RESEARCH
<< back
Mixed modes in red giants

Benoît Mosser
LESIA, Observatory of Paris

Abstract

The power of asteroseismology relies on the capability of global oscillations to infer the stellar structure. For evolved stars, we benefit from unique information directly carried out by mixed modes that probe their radiative cores. Large progress has been made for understanding the mixed-mode pattern. I will present the recent findings (period spacings, rotational splittings, coupling factors, mode widths, mode visibilities) and show how they can be used to deliver stringent tests for probing stellar interiors. These results, when expressed in terms of ensemble asteroseismology, help constraining stellar evolution.

2017 October 11, 13:30

IA/U.Porto
Centro de Astrofísica da Universidade do Porto (Auditorium)
Rua das Estrelas, 4150-762 Porto

Instituto de Astrofísica e Ciências do Espaço Universidade do Porto Faculdade de Ciências da Universidade de Lisboa
Fundação para a Ciência e a Tecnologia COMPETE 2020 PORTUGAL 2020 União Europeia