Name: Aayushi verma
Affiliation: Aryabhatta Research Institute of observational sciences
Conference ID : ASI2022_227
Title : Multiwavength study of the Galactic mid-infrared bubble [HKS2019] E70
Authors : Aayushi Verma, Dr. Saurabh
Abstract Type: Poster
Abstract Category : Stars, ISM and Galaxy
Abstract : Using the deep optical and near-infrared (NIR) photometry along with the multi-wavelength archival data, we present our study on the mid-infrared (MIR) bubble [HKS2019] E70 near star forming region ‘AFGL 5157’ to understand the star formation scenario in the region. Recent studies have suggested that the expansion of MIR bubbles associated with the H ii regions can trigger the 14 to 30% of the formation of the stars in our galaxy. Our primary aim is to determine the impact of massive stars on their nearby surroundings. Hii regions are considered as important observational tool of massive OB-stars as they are produced by the UV radiation and powerful winds from the massive stars. We have identified Young Stellar Objects (YSOs) based on their excess IR-emission using the two-color diagrams (TCDs). We have performed Spectral Energy Distribution (SED) fitting analysis on these YSOs to estimate their age and mass. MIR and radio continuum maps are used to trace the distribution of the cold gas/dust as well as ionised gas in the region. Optical TCDs and color magnitude diagrams (CMDs) are used to derive extinction/age/mass function of the stellar sources in this region. All these informations will be use to constrain the star-formation processes in the region.