activity
20142026
most citedImproved Constraints on the 21 cm EoR Power Spectrum and the X-Ray Heating of the IGM with HERA Phase I Observations

184 citations · 916 across the 59 of their papers we have counts for

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Showing astro-ph.GAShow all

6 papers · 1 filter

astro-ph.GA2026

Detection of non-thermal radio emission components from the Orion Nebula: stellar jets, cloud collision or feedback from stellar winds?

Md Rashid, Nirupam Roy, Prasun Dutta +5

The Orion Nebula is the closest high-mass star-forming region, making it an ideal laboratory to investigate physical processes in complex star-forming environments. At radio freque…

astro-ph.GA2025★ 3 cited

A measurement of Galactic synchrotron emission using MWA drift scan observations

Suman Chatterjee, Shouvik Sarkar, Samir Choudhuri +4

Studying the diffuse Galactic synchrotron emission (hereafter, DGSE) at arc-minute angular scale is important to remove the foregrounds for the cosmological 21-cm observations. Sta…

astro-ph.GA2021★ 8 cited

The auto and cross angular power spectrum of the Cas A supernova remnant in radio and X-ray

Preetha Saha, Somnath Bharadwaj, Susmita Chakravorty +4

The shell type supernova remnant (SNR) Cas A exhibits structures at nearly all angular scales. Previous studies show the angular power spectrum of the radio emission t…

astro-ph.GA2020★ 1 cited

Angular power spectrum of supernova remnants: effects of structure, geometry and diffuse foreground

Samir Choudhuri, Preetha Saha, Nirupam Roy +2

The study of the intensity fluctuation power spectrum of individual supernova remnants (SNRs) can reveal the structures present at sub-pc scales, and also constrain the physical pr…

astro-ph.GA2019★ 15 cited

A study of Kepler supernova remnant: angular power spectrum estimation from radio frequency data

Preetha Saha, Somnath Bharadwaj, Nirupam Roy +2

Supernova remnants (SNRs) have a variety of overall morphology as well as rich structures over a wide range of scales. Quantitative study of these structures can potentially reveal…

astro-ph.GA2018★ 12 cited

Turbulent power spectrum in warm and cold neutral medium using the Galactic HI 21 cm emission

Samir Choudhuri, Nirupam Roy

Small-scale fluctuations of different tracers of the interstellar the medium can be used to study the nature of turbulence in astrophysical scales. Of these, the `continuum' emissi…