Abstract Details
| Name: MadhuKashyap Jagadeesh Affiliation: Christ (Deemed to be University), Bengaluru Conference ID: ASI2019_307 Title : Survey program to identify classical Be stars in open clusters older than 100 Myr Authors and Co-Authors : Madhu Kashyap Jagadeesh*, Paul K T, Blesson Matthew and Annapurni Subramaniam** Department of Physics and Electronics, Christ (Deemed to be University), Bengaluru-560029. **Indian Institute of Astrophysics, Bengaluru -560034 *madhu.kashyap@res.christuniversity.in Abstract Type : Poster Abstract Category : Stars, ISM and Galaxy Abstract : We carried out a survey program with Himalayan Chandra Telescope using slitless spectroscopy technique, to identify Be stars in Open Clusters older than 100 Myr. The motivation for this survey was to understand how disk is formed in classical Be stars (Be Phenomenon). Although various mechanisms such as rapid rotation, non-radial pulsation, have been proposed to understand Be phenomenon, no consensus has emerged yet. Also, it needs to be understood whether, the Be star is ejecting mass during the early or latter phase of their main sequence life time. We identified 13 Be stars in 11 open clusters in emission and 8 Be stars, belonging to 4 open clusters, in transient phase from our slitless spectroscopy survey program. This study, when combined with our previous analysis on clusters younger than 100 Myr can provide insights in understanding Be Phenomenon in classical Be stars. |