森井幹雄

研究者氏名	森井幹雄
	モリイミキオ
URL
所属	国立研究開発法人宇宙航空研究開発機構
部署	宇宙科学研究所
職名	主任研究開発員
科研費研究者番号	90392810
J-Global ID	202201019169253149

論文

Hitomi HXT deconvolution imaging of the Crab Nebula dazzled by the Crab pulsar

Mikio Morii Yoshitomo Maeda Hisamitsu Awaki Kouichi Hagino Manabu Ishida Koji Mori

Publications of the Astronomical Society of Japan 2024年2月

Abstract

We develop a new deconvolution method to recover the precise Crab Nebula image taken by the Hitomi HXT, suppressing the artifact due to the bright Crab pulsar. We extend the Richardson–Lucy method, introducing two components correspondi...

MAXI observations of gamma-ray bursts

Motoko Serino Takanori Sakamoto Nobuyuki Kawai Atsumasa Yoshida Masanori Ohno Yuji Ogawa Yasunori Nishimura Kosuke Fukushima Masaya Higa Kazuto Ishikawa Masaki Ishikawa Taiki Kawamuro Masashi Kimura Masaru Matsuoka Tatehiro Mihara Mikio Morii Yujin E. Nakagawa Satoshi Nakahira Motoki Nakajima Yuki Nakano Hitoshi Negoro Takuya Onodera Masayuki Sasaki Megumi Shidatsu Juri Sugimoto Mutsumi Sugizaki Fumitoshi Suwa Kazuhiko Suzuki Yutaro Tachibana Toshihiro Takagi Takahiro Toizumi Hiroshi Tomida Yohko Tsuboi Hiroshi Tsunemi Yoshihiro Ueda Shiro Ueno Ryuichi Usui Hisaki Yamada Takayuki Yamamoto Kazutaka Yamaoka Makoto Yamauchi Koshiro Yoshidome Taketoshi Yoshii

PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN 66(5) 2014年10月

The Monitor of All-sky X-ray Image (MAXI) Gas Slit Camera (GSC) detects gamma-ray bursts (GRBs), including bursts with soft spectra, such as X-ray flashes (XRFs). MAXI/GSC is sensitive to the energy range from 2 to 30 keV. This energy range is low...

MISC

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Relationship between radar cross section and optical magnitude based on radar and optical simultaneous observations of faint meteors

Ryou Ohsawa Akira Hirota Kohei Morita Shinsuke Abe Daniel Kastinen Johan Kero Csilla Szasz Yasunori Fujiwara Takuji Nakamura Koji Nishimura Shigeyuki Sako Jun-ichi Watanabe Tsutomu Aoki Noriaki Arima Ko Arimatsu Mamoru Doi Makoto Ichiki Shiro Ikeda Yoshifusa Ita Toshihiro Kasuga Naoto Kobayashi Mitsuru Kokubo Masahiro Konishi Hiroyuki Maehara Takashi Miyata Yuki Mori Mikio Morii Tomoki Morokuma Kentaro Motohara Yoshikazu Nakada Shin-ichiro Okumura Yuki Sarugaku Mikiya Sato Toshikazu Shigeyama Takao Soyano Hidenori Takahashi Masaomi Tanaka Ken’ichi Tarusawa Nozomu Tominaga Seitaro Urakawa Fumihiko Usui Takuya Yamashita Makoto Yoshikawa

Planetary and Space Science 194 105011 2020年12月

An optical search for transients lasting a few seconds

Michael W Richmond Masaomi Tanaka Tomoki Morokuma Shigeyuki Sako Ryou Ohsawa Noriaki Arima Nozomu Tominaga Mamoru Doi Tsutomu Aoki Ko Arimatsu Makoto Ichiki Shiro Ikeda Yoshifusa Ita Toshihiro Kasuga Koji S Kawabata Hideyo Kawakita Naoto Kobayashi Mitsuru Kokubo Masahiro Konishi Hiroyuki Maehara Hiroyuki Mito Takashi Miyata Yuki Mori Mikio Morii Kentaro Motohara Yoshikazu Nakada Shin-Ichiro Okumura Hiroki Onozato Yuki Sarugaku Mikiya Sato Toshikazu Shigeyama Takao Soyano Hidenori Takahashi Ataru Tanikawa Ken’ichi Tarusawa Seitaro Urakawa Fumihiko Usui Junichi Watanabe Takuya Yamashita Makoto Yoshikawa

Publications of the Astronomical Society of Japan 72(1) 2019年12月

Abstract
Using a prototype of the Tomo-e Gozen wide-field CMOS mosaic camera, we acquire wide-field optical images at a cadence of

Hz and search them for transient sources of duration 1.5 to

s. Over t...

New Constraint on the Atmosphere of (50000) Quaoar from a Stellar Occultation

Ko Arimatsu Ryou Ohsawa George L. Hashimoto Seitaro Urakawa Jun Takahashi Miyako Tozuka Yoichi Itoh Misato Yamashita Fumihiko Usui Tsutomu Aoki Noriaki Arima Mamoru Doi Makoto Ichiki Shiro Ikeda Yoshifusa Ita Toshihiro Kasuga Naoto Kobayashi Mitsuru Kokubo Masahiro Konishi Hiroyuki Maehara Noriyuki Matsunaga Takashi Miyata Mikio Morii Tomoki Morokuma Kentaro Motohara Yoshikazu Nakada Shin-ichiro Okumura Shigeyuki Sako Yuki Sarugaku Mikiya Sato Toshikazu Shigeyama Takao Soyano Hidenori Takahashi Ken’ichi Tarusawa Nozomu Tominaga Jun-ichi Watanabe Takuya Yamashita Makoto Yoshikawa

The Astronomical Journal 158(6) 236 2019年11月

Concept for an X-ray telescope system with an angular resolution booster

Yoshitomo Maeda Ryo Iizuka Takayuki Hayashi Toshiki Sato Nozomi Nakaniwa Mai Takeo Hitomi Suzuki Manabu Ishida Shiro Ikeda Mikio Morii

Publications of the Astronomical Society of Japan 71(5) 2019年9月

ABSTRACT
We present a concept for an X-ray imaging system with a high angular resolution and moderate sensitivity. In this concept, a two-dimensional detector, i.e., an imager, is put at a slightly out-of-focus po...

Genus Statistic Applied to the X-Ray Remnant of SN 1572: Clues to the Clumpy Ejecta Structure of Type Ia Supernovae

Toshiki Sato John P. Hughes Brian J. Williams Mikio Morii

The Astrophysical Journal 879(2) 64 2019年7月