Monthly Notices of the Royal Astronomical Society 527(1) 334-345 2023年10月 [査読有り]
ABSTRACT
The population of optical transients evolving within a time-scale of a few hours or a day (so-called fast optical transients, FOTs) has recently been debated extensively. In particular, our understanding of extragalactic FOTs and their ...
Publications of the Astronomical Society of Japan 74(5) 1069-1094 2022年8月 [査読有り]
Abstract
We report on a one-second-cadence wide-field survey for M-dwarf flares using the Tomo-e Gozen camera mounted on the Kiso Schmidt telescope. We detect 22 flares from M3–M5 dwarfs with a rise time of 5 s ≲ trise ≲ 100 s and an amplitude o...
Jin Beniyama Shigeyuki Sako Ryou Ohsawa Satoshi Takita Naoto Kobayashi Shin-ichiro Okumura Seitaro Urakawa Makoto Yoshikawa Fumihiko Usui Fumi Yoshida Mamoru Doi Yuu Niino Toshikazu Shigeyama Masaomi Tanaka Nozomu Tominaga Tsutomu Aoki Noriaki Arima Ko Arimatsu Toshihiro Kasuga Sohei Kondo Yuki Mori Hidenori Takahashi Jun-ichi Watanabe
PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN 74(4) 877-903 2022年8月 [査読有り]
We report the results of video observations of tiny (diameter less than 100 m) near-Earth objects (NEOs) with Tomo-e Gozen on the Kiso 105 cm Schmidt telescope. The rotational period of a tiny asteroid reflects its dynamical history and physical p...
Yuu Niino Mamoru Doi Shigeyuki Sako Ryou Ohsawa Noriaki Arima Ji-an Jiang Nozomu Tominaga Masaomi Tanaka Di Li Chen-Hui Niu Chao-Wei Tsai Naoto Kobayashi Hidenori Takahashi Sohei Kondo Yuki Mori Tsutomu Aoki Ko Arimatsu Toshihiro Kasuga Shin-ichiro Okumura
ASTROPHYSICAL JOURNAL 931(2) 2022年6月 [査読有り]
We conduct 24.4 fps optical observations of repeating fast radio burst (FRB) 20190520B using Tomo-e Gozen, a high-speed CMOS camera mounted on the Kiso 105 cm Schmidt telescope, simultaneously with radio observations carried out using the Five-hun...
In this Letter we report a discovery of a prominent flash of a peculiar overluminous Type Ia supernova, SN 2020hvf, in about 5 hr of the supernova explosion by the first wide-field mosaic CMOS sensor imager, the Tomo-e Gozen Camera. The fast evolu...
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