Abstract Details

Name: Sneh Lata
Affiliation: ARIES, Nainital
Conference ID: ASI2016_904
Title : Variable stars in young open star cluster NGC 7380
Authors and Co-Authors : A. K. Pandey (ARIES), Neelam Panwar (DU), W. P. Chen (IANCU, Taiwan), M. R. Samal (AMULAM, France), J. C. Pandey (ARIES)
Abstract Type : Poster
Abstract Category : Stars, The Milky Way Galaxy and its neighbours
Abstract : We present time series photometry of 57 variable stars in the cluster region NGC 7380. The membership of these variable stars to the cluster NGC 7380 has been established on the basis of two colour diagrams and colour-magnitude diagrams. Seventeen stars are found to be main-sequence variables, which are mainly B type stars and are classified as slowly pulsating B stars, β Cep or δ Scuti stars. Some of them may belong to new class variables as discussed by Mowlavi et al. (2013) and Lata et al. (2014). Present sample also contains 14 pre-main-sequence stars, whose ages and masses are found to be mostly ≲ 5 Myr and range 0.60 ≲M/M⊙≲ 2.30 and hence should be T-Tauri stars. About half of the weak line T-Tauri stars are found to be fast rotators with a period of ≲ 2 days as compared to the classical T-Tauri stars. We have also detected some of the variables belonging to the field star population.