Kazuma Mitsuda
Tohoku University
4 Papers
1 Citations
Kazuma Mitsuda is an academic researcher from Tohoku University. The author has contributed to research in topics: CMOS sensor & Image sensor. The author has an hindex of 3, co-authored 4 publications.
Chat about Author
Papers
Luminosity function of faint sporadic meteors measured with a wide-field CMOS mosaic camera Tomo-e PM
Ryou Ohsawa,Shigeyuki Sako,Shigeyuki Sako,Yuki Sarugaku,Fumihiko Usui,Takafumi Ootsubo,Yasunori Fujiwara,Mikiya Sato,Toshihiro Kasuga,Ko Arimatsu,Jun-ichi Watanabe,Mamoru Doi,Naoto Kobayashi,Hidenori Takahashi,Kentaro Motohara,Tomoki Morokuma,Masahiro Konishi,Tsutomu Aoki,Takao Soyano,Ken'ichi Tarusawa,Yuki Mori,Yoshikazu Nakada,Makoto Ichiki,Noriaki Arima,Yuto Kojima,Masahiro Morita,Toshikazu Shigeyama,Yoshifusa Ita,Mitsuru Kokubo,Kazuma Mitsuda,Hiroyuki Maehara,Nozomu Tominaga,Takuya Yamashita,Shiro Ikeda,Mikio Morii,Seitaro Urakawa,Shin-ichiro Okumura,Makoto Yoshikawa +37 more
TL;DR: In this article, a wide-field CMOS mosaic camera, Tomo-e PM, mounted on the 105-cm Schmidt telescope at Kiso Observatory, the University of Tokyo, can monitor a sky of ∼ 1.98 deg 2 at 2 Hz.
1
A 100 pc-scale fast and dense outflow in the narrow-line Seyfert 1 galaxy IRAS 04576+0912
Toshihiro Kawaguchi,Shinobu Ozaki,Hajime Sugai,Kazuya Matsubayashi,Takashi Hattori,Atsushi Shimono,Kentaro Aoki,Yutaka Hayano,Yosuke Minowa,Kazuma Mitsuda,Yasuhito Hashiba +10 more
Abstract: We report the initial result of an adaptive-optics assisted, optical integral-field-unit observation on IRAS04576+0912, the nearest (z=0.039) active galactic nucleus with a prominent blueshift/tail in [O III] emission from a sample of such objects that we have collected from the literature. We aim at addressing the putative quasar-mode feedback process with Subaru/Kyoto 3D II+AO188. The optical waveband (6400--7500 AA) enables us to measure the gas density via the [S II] doublets, in contrast to earlier Near-IR studies. Since the fast [O III] outflow happens only around rapidly growing central black holes, this object is suitable for investigating the black hole-galaxy coevolution. The obtained data cube exhibits blue tail in the [S II] emission at many lenslets. By fitting the spectrum with the high excess flux at the [S II] blue tail, we find the fast (~ 860 km/s), dense (>3000/cc), wide-angle and offset outflow in central 100-pc scales. Although the large opening angle and the high gas outflow-to-accretion ratio may favour the feedback hypothesis, the inferred kinetic power injection rate of this ionized gas outflow seems insufficient to influence the whole host galaxy. A conventional assumption of a low density must have overestimated the feedback process.
The Tomo-e Gozen wide field CMOS camera for the Kiso Schmidt telescope
Shigeyuki Sako,Ryou Ohsawa,Hidenori Takahashi,Yuto Kojima,Mamoru Doi,Naoto Kobayashi,Tsutomu Aoki,Noriaki Arima,Ko Arimatsu,Makoto Ichiki,Shiro Ikeda,Kota Inooka,Yoshifusa Ita,Toshihiro Kasuga,Mitsuru Kokubo,Masahiro Konishi,Hiroyuki Maehara,Noriyuki Matsunaga,Kazuma Mitsuda,Takashi Miyata,Yuki Mori,Mikio Morii,Tomoki Morokuma,Kentaro Motohara,Yoshikazu Nakada,Shin-ichiro Okumura,Yuki Sarugaku,Mikiya Sato,Toshikazu Shigeyama,Takao Soyano,Masaomi Tanaka,Ken'ichi Tarusawa,Nozomu Tominaga,Tomonori Totani,Seitaro Urakawa,Fumihiko Usui,Jun-ichi Watanabe,Takuya Yamashita,Makoto Yoshikawa +38 more
- 06 Jul 2018
TL;DR: The Tomo-e Gozen camera as discussed by the authors is a high-speed camera for the Kiso 10m Schmidt telescope with a field-of-view of 207-deg2 covered by 84 chips of 2k x 1k CMOS image sensors with 19μm pixels.
Evaluation of large pixel CMOS image sensors for the Tomo-e Gozen wide field camera
Yuto Kojima,Shigeyuki Sako,Ryou Ohsawa,Hidenori Takahashi,Mamoru Doi,Naoto Kobayashi,Tsutomu Aoki,Noriaki Arima,Ko Arimatsu,Makoto Ichiki,Shiro Ikeda,Kota Inooka,Yoshifusa Ita,Toshihiro Kasuga,Mitsuru Kokubo,Masahiro Konishi,Hiroyuki Maehara,Noriyuki Matsunaga,Kazuma Mitsuda,Takashi Miyata,Yuki Mori,Mikio Morii,Tomoki Morokuma,Kentaro Motohara,Yoshikazu Nakada,Shin-ichiro Okumura,Yuki Sarugaku,Mikiya Sato,Toshikazu Shigeyama,Takao Soyano,Masaomi Tanaka,Ken'ichi Tarusawa,Nozomu Tominaga,Tomonori Totani,Seitaro Urakawa,Fumihiko Usui,Jun-ichi Watanabe,Takuya Yamashita,Makoto Yoshikawa +38 more
- 20 Jul 2018
TL;DR: The Tomo-e Gozen camera as discussed by the authors is a wide field optical camera for the Kiso 1.05 m f/3.1 Schmidt telescope operated by the University of Tokyo.