On Highly Non-Adiabatic Stellar Pulsations and the Origin of Strange Modes

Details On Highly Non-Adiabatic Stellar Pulsations and the Origin of Strange Modes On Highly Non-Adiabatic Stellar Pulsations and the Origin of Strange Modes

Aug 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990mnras.245..597g&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Vol. 245, NO.4/AUG15, P. 597, 1990

Astronomy and Astrophysics

Astronomy

69

Scientific paper

Using a new numerical method and considering complete evolutionary stellar models, the linear non-adiabatic pulsations of helium stars are re-examined. A variety of new strange modes are found, some of which are unstable and extend - consistently with the observations - the instability strip to high temperatures up to log Teff = 4.3. The origin of the various modes is identified and an alternative interpretation of the strange mode phenomenon is provided. The instabilities associated with the strange modes are not due to the κ mechanism and are explained - as the strange mode phenomenon itself - by mode coupling. It is demonstrated, by considering the stability of AGB envelopes, that strange modes seem to be a common feature for strong deviations from adiabaticity and a pronounced core envelope structure of the star.

Affiliated with

Also associated with

No associations

Rating

On Highly Non-Adiabatic Stellar Pulsations and the Origin of Strange Modes 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 On Highly Non-Adiabatic Stellar Pulsations and the Origin of Strange Modes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and On Highly Non-Adiabatic Stellar Pulsations and the Origin of Strange Modes will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1129152