The pulsational stability of intermediate- and low-luminosity red giants in globular clusters

Details The pulsational stability of intermediate- and low-luminosity red giants in globular clusters The pulsational stability of intermediate- and low-luminosity red giants in globular clusters

Oct 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006cha%26a..30..379x&link_type=abstract

Chinese Astronomy and Astrophysics, Volume 30, Issue 4, p. 379-392.

Astronomy and Astrophysics

Astrophysics

1

Scientific paper

Some theoretical calculations of linear non-adiabatic pulsations of intermediate- and low- luminosity red giants in globular clusters have been carried out using a time-dependent theory of nonlocal stellar convection. As shown by the results, for all models with temperatures higher than 5400 K the modes up to the fourth overtone are pulsationally stable. With the increase of stellar luminosity, the low-order overtones also become pulsationally unstable. For red giants of intermediate and low luminosities, the pulsational stability is exceedingly low and is close to neutral stability. Therefore, they will be either non-variables or short-period variables (P < 2 days) with extremely small amplitudes.

Affiliated with

Also associated with

No associations

Rating

The pulsational stability of intermediate- and low-luminosity red giants in globular clusters 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 The pulsational stability of intermediate- and low-luminosity red giants in globular clusters, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The pulsational stability of intermediate- and low-luminosity red giants in globular clusters will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-874408