Development of UV telescope system for the astronomical observation satellite PETREL
PETREL (Platform for Extra & Terrestrial Remote Examination with LCTF) is a 50kg class satellite with a 80mm-diameter Ultraviolet Telescope (UVT). The science missions of the UVT system are the discovery of high-energy transients, such as supernovae and gravitational-wave electromagnetic sources. To achieve them, the optical system is optimized to detect near-UV photons between 250 and 300 nm. Within a 30-minutes exposure time per every revolution, it surveys a remarkably wide field as 50 deg^2 with a high sensitivity of 20~ AB magnitude. The Board Unit has an on-board computer, which directly analyzes raw images obtained by a back-illuminated CMOS sensor. The computer can detect transients immediately, so as to alert the transient information to ground within 30 minutes of discovery. We will achieve the first UV survey to explore the transients in their early phase and reveal the underlying physical processes.
Authors
- Kei Watanabe (ORCID: https://orcid.org/0000-0002-1902-0453)
- Tohru Nakano (ORCID: https://orcid.org/0000-0002-0966-2823)
- Yu Murata (ORCID: https://orcid.org/0000-0001-7689-2920)
- Masashi Uo
- Hiroyuki Kobayashi (ORCID: https://orcid.org/0000-0003-3777-6403)
- Masafumi Niwano (ORCID: https://orcid.org/0000-0003-3102-7452)
- Naoki Ogino (ORCID: https://orcid.org/0000-0003-2689-9213)
- Hiromasa Tamura
- Nobuyuki Kawai
- Akito Enokuchi
- Takahiro Noguchi (ORCID: https://orcid.org/0009-0001-6300-3386)
- Daiki Kobayashi
- Kiyona Miyamoto (ORCID: https://orcid.org/0000-0002-4242-4974)
- Yusuke Arai
- Norihide Takeyama
- Toshihiro Chujo (ORCID: https://orcid.org/0000-0001-5739-3982)
- Hiroaki Kobayashi (ORCID: https://orcid.org/0000-0001-6705-9515)
- Daisuke Yonetoku (ORCID: https://orcid.org/0000-0002-6371-8306)
- Mai Shirahata (ORCID: https://orcid.org/0000-0001-9301-4425)
- Toshiki Ozawa
- Keito Otsubo
- Eriko Kusunoki
- M. Arimoto (ORCID: https://orcid.org/0000-0003-1250-7872)
- Leo Terada
- Hiroki Nakanishi (ORCID: https://orcid.org/0000-0001-8826-3881)
- Hibiki Seki
- Shunsuke Hayatsu
- Shigeaki Joshima
- Yusaku Ozeki
- Yoichi Yatsu
- Minori Fukuda
- Yuki Amaki
- Katsuki Tashiro (ORCID: https://orcid.org/0009-0004-0075-2496)
- Moe Yasuda
Institutions
- Kanazawa University (JP)
- Tokyo Institute of Technology (JP)
- Tokyo Denki University (JP)
Publication Details
- Published
- 2024-08-21
- DOI
- https://doi.org/10.1117/12.3015955
- Citations
- 3
- Primary Topic
- Photocathodes and Microchannel Plates
- Type
- article
- Field-Weighted Citation Impact
- 0.55