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15 papers
Ultraviolet flux and spectral variability study of blazars observed with UVIT/AstroSat
M. Reshma, Aditi Agarwal, C. S. Stalin +5
Blazars, the peculiar class of active galactic nuclei (AGN), are known to show flux variations across the accessible electromagnetic spectrum. Though they have been studied extensi…
UVIT view of NGC 5291: Ongoing star formation in tidal dwarf galaxies at ~ 0.35 kpc resolution
Rakhi R, Geethika Santhosh, Prajwel Joseph +14
NGC 5291, an early-type galaxy surrounded by a giant HI ring, is believed to be formed from collision with another galaxy. Several star forming complexes and tidal dwarf galaxies a…
UVIT observations of the Small Magellanic Cloud: Point source catalogue
Ashish Devaraj, Prajwel Joseph, C. S. Stalin +2
Three fields in the outskirts of the Small Magellanic Cloud were observed by the Ultra-Violet Imaging Telescope (UVIT) on board AstroSat, during 31 December 2017 and 01 January 201…
Smallest scale clumpy star formation in Stephan's Quintet revealed from UV and IR imaging
Prajwel Joseph, Koshy George, Smitha Subramanian +2
The spatial distribution and physical sizes of star forming clumps at the smallest scales provide valuable information on hierarchical star formation (SF). In this context, we repo…
Active galactic nucleus feedback in NGC 3982
Prajwel Joseph, Koshy George, K. T. Paul
The energetic feedback from supermassive black holes can influence star formation at the centres of galaxies. Observational evidence for active galactic nucleus (AGN) impact on sta…
UVIT view of Centaurus A; a detailed study on positive AGN feedback
Prajwel Joseph, P. Sreekumar, C. S. Stalin +4
$\require{mediawiki-texvc}$ Supermassive black holes at the centre of active galactic nuclei (AGN) produce relativistic jets that can affect the star formation characteristics of t…