A. Devaraj
YOU?
Author Swipe
View article: Connecting the dots: Tracing the evolutionary pathway of polar ring galaxies in the cases of NGC 3718, NGC 2685, and NGC 4262
Connecting the dots: Tracing the evolutionary pathway of polar ring galaxies in the cases of NGC 3718, NGC 2685, and NGC 4262 Open
Polar ring galaxies (PRGs) are a unique class of galaxies characterised by a ring of gas and stars orbiting nearly orthogonal to the main body. This study delves into the evolutionary trajectory of PRGs using the exemplary trio of NGC 3718…
View article: Ultraviolet Flux and Spectral Variability Study of Blazars Observed with UVIT/AstroSat
Ultraviolet Flux and Spectral Variability Study of Blazars Observed with UVIT/AstroSat Open
Blazars, the peculiar class of active galactic nuclei, are known to show flux variations across the accessible electromagnetic spectrum. Though they have been studied extensively for their flux variability characteristics across wavelength…
View article: Exploring the central region of NGC 1365 in the ultraviolet domain
Exploring the central region of NGC 1365 in the ultraviolet domain Open
Active galactic nuclei (AGN) feedback and its impact on their host galaxies are critical to our understanding of galaxy evolution. Here, we present a combined analysis of new high resolution ultraviolet (UV) data from the Ultraviolet Imagi…
View article: Exploring the Central Region of NGC 1365 in the Ultraviolet Domain
Exploring the Central Region of NGC 1365 in the Ultraviolet Domain Open
Active galactic nuclei (AGN) feedback and its impact on their host galaxies are critical to our understanding of galaxy evolution. Here, we present a combined analysis of new high resolution ultraviolet (UV) data from the Ultraviolet Imagi…
View article: Detection of a new sample of Galactic white dwarfs in the direction of the Small Magellanic Cloud
Detection of a new sample of Galactic white dwarfs in the direction of the Small Magellanic Cloud Open
Aims. In this study, we demonstrate the efficacy of the Ultraviolet Imaging Telescope (UVIT) in identifying and characterizing white dwarfs (WDs) within the Milky Way Galaxy. Methods. Leveraging the UVIT point-source catalogue towards the …
View article: Ultraviolet flux and spectral variability study of blazars observed with UVIT/AstroSat
Ultraviolet flux and spectral variability study of blazars observed with UVIT/AstroSat Open
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 extensively for their flux variability characteristics across wave…
View article: Study of the Balmer decrements for Galactic classical Be stars using the Himalayan Chandra Telescope of India
Study of the Balmer decrements for Galactic classical Be stars using the Himalayan Chandra Telescope of India Open
In a recent study, Banerjee et al. (2021) produced an atlas of all major emission lines found in a large sample of 115 Galactic field Be stars using the 2-m Himalayan Chandra Telescope (HCT) facility located at Ladakh, India. This paper pr…
View article: UVIT Observations of the Small Magellanic Cloud: Point-source Catalog
UVIT Observations of the Small Magellanic Cloud: Point-source Catalog Open
Three fields in the outskirts of the Small Magellanic Cloud were observed by the UltraViolet Imaging Telescope (UVIT) on board AstroSat, between 2017 December 31 and 2018 January 1. The observations were carried out on a total of seven fil…
View article: UVIT observations of the Small Magellanic Cloud: Point source catalogue
UVIT observations of the Small Magellanic Cloud: Point source catalogue Open
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 2018. The observations were carried out on a total of seven fi…
View article: An Automated Pipeline for Ultra-Violet Imaging Telescope (UVIT)
An Automated Pipeline for Ultra-Violet Imaging Telescope (UVIT) Open
We describe a versatile pipeline for processing the data collected by the Ultra-Violet Imaging Telescope (UVIT) on board Indian Multi-wavelength astronomical satellite AstroSat.The UVIT instrument carries out simultaneous astronomical imag…
View article: In orbit performance of UVIT over the 5 years
In orbit performance of UVIT over the 5 years Open
Over the last 5 years, UVIT has completed observations of more than 500 proposals with ~ 800 unique pointings. In addition, regular planned monitoring observations have been made and from their analysis various key parameters related to in…
View article: UVIT observations of the star-forming ring in NGC 7252: Evidence of possible AGN feedback suppressing central star formation
UVIT observations of the star-forming ring in NGC 7252: Evidence of possible AGN feedback suppressing central star formation Open
Context. Some post-merger galaxies are known to undergo a starburst phase that quickly depletes the gas reservoir and turns it into a red-sequence galaxy, though the details are still unclear. Aims. Here we explore the pattern of recent st…