Observational evidence for a prograde one-armed density structure in the equatorial disc of a Be star

Astronomy and Astrophysics – Astrophysics

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

42

Stars: Emission-Line, Be, Circumstellar Matter, Individual: {Beta}^1^ Mon

Scientific paper

We discuss the implications of the observations of the Be star β^1^ Mon, as presented by Cowley & Gugula (1973), for the theory of one-armed density perturbations in the equatorial discs of Be stars. This theory aims to describe the nature of the long-term (cycles of a few to several years) V/R variations of the Balmer and other emission lines of these stars (Okazaki 1991 and Papaloizou et al. 1992). From the observations of β^1^ Mon we infer that a one-armed density structure revolved around the star in the same direction as the nearly Keplerian orbits of the disc material. We conclude that these observations are consistent with a model which predicts prograde precession of a one-armed density perturbation.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Observational evidence for a prograde one-armed density structure in the equatorial disc of a Be star 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 Observational evidence for a prograde one-armed density structure in the equatorial disc of a Be star, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Observational evidence for a prograde one-armed density structure in the equatorial disc of a Be star will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-1492813

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.