract, please follow the link to http://etacar.umn.edu/~martin/aasjan05/. This link was provided by the author. When you follow it, you will leave the Web site for this meeting; to return, you should use the Back comand on your browser.

The author(s) of this abstract have provided an email address for comments about the abstract: martin@isis.spa.umn.edu

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Bulletin of the American Astronomical Society, 36 5
© 2004. The American Astronomical Society.