3 papers
astro-ph.HE2026
Thermal Electrons in an Ultra-Relativistic Shock Shape the Optical Afterglow of GRB 250702F
Martin JelÃnek, Annarita Ierardi, Filip Novotný +8
Observing early optical emission from gamma-ray bursts (GRBs) contemporaneous with the MeV prompt emission phase remains rare, requiring rapid-response robotic facilities. The OndÅ…
astro-ph.HE2025
GW241011 and GW241110: Exploring Binary Formation and Fundamental Physics with Asymmetric, High-Spin Black Hole Coalescence
The LIGO Scientific Collaboration, the Virgo Collaboration, the KAGRA Collaboration +1783
We report the observation of gravitational waves from two binary black hole coalescences during the fourth observing run of the LIGO--Virgo--KAGRA detector network, GW241011 and GW…
astro-ph.HE2025
Imprint of "Local Opacity" Effect in Gamma-Ray Spectrum of Blazar Jet
Sushmita Agarwal, Amit Shukla, Karl Mannheim +2
Relativistic jets from accreting supermassive black holes at cosmological distances can be powerful emitters of -rays. However, the precise mechanisms and locations responsible…