Abstract Details
| Name: Gourav Banerjee Affiliation: Dept. of Physics, Christ University, Bangalore Conference ID: ASI2018_1538 Title : Spectroscopic Studies of Galactic Field Be stars through CaII and FeII emission lines Authors and Co-Authors : Paul K.T, Blesson Mathew; Christ University;Annapurni Subramaniam; IIA, Bangalore Abstract Type : Contributed Talk Abstract Category : Stars,ISM and the Galaxy Abstract : Be stars provide excellent opportunities to study circumstellar disks. But the disc formation mechanism of classical Be stars, known as ‘Be phenomenon’, is an open question in stellar astrophysics. The mystery of Be phenomenon can be understood by studying the Classical Be stars (CBe) in various locations. Spectra of Be stars show various interesting emission lines of hydrogen, oxygen, calcium, iron and other elements. Spectroscopic analysis of CaII and FeII emission lines are a less explored area in Be star research. So, we have selected a sample of 118 field CBe stars from the catalogue of Jaschek & Egret (1982) and obtained medium resolution spectra of these stars in the wavelength range 3800 – 9000 Å during December, 2007 to January, 2009 with HFOSC mounted on 2.1-m Himalayan Chandra Telescope, located at Hanle, Ladakh. We have studied the CaII and FeII emission lines for these 118 stars to frame a consolidated picture about Be phenomenon in CBe stars. |