activity
20012026
most citedConfined Dense Circumstellar Material Surrounding a Regular Type II Supernova: The Unique Flash-Spectroscopy Event of SN 2013fs

377 citations · 1.6k across the 25 of their papers we have counts for

collaborators

25 papers

astro-ph.GA2026

Non-Equilibrium Ionisation in Photoionised Haloes: Implications for Shock Stability and Absorption-Line Signatures

Itai Bromberg, Kartick C. Sarkar, Orly Gnat +1

We investigate the impact of nonequilibrium ionisation (NEI) and the metagalactic radiation-field on the thermal evolution, virial shock stability, and absorption signatures of gas…

astro-ph.GA2024

On the kinematic and thermodynamic state of clouds in complex wind-multi-cloud environments using a Friends-of-Friends analysis

Andrei Antipov, Wladimir E. Banda-Barragán, Yuval Birnboim +3

We investigate the interaction between a shock-driven hot wind and a cold multi-cloud layer, for conditions commonly found in interstellar and circumgalactic gas. We present a meth…

astro-ph.GA2024★ 2 cited

Intergalactic-Absorption Confounding Circumgalactic Observations

Itai Bromberg, Kartick C. Sarkar, Orly Gnat +1

The origin of warm ions in the circum-galactic medium (CGM) surrounding massive galaxies remains a mystery. In this paper, we argue that a significant fraction of the observed warm…

astro-ph.EP2023

UV to near-IR observations of the DART-Dimorphos collision

E. O. Ofek, D. Kushnir, D. Polishook +15

The impact of the Double Asteroid Redirection Test (DART) spacecraft with Dimorphos allows us to study asteroid collision physics, including momentum transfer, the ejecta propertie…

astro-ph.GA2022★ 21 cited

Self-ionizing galactic winds

Kartick C. Sarkar, Amiel Sternberg, Orly Gnat

We present hydrodynamical simulations of galactic winds from star-forming galaxies including non-equilibrium ionization and frequency-dependent radiative transfer, processes that h…

astro-ph.GA2020★ 17 cited

Non-equilibrium ionisation and radiative transport in an evolving supernova remnant

Kartick Chandra Sarkar, Orly Gnat, Amiel Sternberg

We present numerical simulations of the evolution of a supernova (SN) remnant expanding into a uniform background medium with density cm and temperature of $10^4…