Lab Home | Phone | Search
Center for Nonlinear Studies  Center for Nonlinear Studies
 Colloquia Archive 
 Postdoc Seminars Archive 
 Quantum Lunch 
 CMS Colloquia 
 Q-Mat Seminars 
 Q-Mat Seminars Archive 
 Kac Lectures 
 Dist. Quant. Lecture 
 Ulam Scholar 
 Summer Research 
 Past Visitors 
 History of CNLS 
 Maps, Directions 
 CNLS Office 
Thursday, April 23, 2015
10:00 AM - 11:00 AM
CNLS Conference Room (TA-3, Bldg 1690)


Asteroseismic Analysis of Pulsating Stars

Dr. Przemyslaw Walczak
Dept. of Physics and Astronomy, University of Wroclaw (Poland)

Opacities are a key ingredient in stellar input physics. The values of the opacity coefficients affect the pulsational properties of models. These properties, such as periods and amplitudes of the oscillations, can be measured with high precision and provide constraints on the underlying coefficients. In this talk, I will present a general scheme of asteroseismic analysis, concentrating on the role of opacity in stellar structure, evolution and pulsation. It will be shown that relatively small differences in the opacities available in databases like the OP, OPAL and new Los Alamos OPLIB libraries can have quite a large impact on stellar models.

Host: Christopher Fontes