3 papers
astro-ph.GA2026
Emission line formation in scattering dominated media: implications for LRDs
Elisha Modelevsky, Omri Nitzan, Re'em Sari +1
Recent JWST observations of ``Little Red Dots'' (LRDs) reveal broad and prominent Balmer emission lines. We present a theoretical framework for intrinsic emission line formation an…
astro-ph.HE2024
The unreasonable effectiveness of the approximation
Elisha Modelevsky, Nicholas C. Stone, Re'em Sari
In kinetic theory, the classic approach calculates the rate of particle interactions from local quantities: the number density of particles , the cross-section , and t…
astro-ph.HE2021
Revisiting the Strong Shock Problem: Converging and Diverging Shocks in Different Geometries
Elisha Modelevsky, Re'em Sari
Self-similar solutions to converging (implosions) and diverging (explosions) shocks have been studied before, in planar, cylindrical or spherical symmetry. Here we offer a unified…