Abstract Details

Name: Ujjwal Krishnan
Affiliation: CHRIST (Deemed to be University), Bangalore
Conference ID: ASI2021_497
Title : UVIT view of secular evolution in NGC 628
Authors and Co-Authors : Ujjwal Krishnan (CHRIST (Deemed to be University)), Sreeja S Kartha (CHRIST (Deemed to be University)) , Robin Thomas (CHRIST (Deemed to be University)), Smitha Subramanian (IIA), Blesson Mathew (CHRIST (Deemed to be University))
Abstract Type : Poster
Abstract Category : Extragalactic Astronomy
Abstract : Recent star formation activity sheds light on the formation and evolution of galaxies in the local Universe. Secular and environmental effects play a significant role in regulating the star formation rate and hence the evolution of the galaxies. Since, the UV flux is a direct indicator of the star formation in galaxies, the UltraViolet Imaging Telescope (UVIT) onboard ASTROSAT enables us to characterize the star-forming knots in the galaxy (within angular scales less than 1.5”). In this study, we are focusing on the secular evolution of NGC 628, a well-studied galaxy in the local universe. Recent studies suggest that the propagation of star formation across the galaxy varies from region to region which is directly correlated with the evolution of the galaxy. The star formation in NGC 628 follows different trends in the disk, bulge, and spiral arms of the galaxy. Star-forming regions in the UV images are characterized and their properties are correlated with the relative distribution and the properties of the galaxy. The headlight cloud present in the disk of the galaxy attained important recognition in recent researches. The headlight cloud is also studied using UVIT and the properties are explained.