Radial and Nonradial Pulsations in RCB and EHe-B Stars

Details Radial and Nonradial Pulsations in RCB and EHe-B Stars Radial and Nonradial Pulsations in RCB and EHe-B Stars

Jul 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008aspc..391...69s&link_type=abstract

Hydrogen-Deficient Stars ASP Conference Series, Vol. 391, proceedings of the conference held 17-21 September, 2007, at Eberhard

Astronomy and Astrophysics

Astronomy

2

Scientific paper

Most of the R Coronae Borealis (RCB) type stars and the Extreme Helium (EHe) B stars show periodic or semi-regular light and velocity variations caused by radial and nonradial stellar pulsations. These pulsations are excited by the kappa-mechanism and the strange-mode instability. We discuss the properties and the modelling of these pulsations.

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