Physics Colloquium - Spring 2005 - Mapping the Atmosphere of VV Cephei with the Hubble Space Telescope
Dept of Physics & Astronomy
University of Maine, Orono, Maine
Presents
Wendy Hagen Bauer
Wellesley College
Mapping the Atmosphere of VV Cephei with the Hubble Space Telescope
VV Cephei is a binary system consisting of an M supergiant with an extensive atmosphere and wind, and a hot companion, probably a main-sequence B star. Every 20 years the small, hot component goes into eclipse behind the M supergiant, and we can use its orbital motion to map out the structure of the M supergiant's chromosphere and wind. I will show spectra obtained during total eclipse and egress from eclipse with the Hubble Space Telescope and discuss what they have taught us about the supergiant's chromosphere and wind.
Friday, January 28th, 2005
3:10 pm
140 Bennett Hall
Refreshments will follow in Rm. 114, Bennett Hall
Back to Physics Colloquium - Spring 2005
