Evolution of the circumstellar disc of alpha Eri

Details Evolution of the circumstellar disc of alpha Eri Evolution of the circumstellar disc of alpha Eri

2006-01-04

arxiv.org/abs/astro-ph/0601070v1

Astronomy and Astrophysics

Astrophysics

3 pages ; to appear in the proceedings of the Sapporo meeting on active OB stars ; ASP Conference Series ; eds: S. Stefl, S. O

Scientific paper

The Halpha line emission formation region in the circumstellar disc of alpha Eri is: a) extended with a steep outward matter density decline during low H$\alpha$ emission phases; b) less extended with rather constant density distribution during the strong Halpha emission. The long-term variation of the Halpha emission has a 14-15 year cyclic B-Be phase transition. The disc formation time scales agree with the viscous decretion model. The time required for the disc dissipation is longer than expected from the viscous disc model.

Affiliated with

Also associated with

No associations

Rating

Evolution of the circumstellar disc of alpha Eri 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 Evolution of the circumstellar disc of alpha Eri, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Evolution of the circumstellar disc of alpha Eri will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-305838