Abstract Details

Name: Akhil Krishna R
Affiliation: CHRIST (Deemed to be University), Bangalore
Conference ID: ASI2020_122
Title : UV upturn in Virgo cluster early-type galaxies
Authors and Co-Authors : Akhil Krishna R, K R Namitha and Sreeja S Kartha
Abstract Type : Poster
Abstract Category : Extragalactic Astronomy
Abstract : The rise of UV flux shortward from 2000 angstroms in quiescent early-type galaxies (ETGs) is called the UV upturn and it still remains a puzzle. Different criteria have been used to identify the UV upturn galaxies, even though a scientific and efficient method is still missing. In this work, we are trying to figure out galaxies with UV upturn in the Virgo cluster of galaxies by making use of the spectral energy distribution(SED) fitting method. We used the photometric data from GALEX, SDSS and 2MASS to identify galaxies in the Virgo cluster with the UV upturn phenomenon. The SEDs of all identified galaxies have been produced using CIGALE software. Also, we evaluated the contribution of horizontal branch stars in addressing the UV upturn in galaxies. In this work, we also compared the galactic properties for UV upturn galaxies with normal ETGs.