Development of the software algorithm for detection of gamma-ray bursts for HiZ-GUNDAM mission

Takumi Togashi; Shuichi Gunji; Ryuji Sato; Keito Watanabe; Haruaki Niinuma; Daisuke Yonetoku; Hiroshi Akitaya; Akihiro Doi; Hatsune Goto; Yousuke Kono; Hideo Matsuhara; Tatehiro Mihara; Takanori Sakamoto; Tatsuya Sawano

doi:10.1117/12.3018566

21 August 2024 Development of the software algorithm for detection of gamma-ray bursts for HiZ-GUNDAM mission

Takumi Togashi, Shuichi Gunji, Ryuji Sato, Keito Watanabe, Haruaki Niinuma, Daisuke Yonetoku, Hiroshi Akitaya, Akihiro Doi, Hatsune Goto, Yousuke Kono, Hideo Matsuhara, Tatehiro Mihara, Takanori Sakamoto, Tatsuya Sawano

Author Affiliations +

Proceedings Volume 13093, Space Telescopes and Instrumentation 2024: Ultraviolet to Gamma Ray; 130936B (2024) https://doi.org/10.1117/12.3018566
Event: SPIE Astronomical Telescopes + Instrumentation, 2024, Yokohama, Japan

Conference Poster

Abstract

HiZ-GUNDAM is a future satellite mission designed for exploring the early universe using gamma-ray bursts (GRBs). The satellite is equipped with two main instruments: a wide field X-ray monitor (WFXM) and a near infrared telescope (NIRT). And its mission data processing unit (MPU) plays an important role in data processing. When a transient source occurs and the X-rays enter the WFXM, a cross-shaped image is produced on the focal plane image sensor. Once the WFXM’s data are sent to the MPU, the direction of the source is determined from the center position. Furthermore, if there are no known stellar objects in this direction and if they are not hot pixels or other anomalies, the event is classified as a GRB candidate. To evaluate the software for this series of judgments, we investigated the angular resolution by this software algorithm utilizing the cross image obtained by the lobster eye optics (LEO).

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

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Takumi Togashi, Shuichi Gunji, Ryuji Sato, Keito Watanabe, Haruaki Niinuma, Daisuke Yonetoku, Hiroshi Akitaya, Akihiro Doi, Hatsune Goto, Yousuke Kono, Hideo Matsuhara, Tatehiro Mihara, Takanori Sakamoto, and Tatsuya Sawano "Development of the software algorithm for detection of gamma-ray bursts for HiZ-GUNDAM mission", Proc. SPIE 13093, Space Telescopes and Instrumentation 2024: Ultraviolet to Gamma Ray, 130936B (21 August 2024); https://doi.org/10.1117/12.3018566

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