Abstract Details

Name: Blesson Mathew
Affiliation: CHRIST (Deemed to be University)
Conference ID: ASI2020_397
Title : Higher mass accretion rates for Herbig Ae/Be stars in the Large Magellanic Cloud ?
Authors and Co-Authors : Blesson Mathew, Arun, R., Manoj, P., Reid, W. A., Shridharan B., Mayank N.
Abstract Type : Poster
Abstract Category : Stars, ISM and Galaxy
Abstract : Herbig Ae/Be stars are intermediate mass pre-main sequence stars in the spectral range B0 – F5. The characteristic features of these stars are emission lines in the optical/infrared spectrum and infrared excess, which is indicative of a circumstellar accretion disc. Although a substantial number of Herbig Ae/Be stars are identified in our Galaxy, no convincing detection of a population of Herbig Ae/Be stars is available in the Large Magellanic Cloud. We discovered 41 Herbig Ae/Be stars in the Large Magellanic Cloud. This sample of stars were identified from the analysis of 579 early-type emission-line stars listed in Reid & Parker (2012). The mass accretion rates of Herbig Ae/Be stars in the LMC is found to be ~10^-4 M_solar yr^-1, which is two orders of magnitude higher than the Galactic candidates. Also, these Herbig Ae/Be stars are relatively young and populate in the higher mass end than the Galactic candidates. This suggests that the high gas-to-dust ratio in the LMC makes the Herbig Ae/Be stars getting revealed earlier in the optical when compared to those in the Galaxy.