Astronomy and Astrophysics – Astrophysics
Scientific paper
Apr 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009a%26a...498..273g&link_type=abstract
Astronomy and Astrophysics, Volume 498, Issue 1, 2009, pp.273-279
Astronomy and Astrophysics
Astrophysics
8
Stars: Supergiants, Stars: Oscillations, Stars: Evolution
Scientific paper
During their post - main-sequence evolution, massive star models harbor a convection zone on top of their hydrogen burning shell. This physical property helps, under suitable circumstances, to destabilize low-degree nonradial modes that might explain the cyclic light variability of α Cygni variables. The results of first exploratory computations demonstrate that modes with periods ranging from about one dozen to several dozen days can be overstable in star models at about the position on the HR diagram where the prototype of the class, Deneb, is observed.
No associations
LandOfFree
Deneb's variability: a hint of a deep-lying convection zone? 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 Deneb's variability: a hint of a deep-lying convection zone?, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Deneb's variability: a hint of a deep-lying convection zone? will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1860705