| Abstract : | We employ data from the Ultraviolet Imaging Telescope (UVIT) aboard the AstroSat mission to study galaxies in nearby clusters. In a very deep Far Ultra-Violet (FUV) image of the Coma cluster, we have discovered several galaxies with unusual FUV morphology. Our analysis indicates that these galaxies could have recently fallen into the Coma cluster and are currently experiencing ram-pressure stripping. In this talk, we will present the properties, plausible origin, and evolution of these distorted FUV galaxies.
We will also proffer preliminary analysis of an excess UV (XUV) galaxy in another cluster which is experiencing ram-pressure stripping. Although observed in multiple wavebands, the tell-tale tidal tails of this galaxy are most obvious in the FUV image. Our analysis therefore evidently shows the crucial role played by the high resolution UVIT data in unraveling the role of ram-pressure stripping in the evolution of cluster galaxies. |
