Pulsational stability for intermediate- and low- luminosity red stars of globular cluster

Details Pulsational stability for intermediate- and low- luminosity red stars of globular cluster Pulsational stability for intermediate- and low- luminosity red stars of globular cluster

Jul 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006acasn..47..256x&link_type=abstract

Acta Astronomica Sinica, vol. 47, no. 3, p. 256-267

Astronomy and Astrophysics

Astronomy

2

Stars: Oscillations, Stars: Variables: General, Stars: Late-Type

Scientific paper

Using a time-dependent theory non-local of convection, the linear non-adiabatic oscillations for intermediate- and low-luminosity red giants of globular cluster were calculated. The results show that all the models, temperature of which is higher than 5400K, are pulsationally stable from fundamental modes to fourth overtone. The high-order modes become unstable with decrease of effective temperature of stars. The low-order modes become unstable with increase of luminosity. The pulsational stability is very low and near to neutral stability for the intermediate- and low-luminosity red giants. Therefore, they should be constant stars or very-small-amplitude , short-period (P<2 day) variables.

Affiliated with

Also associated with

No associations

Rating

Pulsational stability for intermediate- and low- luminosity red stars of globular cluster 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 Pulsational stability for intermediate- and low- luminosity red stars of globular cluster, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pulsational stability for intermediate- and low- luminosity red stars of globular cluster will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1136139