activity
20222026
most citedThe AstroSat UV Deep Field North: the far and near ultraviolet photometric catalog

13 citations · 22 across the 11 of their papers we have counts for

collaborators

12 papers

astro-ph.GA2026

Chemical abundance patterns at z=1-7: Carbon, Nitrogen, Neon, Sulphur, and Argon abundances from JWST spectroscopy

E. Cataldi, F. Belfiore, M. Curti +22

The relative abundances of chemical elements in the interstellar medium (ISM) trace the history of star formation and chemical enrichment in galaxies. We investigate the abundance…

astro-ph.GA2026

The Great Escape of ionizing photons during Cosmic Morning

Kanak Saha, Roland Bacon, Anne Verhamme +8

The end of the Cosmic Dark Age marked the onset of reionization, driven by extreme-UV photons from the first galaxies. Direct detection of such photons has remained challenging due…

astro-ph.GA2025★ 5 cited

The origin of extreme N-emitters in star-forming galaxies at z0.5 with DESI DR1

Souradeep Bhattacharya, Chiaki Kobayashi

Extreme nitrogen enhancement relative to oxygen, recently found in very high-redshift galaxies, has been seen in local star-forming galaxies displaying high log(N/O) values ($\geq\…

astro-ph.GA2025

ChemZz I: Comparing Oxygen and Iron Abundance Patterns in the Milky Way, the Local Group and Cosmic Noon

Stephanie Monty, Allison L. Strom, Thomas M. Stanton +7

Our understanding of the chemical evolution of galaxies has advanced through measurements from both distant galaxies across redshift, and our own Milky Way (MW). To form a comprehe…

astro-ph.GA2025★ 2 cited

Mass-dependent chemical enrichment sequences of SDSS star-forming galaxies out to z~0.3 revealed by direct O & Ar abundances

Souradeep Bhattacharya, Magda Arnaboldi, Chiaki Kobayashi +2

Individual stars in the Milky Way (MW) and its satellites have been shown to trace galaxy stellar mass dependent sequences in the -abundance ([/Fe]) vs metallicity ([Fe/H]) p…

astro-ph.GA2025

The AstroSat UV Deep Field South. III. Evolution of the UV Luminosity Function and Luminosity Density from z~0.8-0.4

Souradeep Bhattacharya, Kanak Saha

We characterise the rest-frame 1500 Å UV luminosity Function (UVLF) from deep AstroSat/UVIT F154W and N242W imaging in the Great Observatories Origins Survey South (GOODS-S) deep f…

astro-ph.GA2025

Chemical signature reveals co-spatial dwarf satellite of an edge-on disc galaxy with MUSE

Devang Somawanshi, Souradeep Bhattacharya, Manish Kataria +2

Integral field unit (IFU) spectroscopic observations of resolved galaxies provide an optimal experimental setting for determination of stellar population properties, in particular…

astro-ph.GA2024

AstroSat UV Deep Field South -- I. Far and Near-ultraviolet Source Catalog of the GOODS South region

Kanak Saha, Soumil Maulick, Pushpak Pandey +11

We present the AstroSat UV Deep Field South (AUDFs), an imaging survey using the wide-field Ultraviolet Imaging Telescope on board AstroSat. AUDFs covers arcmin of…

astro-ph.GA2024★ 2 cited

Unveiling galaxy chemical enrichment mechanisms out to z~8 from direct determination of O & Ar abundances from JWST/NIRSPEC spectroscopy

Souradeep Bhattacharya, Magda Arnaboldi, Ortwin Gerhard +2

Galaxy chemical enrichment mechanisms have primarily been constrained by [/Fe] and [Fe/H] measurements of individual stars and integrated light from stellar populations. However…

astro-ph.GA2023

The AstroSat UV Deep Field North: Direct determination of the UV Luminosity Function and its evolution from z~0.8-0.4

Souradeep Bhattacharya, Kanak Saha, Chayan Mondal

We characterize the evolution of the rest-frame 1500 $\unicode{xC5}$ UV luminosity Function (UVLF) from AstroSat/UVIT F154W and N242W imaging in the Great Observatories Origins Sur…

astro-ph.GA2022★ 13 cited

The AstroSat UV Deep Field North: the far and near ultraviolet photometric catalog

Chayan Mondal, Kanak Saha, Souradeep Bhattacharya +7

We present deep UV imaging observations of the Great Observatories Origins Survey Northern (GOODS-N) field with AstroSat/UVIT (AstroSat UV Deep Field north - AUDFn), using one far-…

eess.SY2022

ICS-CTM2: Industrial Control System Cybersecurity Testbed Maturity Model

Souradeep Bhattacharya, Burhan Hyder, Manimaran Govindarasu

Industrial Control System (ICS) testbeds serve as a platform for evaluating and validating control system performances, cybersecurity tools and technologies. In order to build or e…