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Un téléobjectif géant pour observer le ciel...

The Be star : Alpha Arae
Monday 30 October 2006, by Florentin Millour


The AMBER instrument has observed the Be star Alpha Arae during the month of February 2005. The data collected allowed to constraint the kinematics of the circumstellar disk of the star. It prooved that the disk is in Keplerian rotation around the Alpha Arae star. This is the first direct answer of a question asked about the Be stars from their discovery.

You can find the complete description of the study in the article:

- "First direct detection of a Keplerian rotating disk around the Be star alpha Arae using the VLTI/AMBER instrument" by A. Meilland, Ph. Stee, M. Vannier, F. Millour, A. Domiciano de Souza, F. Malbet C. Martayan, F. Paresce, R. Petrov, A. Richichi, and A. Spang

JPEG - 185.6 kb
Artist’s view of Alpha Arae
Credit: A. Meilland

The ESO official press release corrsesponding to this result is here

many web-articles were derived. Here is a small list:
- Le disque autour des étoiles chaudes actives tourne bien comme les planètes autour du Soleil !
- Le disque autour des étoiles actives obéit aux lois de Kepler !
- Fast-Spinning Star on Verge of Breaking Apart
- Una estrella que gira a gran velocidad, a punto de romperse
- Kreiselstern verliert Hüftspeck
- VLTI Discerns How Matter Behaves in Disc Around a Be Star
- To be or not to be: Is it all about spinning?
- Alpha Arae
- A star on the verge of breaking
- To be or not to be: Is it all about spinning?
- To be or not to be: Is it all about spinning?
- Alpha Arae dans "Ciel et Espace"

... and many other in Google ...





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