The GRAMS mission for MeV gamma-ray astronomy and dark matter search

Hirokazu Odaka; Kazutaka Aoyama; Shota Arai; Shintaro Arai; Tsuguo Aramaki; Jonathan Asaadi; Aya Bamba; John Barry; Manel Errando; Lorenzo Fabris; Tatsuki Fujiwara; Yasushi Fukazawa; Kouichi Hagino; Tomohiro Hakamata; Utano Hijikata; Nagisa Hiroshima; Masahiro Ichihashi; Yuto Ichinohe; Yoshiyuki Inoue; Koki Ishikawa; Kota Ishiwata; Toshiya Iwata; Georgia Karagiorgi; Tatsuaki Kato; Hodaka Kawamura; Dmitry Khangulyan; Jon Leyva; Emma Malabanan; Akshay Malige; John Mitchell; Reshmi Mukherjee; Riki Nakajima; Kazuhiro Nakazawa; Nga Nguyen; Keigo Okuma; Kerstin Perez; Nabin Poudyal; Melissa Rivera; Ibrahim Safa; William Seligman; Ruo-Yu Shang; Mihir Shetty; Tiga Shimizu; Kentaro Shirahama; Takuya Shiraishi; Sonya Smith; Yusuke Suda; Arathi Suraj; Hiromitsu Takahashi; Satoshi Takashima; Tsubasa Tamba; Masashi Tanaka; Svanik Tandon; Hinako Taniguchi; Ryutaro Tatsumi; John Tomsick; Naomi Tsuji; Yusuke Uchida; Yorinobu Utsumi; Shin Watanabe; Timothy Wessling-Resnick; Yutaro Yano; Kazushi Yawata; Hiroki Yoneda; Kohei Yorita; Marina Yoshimoto; Jiancheng Zeng

doi:10.1117/12.3018610

22 August 2024 The GRAMS mission for MeV gamma-ray astronomy and dark matter search

Hirokazu Odaka, Kazutaka Aoyama, Shota Arai, Shintaro Arai, Tsuguo Aramaki, Jonathan Asaadi, Aya Bamba, John Barry, Manel Errando, Lorenzo Fabris, Tatsuki Fujiwara, Yasushi Fukazawa, Kouichi Hagino, Tomohiro Hakamata, Utano Hijikata, Nagisa Hiroshima, Masahiro Ichihashi, Yuto Ichinohe, Yoshiyuki Inoue, Koki Ishikawa, Kota Ishiwata, Toshiya Iwata, Georgia Karagiorgi, Tatsuaki Kato, Hodaka Kawamura, Dmitry Khangulyan, Jon Leyva, Emma Malabanan, Akshay Malige, John Mitchell, Reshmi Mukherjee, Riki Nakajima, Kazuhiro Nakazawa, Nga Nguyen, Keigo Okuma, Kerstin Perez, Nabin Poudyal, Melissa Rivera, Ibrahim Safa, William Seligman, Ruo-Yu Shang, Mihir Shetty, Tiga Shimizu, Kentaro Shirahama, Takuya Shiraishi, Sonya Smith, Yusuke Suda, Arathi Suraj, Hiromitsu Takahashi, Satoshi Takashima, Tsubasa Tamba, Masashi Tanaka, Svanik Tandon, Hinako Taniguchi, Ryutaro Tatsumi, John Tomsick, Naomi Tsuji, Yusuke Uchida, Yorinobu Utsumi, Shin Watanabe, Timothy Wessling-Resnick, Yutaro Yano, Kazushi Yawata, Hiroki Yoneda, Kohei Yorita, Marina Yoshimoto, Jiancheng Zeng

Author Affiliations +

Proceedings Volume 13093, Space Telescopes and Instrumentation 2024: Ultraviolet to Gamma Ray; 130932N (2024) https://doi.org/10.1117/12.3018610
Event: SPIE Astronomical Telescopes + Instrumentation, 2024, Yokohama, Japan

Abstract

GRAMS (Gamma-Ray and AntiMatter Survey) is a next-generation proposed balloon-borne/satellite-based mission aimed at high sensitivity MeV gamma-ray astrophysical observations and background-free indirect dark matter search via hadronic antiparticles. The main detector of GRAMS is a meter-scale liquid argon time projection chamber (LArTPC). The adoption of liquid argon as detector material allows us to produce an unprecedentedly large effective area instrument both for cosmic MeV gamma rays of 0.5-20 MeV and antiparticles of dark matter origin. This large effective area, which will exceed 1000 cm2, is necessary for measuring faint gamma-ray signals of nuclear line emissions from energetic phenomena such as supernovae as well as for observing short-duration transient objects including gamma-ray bursts with high photon statistics. In this talk, we present the mission concept and design, the current proof-of-concept studies using prototype LArTPCs, and an engineering balloon flight conducted in 2023.

Conference Presentation

Citation Download Citation

Hirokazu Odaka, Kazutaka Aoyama, Shota Arai, Shintaro Arai, Tsuguo Aramaki, Jonathan Asaadi, Aya Bamba, John Barry, Manel Errando, Lorenzo Fabris, Tatsuki Fujiwara, Yasushi Fukazawa, Kouichi Hagino, Tomohiro Hakamata, Utano Hijikata, Nagisa Hiroshima, Masahiro Ichihashi, Yuto Ichinohe, Yoshiyuki Inoue, Koki Ishikawa, Kota Ishiwata, Toshiya Iwata, Georgia Karagiorgi, Tatsuaki Kato, Hodaka Kawamura, Dmitry Khangulyan, Jon Leyva, Emma Malabanan, Akshay Malige, John Mitchell, Reshmi Mukherjee, Riki Nakajima, Kazuhiro Nakazawa, Nga Nguyen, Keigo Okuma, Kerstin Perez, Nabin Poudyal, Melissa Rivera, Ibrahim Safa, William Seligman, Ruo-Yu Shang, Mihir Shetty, Tiga Shimizu, Kentaro Shirahama, Takuya Shiraishi, Sonya Smith, Yusuke Suda, Arathi Suraj, Hiromitsu Takahashi, Satoshi Takashima, Tsubasa Tamba, Masashi Tanaka, Svanik Tandon, Hinako Taniguchi, Ryutaro Tatsumi, John Tomsick, Naomi Tsuji, Yusuke Uchida, Yorinobu Utsumi, Shin Watanabe, Timothy Wessling-Resnick, Yutaro Yano, Kazushi Yawata, Hiroki Yoneda, Kohei Yorita, Marina Yoshimoto, and Jiancheng Zeng "The GRAMS mission for MeV gamma-ray astronomy and dark matter search", Proc. SPIE 13093, Space Telescopes and Instrumentation 2024: Ultraviolet to Gamma Ray, 130932N (22 August 2024); https://doi.org/10.1117/12.3018610

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