Asteroseismology of hot B subdwarf stars

S. Charpinet, V. Van Grootel, P. Brassard, G. Fontaine, E. M. Green, S. K. Randall

Research output: Chapter in Book/Report/Conference proceedingConference contribution

18 Scopus citations

Abstract

Non-radial pulsations in Extreme Horizontal Branch stars (also known as hot B subdwarfs or sdB stars) offer strong opportunities to study, through asteroseismology, the structure and internal dynamics of stars in this intermediate stage of stellar evolution. Most sdB stars directly descend from former red giants and are expected to evolve straight into white dwarfs after core helium exhaustion. They thus represent the most direct link between these two stages. Their properties should therefore reflect both the outcome of the core evolution of red giant stars and the initial state for a fraction of the white dwarfs. We review the status of this field after a decade of efforts to exploit both p-mode and g-mode pulsating sdB stars as asteroseismic laboratories. From the discoveries of these two classes of pulsators in 1997 and 2003, respectively, up to the current epoch of data gathering of unprecedented quality from space, a lot of progress has been made in this area and prospects for future achievements look very promising.

Original languageEnglish (US)
Title of host publication40th Liege International Astrophysical Colloquium. Ageing Low Mass Stars
Subtitle of host publicationFrom Red Giants to White Dwarfs, LIAC 2012
DOIs
StatePublished - 2013
Externally publishedYes
Event40th Liege International Astrophysical Colloquium. Ageing Low Mass Stars: From Red Giants to White Dwarfs, LIAC 2012 - Liege, Belgium
Duration: Jul 9 2012Jul 13 2012

Publication series

NameEPJ Web of Conferences
Volume43
ISSN (Print)2101-6275
ISSN (Electronic)2100-014X

Conference

Conference40th Liege International Astrophysical Colloquium. Ageing Low Mass Stars: From Red Giants to White Dwarfs, LIAC 2012
Country/TerritoryBelgium
CityLiege
Period7/9/127/13/12

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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