5 papers
Dust-driven streaming instability and magnetic field amplification downstream of supernova remnant shocks
S. Gabici, J. C. Raymond, A. Ciardi +3
The acceleration of cosmic rays up to PeV energies at supernova remnant shocks requires an amplification of the ambient magnetic field. The amplification mechanism must operate ups…
Iron He-triplet signatures of shocks in the hottest galaxy clusters. Z/W line ratio, line broadening, and electron-ion temperature equilibration
Eugene Churazov, Yuri Ralchenko, Ildar I. Khabibullin +5
A merger of clusters naturally drives shocks with Mach number in the intra-cluster medium (ICM). This process creates several distinct signatures, including…
A half-ring of ionized circumstellar material trapped in the magnetosphere of a white dwarf merger remnant
Andrei A. Cristea, Ilaria Caiazzo, Tim Cunningham +31
Many white dwarfs are observed in compact double white dwarf binaries and, through the emission of gravitational waves, a large fraction are destined to merge. The merger remnants…
SDSS-V LVM: Collisionless Shocks in the Supernova Remnant RCW86
Sumit K. Sarbadhicary, Knox S. Long, John C. Raymond +19
The supernova remnant (SNR) RCW86 is among the few SNRs with Balmer-emission lines containing broad and narrow spectral components that trace fast, non-radiative shocks in partiall…
Cassiopeia A's Reverse Shock and its Effects on the Expanding SN Ejecta
Robert A. Fesen, Dan Milisavljevic, Daniel Patnaude +4
Using optical and near-infrared images of the Cassiopeia A (Cas A) supernova remnant covering the time period 1951 to 2022, together with optical spectra of selected filaments, we…