Abstract Details
| Name: Devarshi Choudhury Affiliation: Christ University Conference ID: ASI2018_1171 Title : Characterizing Disc Evolution of Pre-Main Sequence Stars in 3 – 50 Myr Open Clusters Authors and Co-Authors : Devarshi Choudhury, Amith Govind, Blesson Mathew, Manoj P., Paul K.T. Abstract Type : Poster Abstract Category : Stars,ISM and the Galaxy Abstract : Pre-Main Sequence (PMS) Stars are a class of Young Stellar Objects which form a crucial stage in the star formation process. Characterised by their masses, T-Tauri Stars (< 2Mʘ) and Herbig Ae/Be Stars (2 – 8 Mʘ) are observed during the PMS evolutionary phase. The protoplanetary discs of these stars serve as formation sites of planetary systems during this period of stellar evolution. We undertook a programme to find PMS Stars in Young Open Clusters in the Milky Way in the age range 3 – 50 Myr and present a pilot study of those clusters using archival photometric data. Young open clusters serve as excellent probes into the process of star-formation due to their large number of PMS Stars that are characterised by near-infrared (NIR) excess. We obtained optical UBV magnitudes of each cluster from WEBDA database and NIR JHK magnitudes from 2MASS Point Source Catalog. Employing de-reddened optical Colour-Magnitude diagram (CMD) and NIR Colour-Colour Diagram (CCD), we identified possible PMS Stars in each Cluster. In future, we intend to study the identified stars using the optical and IR instruments in the 3.6m Telescope at Devasthal, and the 2m HCT at Hanle, India. |