Zobrazeno 1 - 10
of 69
pro vyhledávání: '"Tomohiko Sekiguchi"'
Autor:
Takehiko Arai, Tatsuaki Okada, Satoshi Tanaka, Tetsuya Fukuhara, Hirohide Demura, Toru Kouyama, Naoya Sakatani, Yuri Shimaki, Hiroki Senshu, Tomohiko Sekiguchi, Jun Takita, Naru Hirata, Yukio Yamamoto
Publikováno v:
Earth, Planets and Space, Vol 73, Iss 1, Pp 1-11 (2021)
Abstract The thermal infrared imager (TIR) onboard the Hayabusa2 spacecraft performed thermographic observations of the asteroid 162173 Ryugu (1999 JU $$_3$$ 3 ) from June 2018 to November 2019. Our previous reports revealed that the surface of Ryugu
Externí odkaz:
https://doaj.org/article/1265a5ac72ed45f09f0e31c8f86c7a71
Autor:
Jin Beniyama, Ryou Ohsawa, Chrysa Avdellidou, Shigeyuki Sako, Satoshi Takita, Masateru Ishiguro, Tomohiko Sekiguchi, Fumihiko Usui, Shinichi W. Kinoshita, Kianhong Lee, Asami Takumi, Marin Ferrais, Emmanuël Jehin
Publikováno v:
The Astronomical Journal, Vol 166, Iss 6, p 229 (2023)
Studying small near-Earth asteroids is important in order to understand their dynamical histories and origins as well as to mitigate the damage caused by asteroid impacts on Earth. We report the results of multicolor photometry of the tiny near-Earth
Externí odkaz:
https://doaj.org/article/f40b46fed6c5424ab3458d4bc3ad8264
Autor:
Jin Beniyama, Shigeyuki Sako, Katsuhito Ohtsuka, Tomohiko Sekiguchi, Masateru Ishiguro, Daisuke Kuroda, Seirato Urakawa, Fumi Yoshida, Asami Takumi, Natsuho Maeda, Jun Takahashi, Seiko Takagi, Hiroaki Saito, Tatsuya Nakaoka, Tomoki Saito, Tomohito Ohshima, Ryo Imazawa, Masato Kagitani, Satoshi Takita
Publikováno v:
The Astrophysical Journal, Vol 955, Iss 2, p 143 (2023)
Asteroid systems such as binaries and pairs are indicative of the physical properties and dynamical histories of small solar system bodies. Although numerous observational and theoretical studies have been carried out, the formation mechanism of aste
Externí odkaz:
https://doaj.org/article/51d30c8f7a144c9690d1c06942df4e31
Autor:
Takashi Ito, Masateru Ishiguro, Tomoko Arai, Masataka Imai, Tomohiko Sekiguchi, Yoonsoo P. Bach, Yuna G. Kwon, Masanori Kobayashi, Ryo Ishimaru, Hiroyuki Naito, Makoto Watanabe, Kiyoshi Kuramoto
Publikováno v:
Nature Communications, Vol 9, Iss 1, Pp 1-8 (2018)
(3200) Phaethon is a near-Earth asteroid discovered in 1983 that has large inclination and eccentricity. Here, the authors perform polarimetric observation of Phaethon over a wide range of solar phase angle and report that the asteroid exhibits a ver
Externí odkaz:
https://doaj.org/article/6fb672c53c98450da24b7565b8420984
Autor:
Jin Beniyama, Tomohiko Sekiguchi, Daisuke Kuroda, Tomoko Arai, Ko Ishibashi, Masateru Ishiguro, Fumi Yoshida, Hiroki Senshu, Takafumi Ootsubo, Shigeyuki Sako, Ryou Ohsawa, Satoshi Takita, Jooyeon Geem, Yoonsoo P Bach
Accurate estimation of brightness of (3200) Phaethon up to lower phase angles are essential for planning of the on-board camera of the DESTINY$^{+}$ mission. We have carried out intensive observations of Phaethon in the optical wavelength ($g$, $r$,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a47bd1b37961c80f92b94c62ecff4ad7
http://arxiv.org/abs/2212.09323
http://arxiv.org/abs/2212.09323
Autor:
Hiroyuki Naito, Masateru Ishiguro, Jooyeon Geem, Hiroshi Akitaya, Ryo Okazaki, Maxime Devogele, Seiko Takagi, L. Siltala, Daisuke Kuroda, Jinguk Seo, Mitsuteru Sato, Jun Takahashi, Masataka Imai, Sunao Hasegawa, Fumi Yoshida, Tomoko Arai, Kiyoshi Kuramoto, Sunho Jin, Mikael Granvik, Takashi Ito, Yoonsoo P. Bach, Makoto Watanabe, Myung Gyoon Lee, Yuna G. Kwon, Tatsuharu Oono, Grigori Fedorets, Katsuhito Ohtsuka, Tomohiko Sekiguchi, Myungshin Im
Publikováno v:
Ishiguro, M, Bach, Y P, Geem, J, Naito, H, Kuroda, D, Im, M, Lee, M G, Seo, J, Jin, S, Kwon, Y G, Oono, T, Takagi, S, Sato, M, Kuramoto, K, Ito, T, Hasegawa, S, Yoshida, F, Arai, T, Akitaya, H, Sekiguchi, T, Okazaki, R, Imai, M, Ohtsuka, K, Watanabe, M, Takahashi, J, Devogèle, M, Fedorets, G, Siltala, L & Granvik, M 2022, ' Polarimetric properties of the near-Sun asteroid (155140) 2005 UD in comparison with other asteroids and meteoritic samples ', Monthly Notices of the Royal Astronomical Society, vol. 509, no. 3, pp. 4128-4142 . https://doi.org/10.1093/mnras/stab3198
The investigation of asteroids near the Sun is important for understanding the final evolutionary stage of primitive solar system objects. A near-Sun asteroid, (155140) 2005 UD, has orbital elements similar to those of (3200) Phaethon (the target ast
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::111937f824912d10f41fd89147e69725
https://doi.org/10.1093/mnras/stab3198
https://doi.org/10.1093/mnras/stab3198
Autor:
Tatsuaki Okada, Satoshi Tanaka, Naoya Sakatani, Yuri Shimaki, Takehiko Arai, Hiroki Senshu, Hirohide Demura, Tomohiko Sekiguchi, Toru Kouyama, Masanori Kanamaru, Takuya Ishizaki
Thermal properties of C-type asteroid Ryugu have been investigated through remote sensing using the Thermal Infrared Imager (TIR), on the surface using the radiometer MARA on MASCOT lander, and the analysis of return sample. The global average and th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f3b00cb537212ef529dd3cc582c46713
https://doi.org/10.5194/epsc2022-1187
https://doi.org/10.5194/epsc2022-1187
Autor:
Tatsuaki Okada, Satoshi Tanaka, Naoya Sakatani, Yuri Shimaki, Takehiko Arai, Hiroki Senshu, Hirohide Demura, Tomohiko Sekiguchi, Toru Kouyama, Masanori Kanamaru, Takuya Ishizaki
Thermal Infrared Imager TIRI onboard Hera is now being developed for the investigation of the binary asteroid Didymos and Dimorphos in the European Space Agency Hera mission. This instrument uses a heritage from the Thermal Infrared Imager TIR on Hay
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::03472fdf5f47b6f1bbf341df2ec98b0b
https://doi.org/10.5194/epsc2022-1191
https://doi.org/10.5194/epsc2022-1191
Autor:
Hiroki Senshu, Toru Kouyama, Yuri Shimaki, Tetsuya Fukuhara, Hirohide Demura, Jun Takita, Satoshi Tanaka, Naoya Sakatani, Tomohiko Sekiguchi, Naru Hirata, Takehiko Arai, Tatsuaki Okada, Yukio Yamamoto
Publikováno v:
Earth, Planets and Space, Vol 73, Iss 1, Pp 1-11 (2021)
The thermal infrared imager (TIR) onboard the Hayabusa2 spacecraft performed thermographic observations of the asteroid 162173 Ryugu (1999 JU$$_3$$ 3 ) from June 2018 to November 2019. Our previous reports revealed that the surface of Ryugu was globa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::31eceaa0670a3b8f26002020d8d80ea1
https://doaj.org/article/1265a5ac72ed45f09f0e31c8f86c7a71
https://doaj.org/article/1265a5ac72ed45f09f0e31c8f86c7a71
Autor:
Yuri Shimaki, Jens Biele, Kohei Kitazato, Tomohiko Sekiguchi, Maximilian Hamm, Sunao Hasegawa, Matthias Grott, Makoto Yoshikawa, Takehiko Arai, Kentaro Suko, Tsuneo Matsunaga, Naoyuki Hirata, Marco Delbo, Takehiko Wada, Sei-ichiro Watanabe, Thomas Mueller, Naoya Sakatani, Tetsuya Fukuhara, Axel Hagermann, Takeshi Imamura, Hiroki Senshu, Jörn Helbert, Takanao Saiki, Naru Hirata, Fuyuto Terui, Yoshiko Ogawa, Hirohide Demura, Jun Takita, Tatsuaki Okada, Satoru Nakazawa, Yukio Yamamoto, Makoto Taguchi, Yuichi Tsuda, Hayabusa Tir Team, Satoshi Tanaka, Toru Kouyama
Publikováno v:
TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES, AEROSPACE TECHNOLOGY JAPAN. 19:654-659
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9d8a629fc4fad31463662e196ec118f7
https://doi.org/10.2322/tastj.19.654
https://doi.org/10.2322/tastj.19.654