3 papers
astro-ph.HE2026
Interaction-powered Type Ibn Supernovae as a Transient PeVatron Candidate: The Case of SN 2023uqf
Ryo Sawada, Yusuke Inoue, Yosuke Ashida
We investigate whether the Type Ibn supernova SN 2023uqf, reported close in time and direction to the 442 TeV IceCube alert IC-231004A, is physically consistent with a shock-…
astro-ph.HE2025
Formation of circumstellar material during double-white-dwarf mergers and the early excess emissions in Type Ia supernovae
Yusuke Inoue, Keiichi Maeda, Takashi Nagao +1
Early excess emission observed in Type Ia supernovae (SNe Ia) within day of explosion provides a critical window into their progenitor systems. In the present study, we inv…
astro-ph.HE2024
Insights into the Properties of Type Ibn/Icn Supernovae and Their Progenitor Channels through X-ray Emission
Yusuke Inoue, Keiichi Maeda
Type Ibn/Icn supernovae (SNe Ibn/Icn), which are characterized by narrow helium or carbon lines originated in hydrogen-poor dense circumstellar medium (CSM), provide new insights i…