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AAVSO and HST Observations of η Carinae

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M. D. Koppelman

J. C. Martin

Department of Astronomy, University of Minnesota, 116 Church Street S. E., Minneapolis, MN 55455

E. O. Waagen

AAVSO, 25 Birch Street, Cambridge, MA 02138

Presented at the 93rd Spring Meeting of the AAVSO, July 23, 2004; received November 23, 2004; accepted November 23, 2004

Abstract  Observations from the AAVSO and the Hubble Space Telescope (HST) of η Carinae are presented in comparison with other ground-based observations and in the context of the long-term brightening trend which started in the early 1900s. Our results are consistent with the idea put forth by others that there is a lowering of the continuous opacity in the dusty environment surrounding h Carinae which results in increased flux in optical wavelengths.

Link to ADS abstract, article and citation information