Abstract Details

Name: Chayan Mondal
Affiliation: Indian Institute of Astrophysics
Conference ID: ASI2017_737
Title : UVIT imaging of WLM: Understanding star formation in the dwarf irregular galaxy
Authors and Co-Authors : Annapurni Subramaniam Indian Institute of Astrophysics
Abstract Type : Poster
Abstract Category : Extragalactic astronomy
Abstract : WLM is a dwarf irregular galaxy, located in an isolated part of the Local group with a distance of 995 kpc. Several photometric studies have shown the presence of young population in the disk of the galaxy with an old metal poor halo. Since ultra-violet radiation can probe the recent star forming activities in a galaxy, UVIT observations in four different filters (F148W, F169M, N245M, N263M) are performed for this galaxy. We performed aperture photometry to estimate the magnitudes in each filter and created UVIT color-magnitude diagrams (CMD) with the identified sources. We have fitted isochrones, generated from Flexible Stellar Population Synthesis (FSPS) model, in the observed CMD to estimate different parameters of the identified sources. With the better spatial resolution of UVIT than that of GALEX, we have identified several star forming regions near the center of the galaxy also.