Zobrazeno 1 - 10
of 120
pro vyhledávání: '"Urakawa, Seitaro"'
Autor:
Jin, Sunho, Ishiguro, Masateru, Geem, Jooyeon, Naito, Hiroyuki, Takahashi, Jun, Akitaya, Hiroshi, Kuroda, Daisuke, Urakawa, Seitaro, Takagi, Seiko, Oono, Tatsuharu, Sekiguchi, Tomohiko, Perna, Davide, Ieva, Simone, Bach, Yoonsoo P., Imazawa, Ryo, Kawabata, Koji S., Watanabe, Makoto, Jo, Hangbin
Context. (4015) Wilson-Harrington (hereafter, WH) was discovered as a comet in 1949 but has a dynamical property consistent with that of a near-Earth asteroid. Although there is a report that the 1949 activity is associated with an ion tail, the caus
Externí odkaz:
http://arxiv.org/abs/2409.06448
Autor:
Kawata, Daisuke, Kawahara, Hajime, Gouda, Naoteru, Secrest, Nathan J., Kano, Ryouhei, Kataza, Hirokazu, Isobe, Naoki, Ohsawa, Ryou, Usui, Fumihiko, Yamada, Yoshiyuki, Graham, Alister W., Pettitt, Alex R., Asada, Hideki, Baba, Junichi, Bekki, Kenji, Dorland, Bryan N., Fujii, Michiko, Fukui, Akihiko, Hattori, Kohei, Hirano, Teruyuki, Kamizuka, Takafumi, Kashima, Shingo, Kawanaka, Norita, Kawashima, Yui, Klioner, Sergei A., Kodama, Takanori, Koshimoto, Naoki, Kotani, Takayuki, Kuzuhara, Masayuki, Levine, Stephen E., Majewski, Steven R., Masuda, Kento, Matsunaga, Noriyuki, Miyakawa, Kohei, Miyoshi, Makoko, Morihana, Kumiko, Nishi, Ryoichi, Notsu, Yuta, Omiya, Masashi, Sanders, Jason, Tanikawa, Ataru, Tsujimoto, Masahiro, Yano, Taihei, Aizawa, Masataka, Arimatsu, Ko, Biermann, Michael, Boehm, Celine, Chiba, Masashi, Debattista, Victor P., Gerhard, Ortwin, Hirabayashi, Masayuki, Hobbs, David, Ikenoue, Bungo, Izumiura, Hideyuki, Jordi, Carme, Kohara, Naoki, Löffler, Wolfgang, Luri, Xavier, Mase, Ichiro, Miglio, Andrea, Mitsuda, Kazuhisa, Newswander, Trent, Nishiyama, Shogo, Obuchi, Yoshiyuki, Ootsubo, Takafumi, Ouchi, Masami, Ozaki, Masanobu, Perryman, Michael, Prusti, Timo, Ramos, Pau, Read, Justin I., Rich, R. Michael, Schönrich, Ralph, Shikauchi, Minori, Shimizu, Risa, Suematsu, Yoshinori, Tada, Shotaro, Takahashi, Aoi, Tatekawa, Takayuki, Tatsumi, Daisuke, Tsujimoto, Takuji, Tsuzuki, Toshihiro, Urakawa, Seitaro, Uraguchi, Fumihiro, Utsunomiya, Shin, Van Eylen, Vincent, van Leeuwen, Floor, Wada, Takehiko, Walton, Nicholas A.
Japan Astrometry Satellite Mission for INfrared Exploration (JASMINE) is a planned M-class science space mission by the Institute of Space and Astronautical Science, the Japan Aerospace Exploration Agency. JASMINE has two main science goals. One is t
Externí odkaz:
http://arxiv.org/abs/2307.05666
Autor:
Beniyama, Jin, Sako, Shigeyuki, Ohtsuka, Katsuhito, Sekiguchi, Tomohiko, Ishiguro, Masateru, Kuroda, Daisuke, Urakawa, Seitaro, Yoshida, Fumi, Takumi, Asami, Maeda, Natsuho, Takahashi, Jun, Takagi, Seiko, Saito, Hiroaki, Nakaoka, Tatsuya, Saito, Tomoki, Ohshima, Tomohito, Imazawa, Ryo, Kagitani, Masato, Takita, Satoshi
Publikováno v:
ApJ, 955, 143 (2023)
Asteroid systems such as binaries and pairs are indicative of physical properties and dynamical histories of the Small Solar System Bodies. Although numerous observational and theoretical studies have been carried out, the formation mechanism of aste
Externí odkaz:
http://arxiv.org/abs/2306.15506
Autor:
Beniyama, Jin, Sako, Shigeyuki, Ohsawa, Ryou, Takita, Satoshi, Kobayashi, Naoto, Okumura, Shin-ichiro, Urakawa, Seitaro, Yoshikawa, Makoto, Usui, Fumihiko, Yoshida, Fumi, Doi, Mamoru, Niino, Yuu, Shigeyama, Toshikazu, Tanaka, Masaomi, Tominaga, Nozomu, Aoki, Tsutomu, Arima, Noriaki, Arimatsu, Ko, Kasuga, Toshihiro, Kondo, Sohei, Mori, Yuki, Takahashi, Hidenori, Watanabe, Jun-ichi
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. A rotational period of a tiny asteroid reflects its dynamical history and physical proper
Externí odkaz:
http://arxiv.org/abs/2207.07071
Autor:
Jiang, Ji-an, Maeda, Keiichi, Kawabata, Miho, Doi, Mamoru, Shigeyama, Toshikazu, Tanaka, Masaomi, Tominaga, Nozomu, Nomoto, Ken'ichi, Niino, Yuu, Sako, Shigeyuki, Ohsawa, Ryou, Schramm, Malte, Yamanaka, Masayuki, Kobayashi, Naoto, Takahashi, Hidenori, Nakaoka, Tatsuya, Kawabata, Koji S., Isogai, Keisuke, Aoki, Tsutomu, Kondo, Sohei, Mori, Yuki, Arimatsu, Ko, Kasuga, Toshihiro, Okumura, Shin-ichiro, Urakawa, Seitaro, Reichart, Daniel E., Taguchi, Kenta, Arima, Noriaki, Beniyama, Jin, Uno, Kohki, Hamada, Taisei
Publikováno v:
ApJL 923, L8 (2021)
In this Letter we report a discovery of a prominent flash of a peculiar overluminous Type Ia supernova, SN 2020hvf, in about 5 hours of the supernova explosion by the first wide-field mosaic CMOS sensor imager, the Tomo-e Gozen Camera. The fast evolu
Externí odkaz:
http://arxiv.org/abs/2111.09470
Autor:
Chang, Chan-Kao, Chen, Ying-Tung, Fraser, Wesley C., Yoshida, Fumi, Lehner, Matthew J., Wang, Shiang-Yu, Kavelaars, JJ, Pike, Rosemary E., Alexandersen, Mike, Ito, Takashi, Choi, Young-Jun, Contreras, A. Paula Granados, JeongAhn, Youngmin, Ji, Jianghui, Kim, Myung-Jin, Lawler, Samantha M., Li, Jian, Lin, Zhong-Yi, Lykawka, Patryk Sofia, Moon, Hong-Kyu, More, Surhud, Munoz-Gutierrez, Marco, Ohtsuki, Keiji, Terai, Tsuyoshi, Urakawa, Seitaro, Zhang, Hui, Zhao, Hai-Bin, Collaboration, Ji-Lin Zhou. The FOSSIL
Rotation periods of 53 small (diameters $2 < D < 40$ km) Jupiter Trojans (JTs) were derived using the high-cadence light curves obtained by the FOSSIL phase I survey, a Subaru/Hyper Suprime-Cam intensive program. These are the first reported periods
Externí odkaz:
http://arxiv.org/abs/2107.06685
Autor:
Ohsawa, Ryou, Hirota, Akira, Morita, Kohei, Abe, Shinsuke, Kastinen, Daniel, Kero, Johan, Szasz, Csilla, Fujiwara, Yasunori, Nakamura, Takuji, Nishimura, Koji, Sako, Shigeyuki, Watanabe, Jun-ichi, Aoki, Tsutomu, Arima, Noriaki, Arimatsu, Ko, Doi, Mamoru, Ichiki, Makoto, Ikeda, Shiro, Ita, Yoshifusa, Kasuga, Toshihiro, Kobayashi, Naoto, Kokubo, Mitsuru, Konishi, Masahiro, Maehara, Hiroyuki, Miyata, Takashi, Mori, Yuki, Morii, Mikio, Morokuma, Tomoki, Motohara, Kentaro, Nakada, Yoshikazu, Okumura, Shin-ichiro, Sarugaku, Yuki, Sato, Mikiya, Shigeyama, Toshikazu, Soyano, Takao, Takahashi, Hidenori, Tanaka, Masaomi, Tarusawa, Ken'ichi, Tominaga, Nozomu, Urakawa, Seitaro, Usui, Fumihiko, Yamashita, Takuya, Yoshikawa, Makoto
Publikováno v:
Planetary and Space Science 194 (2020) 10511
Radar and optical simultaneous observations of meteors are important to understand the size distribution of the interplanetary dust. However, faint meteors detected by high power large aperture radar observations, which are typically as faint as 10 m
Externí odkaz:
http://arxiv.org/abs/2008.08942
Autor:
Richmond, Michael W., Tanaka, Masaomi, Morokuma, Tomoki, Sako, Shigeyuki, Ohsawa, Ryou, Arima, Noriaki, Tominaga, Nozomu, Doi, Mamoru, Aoki, Tsutomu, Arimatsu, Ko, Ichiki, Makoto, Ikeda, Shiro, Ita, Yoshifusa, Kasuga, Toshihiro, Kawabata, Koji S., Kawakita, Hideyo, Kobayashi, Naoto, Kokubo, Mitsuru, Konishi, Masahiro, Maehara, Hiroyuki, Mito, Hiroyuki, Miyata, Takashi, Mori, Yuki, Morii, Mikio, Motohara, Kentaro, Nakada, Yoshikazu, Shin-Ich, Onozato, Hiroki, Sarugaku, Yuki, Sato, Mikiya, Shigeyama, Toshikazu, Soyano, Takao, Takahashi, Hidenori, Tanikawa, Ataru, Tarusawa, Ken'ichi, Urakawa, Seitaro, Usui, Fumihiko, Watanabe, Junichi, Yamashita, Takuya, Yoshikawa, Makoto
Using a prototype of the Tomo-e Gozen wide-field CMOS mosaic camera, we acquire wide-field optical images at a cadence of 2 Hz and search them for transient sources of duration 1.5 to 11.5 seconds. Over the course of eight nights, our survey encompas
Externí odkaz:
http://arxiv.org/abs/1910.11343
Autor:
Arimatsu, Ko, Ohsawa, Ryou, Hashimoto, George L., Urakawa, Seitaro, Takahashi, Jun, Tozuka, Miyako, Itoh, Yoichi, Yamashita, Misato, Usui, Fumihiko, Aoki, Tsutomu, Arima, Noriaki, Doi, Mamoru, Ichiki, Makoto, Ikeda, Shiro, Ita, Yoshifusa, Kasuga, Toshihiro, Kobayashi, Naoto, Kokubo, Mitsuru, Konishi, Masahiro, Maehara, Hiroyuki, Matsunaga, Noriyuki, Miyata, Takashi, Morii, Mikio, Morokuma, Tomoki, Motohara, Kentaro, Nakada, Yoshikazu, Okumura, Shin-ichiro, Sako, Shigeyuki, Sarugaku, Yuki, Sato, Mikiya, Shigeyama, Toshikazu, Soyano, Takao, Takahashi, Hidenori, Tarusawa, Ken'ichi, Tominaga, Nozomu, Watanabe, Jun-ichi, Yamashita, Takuya, Yoshikawa, Makoto
We report observations of a stellar occultation by the classical Kuiper belt object (50000) Quaoar occurred on 28 June 2019. A single-chord high-cadence (2 Hz) photometry dataset was obtained with the Tomo-e Gozen CMOS camera mounted on the 1.05 m Sc
Externí odkaz:
http://arxiv.org/abs/1910.09988
Autor:
Okazaki, Ryo, Sekiguchi, Tomohiko, Ishiguro, Masateru, Naito, Hiroyuki, Urakawa, Seitaro, Imai, Masataka, Ono, Tatsuharu, Warner, Brian D., Watanabe, Makoto
We report on optical polarimetric observations of two Apollo type near-Earth asteroids, (422699) 2000 PD3 and (3200) Phaethon, and BVRI photometric observations of 2000 PD3 using the 1.6m Pirka telescope in 2017. We derived the geometric albedo of pv
Externí odkaz:
http://arxiv.org/abs/1910.04305