Lab Home | Phone | Search
Center for Nonlinear Studies  Center for Nonlinear Studies
 Home 
 People 
 Current 
 Executive Committee 
 Postdocs 
 Visitors 
 Students 
 Research 
 Publications 
 Conferences 
 Workshops 
 Sponsorship 
 Talks 
 Seminars 
 Postdoc Seminars Archive 
 Quantum Lunch 
 Quantum Lunch Archive 
 P/T Colloquia 
 Archive 
 Ulam Scholar 
 
 Postdoc Nominations 
 Student Requests 
 Student Program 
 Visitor Requests 
 Description 
 Past Visitors 
 Services 
 General 
 
 History of CNLS 
 
 Maps, Directions 
 CNLS Office 
 T-Division 
 LANL 
 
Thursday, April 23, 2015
10:00 AM - 11:00 AM
CNLS Conference Room (TA-3, Bldg 1690)

Seminar

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