Seismic modelling of OB stars

Abstract

Abstract.A review of the ability of asteroseismology to probe the internal physics of OB stars is presented. The main constraints that can be obtained from the frequency spectrum in pand g-modes pulsators are discussed. Next, we consider energetic aspects of the pulsations in OB stars and show how such study also allows to constrain their internal physics. The cases of p-mixed modes (β Cep stars), g-modes (SPB stars), strange modes and stochastically excited modes are considered.

Ephemeris, orbital decay, and masses of ten eclipsing high-mass X-ray binaries

“…In addition to asteroseismology (see, e.g., Dupret et al 2011, and references therein), measuring the apsidal advance in eccentric binary systems offers an alternative possibility to investigate the internal structure of stars compared to theoretical calculations and numerical modeling. The rate at which the longitude of periastron of an eccentric orbit advances can be related to the absidal motion constant, which depends on the model of the mass distribution inside the star (Kopal 1978;Batten 1973).…”