activity
20102026
most citedUltra High Energy Cosmic Ray Acceleration in Engine-driven Relativistic Supernovae

66 citations · 69 across the 6 of their papers we have counts for

collaborators

6 papers

astro-ph.HE2026

Radio and X-ray Observations of the Transitional Supernova 2019yvr: Insights into the Progenitor Mass-Loss History

Raphael Baer-way, Raphael Baer-Way, Poonam Chandra +8

The final life stages of the massive star progenitors of stripped-envelope supernovae (SESNe) are still an open question, especially when it comes to the timing and magnitude of th…

astro-ph.HE2026

SKAO and Gamma-Ray Synergies

Gianluca Castignani, Gavin Rowell, Arnau Aguasca-Cabot +26

A wide variety of Galactic and extragalactic sources are known to emitradiation across the entire electromagnetic spectrum, including both transient and steady-state phenomena. A f…

astro-ph.HE2024★ 2 cited

Dinosaur in a Haystack : X-ray View of the Entrails of SN 2023ixf and the Radio Afterglow of Its Interaction with the Medium Spawned by the Progenitor Star (Paper 1)

A. J. Nayana, Raffaella Margutti, Eli Wiston +24

We present the results from our extensive hard-to-soft X-ray (NuSTAR, Swift-XRT, XMM-Newton, Chandra) and meter-to-mm wave radio (GMRT, VLA, NOEMA) monitoring campaign of the very…

astro-ph.HE2023★ 1 cited

Chandra's insights into SN 2023ixf

Poonam Chandra, Roger A. Chevalier, Keiichi Maeda +2

We report Chandra-ACIS observations of SN 2023ixf in M101 on day 13 and 86 since the explosion. The X-rays in both epochs are characterized by high temperature plasma from the forw…

astro-ph.HE2018

Long term behaviour of a Type IIP supernova SN 2004dj in the radio bands

Nayana A J, Poonam Chandra, Alak K. Ray

We present radio observations and modelling of one of the nearest and brightest Type IIP supernova SN\,2004dj exploded in the galaxy NGC 2403 at a distance of 3.5 Mpc. Our o…

astro-ph.HE2010★ 66 cited

Ultra High Energy Cosmic Ray Acceleration in Engine-driven Relativistic Supernovae

Sayan Chakraborti, Alak Ray, Alicia Soderberg +2

The origin of the highest energy cosmic rays remains an enigma. They offer a window to new physics, including tests of physical laws relevant to their propagation and interactions,…