Eta Carinae's change of state: First new HST/NUV data since 2010, and the first new FUV since 2004
Abstract
During the past 15 years Eta Carinae has exhibited a critical phase in its recovery from the 19th century "Great Eruption." Dramatic changes in the ultraviolet brightness and spectrum between 1998 and 2010 indicated a surprisingly rapid increase in the UV flux of the central star and then a corresponding decrease in its mass-loss rate. We report the first UV photometry and spectra of Eta Carinae since 2010 and the first far-UV spectra in almost 10 years, obtained with the Hubble Space Telescope in September and November 2013. These measure the long-term secular changes prior to the onset of the anticipated spectroscopic event in August 2014.
- Publication:
-
American Astronomical Society Meeting Abstracts #223
- Pub Date:
- January 2014
- Bibcode:
- 2014AAS...22315109M