collaborators

5 papers

astro-ph.HE2026

Constraints on the Physical Association between ICECAT1 Neutrinos and Fast Radio Bursts Using the Second CHIME/FRB Catalogue

Hiroto Masaoka, Tetsuya Hashimoto, Shotaro Yamasaski +8

We present a search for neutrino counterparts to fast radio bursts (FRBs) using temporal and spatial cross-matching between the Second CHIME/FRB catalogue and the IceCube high-ener…

astro-ph.IM2026

One-week optical observations of pulsed emission from the Crab pulsar with IMONY on the 3.8 m Seimei telescope

Kazuaki Hashiyama, Takeshi Nakamori, Anju Sato +13

We report our optical observations of the Crab pulsar using the Imager of MPPC-based Optical photoN counter from Yamagata (IMONY), a high-time-resolution photon-counting imager wit…

astro-ph.IM2025

Calibrating the photometric performance of a high-time-resolution photon-counting imager for optical astronomy

Mana Hasebe, Takeshi Nakamori, Kazuaki Hashiyama +8

Optical observations with high time resolution are essential for understanding the origin of sub-millisecond timescale astronomical phenomena, including giant radio pulses from the…

astro-ph.IM2025

Development of an imager with high time resolution optical photon counter

A. Sato, T. Nakamori, M. Shoji +7

Astrophysical transient phenomena on sub-millisecond timescales, such as fast radio bursts and giant radio pulses from the Crab pulsar, have been primarily observed in radio waveba…

astro-ph.IM2025

Optical photon-counting observation of the Crab pulsar with Kanata telescope using prototype IMONY

Takeshi Nakamori, Kazuaki Hashiyama, Rin Sato +14

We have developed an optical photon-counting imaging system, IMONY, as an instrument for short-scale time-domain astronomy. In this study, we utilized a Geiger avalanche photodiode…