24 citations · 27 across the 10 of their papers we have counts for
4 papers · 1 filter
SN 2021foa: the bridge between SN IIn and Ibn
Anjasha Gangopadhyay, Naveen Dukiya, Takashi J Moriya +26
We present the long-term photometric and spectroscopic analysis of a transitioning SN~IIn/Ibn from 10.8 d to 150.7 d post -band maximum. SN~2021foa shows prominent He {\sc i}…
GRB 211211A: The Case for an Engine Powered over r-Process Powered Blue Kilonova
Hamid Hamidani, Masaomi Tanaka, Shigeo S. Kimura +2
The recent Gamma-Ray Burst (GRB) GRB 211211A provides the earliest ( h) data of a kilonova (KN) event, displaying bright ( erg s) and blue early emissio…
Three dimensional end-to-end simulation for kilonova emission from a black-hole neutron-star merger
Kyohei Kawaguchi, Nanae Domoto, Sho Fujibayashi +5
We study long-term evolution of the matter ejected in a black-hole neutron-star (BH-NS) merger employing the results of a long-term numerical-relativity simulation and nucleosynthe…
Late Engine Activity in Neutron Star Mergers and Its Cocoon: An Alternative Scenario for the Blue Kilonova
Hamid Hamidani, Shigeo S. Kimura, Masaomi Tanaka +1
Follow-up observations of short gamma-ray bursts (sGRBs) have continuously unveiled late extended/plateau emissions, attributed to jet launch due to late engine activity, the natur…