Tracking Eta Car Through the 2009 Event

Details Tracking Eta Car Through the 2009 Event Tracking Eta Car Through the 2009 Event

Jan 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21715412m&link_type=abstract

American Astronomical Society, AAS Meeting #217, #154.12; Bulletin of the American Astronomical Society, Vol. 43, 2011

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Scientific paper

Eta Carinae's 2009 spectroscopic event showed significant differences with the two previous well-observed events in 1998.0 and 2003.5. Photometry and spectra gathered with HST and Gemini/GMOS in late 2008 and early 2009 show differences with past events including: 1. a much deeper minimum brightness during the 2009 event and 2. differences in the spatially resolved spectrum during the event that may indicate a significant change in the structure and physical parameters of the wind. Taken together with other data including the early return of X-rays after the event, we believe this represents a critical data point in understanding the nature and continued evolution of Eta Carinae.

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