Deepest far ultraviolet view of a central field in the Coma cluster by <i>AstroSat</i> UVIT

We present analysis of the far ultraviolet (FUV) emission sources in central region Coma cluster (z=0.023) using data taken by UVIT aboard multi-wavelength satellite mission AstroSat. find a good correlation between FUV flux and fluxes both wavebands Galex mission, for common sources. detect stars galaxies, amongst which brightest (r <= 17 mag) galaxies field view are mostly members cluster. also three quasars (z = 0.38, 0.51, 2.31), one is likely farthest object observed so far. In almost all optical UV colour-colour colour-magnitude planes explored this work, other bright could be separately identified, but fainter often coincide with faint galaxies. have investigated unusual morphology to experiencing ram-pressure stripping Amongst others, two confirmed were not literature earlier, been found show emission. All distorted fallen into recently, hence virialised yet. A subset our spectroscopic information available from archives. For these (~ 10% sample), we that identify as star-forming, 18 composite 13 host active galactic nuclei, respectively on emission-line diagnostic diagram.