On the long-term periodicities in Be stars

Details On the long-term periodicities in Be stars On the long-term periodicities in Be stars

Nov 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992a%26a...265l..45p&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 265, no. 2, p. L45-L48.

Statistics

Computation

71

B Stars, Periodic Variations, Balmer Series, Computational Astrophysics, Emission Spectra, Stellar Envelopes, Stellar Orbits, Stellar Rotation

Scientific paper

We show that if the quadrupole contribution to the external potential of a rotationally distorted Be star is taken into account, a mechanism to provide the long term cyclic behavior of the V/R ratio of Balmer emission lines arises naturally as the precession of free particle orbits. The precession can also manifest itself as the prograde pattern rotation of a one armed mode that is confined within a few stellar radii in a thin equatorial disk. For plausible values of the Be star parameters the precession period turns out to be of order 10 years, which falls in the observed regime.

Affiliated with

Also associated with

No associations

Rating

On the long-term periodicities in Be 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 On the long-term periodicities in Be stars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and On the long-term periodicities in Be stars will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1551284