AAS Meeting #194 - Chicago, Illinois, May/June 1999
Session 66. Mira Variable Stars
Display, Wednesday, June 2, 1999, 10:00am-6:30pm, Southwest Exhibit Hall

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[66.03] Photometric Outbursts in Mira B

H. L. Chambers II (Southwest Baptist University), T. J. Moffett (Purdue University), T. G. Barnes III (McDonald Observatory)

Photoelectric photometry of Mira near minimum light show two outbursts of 0.6 mag on a two hour time scale. We construct a three component model for the photometry: Mira A (at minimum light), a white dwarf (Mira B), and accretion material surrounding Mira B. The time scale indicates that accretion processes surrounding Mira B are responsible for the outbursts rather than changes in the stellar wind of Mira A

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