Excitation of oscillations in roAp stars: the roles of He settling and winds

Details Excitation of oscillations in roAp stars: the roles of He settling and winds Excitation of oscillations in roAp stars: the roles of He settling and winds

Jan 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006coast.147..101t&link_type=abstract

Communications in Asteroseismology, vol. 147, p. 101-104

Computer Science

5

Scientific paper

The properties of the oscillations in rapidly oscillating Ap stars strongly depend on the chemical stratification of the star. In this paper we examine the effects of a large magnetic field and various chemical transport processes (convection, He settling, turbulence and mass loss) on the chemical composition of Ap stars and on their stability. We show that the stellar evolutionary models that best reproduce the observations are those with convection suppressed, He settling and no wind. In the region of the HR diagram where most roAp stars have been found, these models predict the excitation of high frequency p modes and the damping of low frequency p modes, as observed.

Affiliated with

Also associated with

No associations

Rating

Excitation of oscillations in roAp stars: the roles of He settling and winds does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Excitation of oscillations in roAp stars: the roles of He settling and winds, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Excitation of oscillations in roAp stars: the roles of He settling and winds will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1203129