2 papers
astro-ph.HE2025
Absorption of strong electromagnetic waves in magnetized pair plasmas
Emanuele Sobacchi
We discuss synchrotron absorption of a short electromagnetic pulse that propagates in a cold magnetized pair plasma. We show that the pulse can be absorbed when $ω_{\rm B}/a_0< ω<…
astro-ph.HE2025
The Role of Acoustic Instability in Cosmic-Ray Self-Confinement
Antonio Capanema, Pasquale Blasi, Emanuele Sobacchi
Over the past decades, there has been growing observational and theoretical evidence that cosmic-ray-induced instabilities play an important role in both acceleration and transport…