Helium ionization driving in Beta Cephei stars

Details Helium ionization driving in Beta Cephei stars Helium ionization driving in Beta Cephei stars

Oct 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978aj.....83.1184s&link_type=abstract

Astronomical Journal, vol. 83, Oct. 1978, p. 1184-1189.

Astronomy and Astrophysics

Astronomy

52

Helium Ions, Ionized Gases, Stellar Models, Variable Stars, Destabilization, Hertzsprung-Russell Diagram, Magnetohydrodynamic Stability, Opacity, Stellar Temperature

Scientific paper

In a series of nonadiabatic linear pulsation analyses, the destabilizing effect of the He(+) ionization edge (which is responsible for an opacity feature near T = 150,000 K) is demonstrated. This mechanism is shown to be most effective in a region of the H-R diagram nearly coincident with that of the observed Beta Cephei variables. Although actual instability is not obtained with standard models, it is shown that this could easily be due to approximations in the models and poor opacity resolution above T = 100,000 K. Slightly modified models that are presented do show an instability strip in good agreement with observed Beta Cepheids.

Affiliated with

Also associated with

No associations

Rating

Helium ionization driving in Beta Cephei stars 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 Helium ionization driving in Beta Cephei stars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Helium ionization driving in Beta Cephei stars will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1689601