28 citations · 48 across the 12 of their papers we have counts for
12 papers
Investigating the Young Stellar Populations and Hierarchies in Nearby Galaxies with the UVIT. III. Evidence for a Largest Scale of Correlated Stellar Structures and a Non-universal Fractal Dimension
Gairola Shashank, Smitha Subramanian, Shyam H. Menon +5
Scale-free turbulent motions, gravitational collapse and galactic dynamics govern galactic-scale, hierarchical organization of star formation (SF) within galaxies. Past studies sug…
Bar-driven gas redistribution suppresses star formation in spiral galaxies: Evidence from dust lanes in NGC 3351
Koshy George, Smitha Subramanian
We present observational evidence, based on high-resolution imaging from HST, ALMA, and AstroSat/UVIT, that the redistribution of gas driven by the bar in the face-on spiral galaxy…
Tracing evolutionary pathways of bar-driven quenching in local Universe disc galaxies
D Renu, Smitha Subramanian, Koshy George
Bars play an integral role in regulating star formation (SF) in spiral galaxies, from triggering central starbursts to driving quenching. The diverse SF morphologies observed in lo…
Star formation outside galaxies undergoing gravitational and hydrodynamic interactions: Dust attenuation and the star formation rate
Geethika Santhosh, Rakhi R, Koshy George +3
Galaxies undergo perturbations, either gravitational or hydrodynamic in origin, which can generate extragalactic structures such as rings and tails, where in situ star formation ma…
Two Epochs of VLBI Observations of 8 KISSR Seyfert & LINER Galaxies: Suggestions of Fast and Filamentary Outflows
Preeti Kharb, Anderson Caproni, Salmoli Ghosh +4
We present here the results from a second epoch of phase-referenced VLBA observations of 8 Seyfert and LINER galaxies from the KISSR sample. These sources were chosen based on the…
Dwarf-Dwarf interactions and their influence on star formation : Insights from post-merger galaxies
Rakshit Chauhan, Smitha Subramanian, Deepak A. Kudari +2
Dwarf galaxies dominate the galaxy population across all redshifts, and majority of mergers are expected to occur between them. However, the impact of dwarf-dwarf mergers on star f…
Star formation in interacting galaxy systems: UVIT imaging of NGC 7252 and NGC 5291
Geethika Santhosh, Rakhi R, Koshy George +2
Interactions play a significant role in the formation and evolution of galaxies in the Universe. The galaxy systems, NGC 7252 and NGC 5291 are two nearby interacting systems that a…
Tracing Hierarchical Star Formation out to Kiloparsec Scales in Nearby Spiral Galaxies with UVIT
Gairola Shashank, Smitha Subramanian, Sreedevi M. +5
Molecular clouds fragment under the action of supersonic turbulence & gravity which results in a scale-free hierarchical distribution of star formation (SF) within galaxies. Recent…
Relativistic Jet Motion in the Radio-quiet LINER Galaxy KISSR872
Preeti Kharb, Eric G. Blackman, Eric Clausen-Brown +5
We report superluminal jet motion with an apparent speed of in the radio-quiet (RQ) low ionisation nuclear emission line region (LINER) galaxy, KISSR87…
Shape of the outer stellar warp in the Large Magellanic Cloud disk
S. Saroon, S. Subramanian
Warps are vertical distortions of the stellar or gaseous disks of galaxies. One of the proposed scenarios for the formation of warps involves tidal interactions among galaxies. A r…
The Search for Binary Black holes in Seyferts with Double Peaked Emission Lines
P. Kharb, M. Das, S. Subramanian +1
We discuss results from very long baseline interferometry (VLBI) observations of two Seyfert galaxies with double peaked emission lines in their SDSS optical spectra. Such AGN are…
VLBI Imaging of the Double Peaked Emission Line Seyfert KISSR1494
Preeti Kharb, Mousumi Das, Zsolt Paragi +2
We present here the results from dual-frequency phase-referenced VLBI observations of the Seyfert galaxy KISSR1494, which exhibits double peaked emission lines in its SDSS spectrum…