2 papers
astro-ph.HE2026
Revisiting early afterglows of gamma-ray bursts with finite-thickness ejecta: Implications from XRF 080330 and GRB 080710
Kaori Obayashi, Ryo Yamazaki, Yo Kusafuka +1
We revisit the physical origin of the achromatic peaks and breaks observed several thousand seconds after the burst in the multi-wavelength afterglows of XRF 080330 and GRB 080710.…
astro-ph.HE2025
Double-Peaked Optical Afterglow in GRB 110213A Inferring a Magnetized Thick Shell Ejecta
Yo Kusafuka, Kaori Obayashi, Katsuaki Asano +1
Gamma-ray bursts early afterglows are important tracers for determining the radial structure and magnetization of the ejecta. In this paper, we focus on GRB 110213A that shows doub…