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- The University of TokyoJP492 papers
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5 papers · 2 filters
A simple, flexible method for timing cross-calibration of space missions
Matteo Bachetti, Yukikatsu Terada, Megumi Shidatsu +25
The timing (cross-)calibration of astronomical instruments is often done by comparing pulsar times-of-arrival (TOAs) to a reference timing model. In high-energy astronomy, the choi…
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…
Development of the Timing System for the X-Ray Imaging and Spectroscopy Mission
Yukikatsu Terada, Megumi Shidatsu, Makoto Sawada +62
This paper describes the development, design, ground verification, and in-orbit verification, performance measurement, and calibration of the timing system for the X-Ray Imaging an…
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…
Optimization of x-ray event screening using ground and in-orbit data for the Resolve instrument onboard the XRISM satellite
Yuto Mochizuki, Masahiro Tsujimoto, Caroline A. Kilbourne +9
The XRISM (X-Ray Imaging and Spectroscopy Mission) satellite was successfully launched and put into a low-Earth orbit on September 6, 2023 (UT). The Resolve instrument onboard XRIS…