Zobrazeno 1 - 10 of 245 pro vyhledávání: '"Michitoshi YOSHIDA"'
1
Akademický článek
Two Long-period Giant Planets around Two Giant Stars: HD 112570 and HD 154391
Autor: Guang-Yao Xiao, Huan-Yu Teng, Jianzhao Zhou, Bun’ei Sato, Yu-Juan Liu, Shaolan Bi, Takuya Takarada, Masayuki Kuzuhara, Marc Hon, Liang Wang, Masashi Omiya, Hiroki Harakawa, Fei Zhao, Gang Zhao, Eiji Kambe, Hideyuki Izumiura, Hiroyasu Ando, Kunio Noguchi, Wei Wang, Meng Zhai, Nan Song, Chengqun Yang, Tanda Li, Timothy D. Brandt, Michitoshi Yoshida, Yoichi Itoh, Eiichiro Kokubo
Publikováno v: The Astronomical Journal, Vol 167, Iss 2, p 59 (2024)
We present the discoveries of two giant plants orbiting the red-giant-branch star HD 112570 and the red-clump star HD 154391, based on the radial-velocity (RV) measurements from the Xinglong station and Okayama Astrophysical Observatory. Spectroscopi
Externí odkaz: https://doaj.org/article/2fddf3752d464a048cb25d515ceb9460
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2
Akademický článek
What Are the Radial Distributions of Density, Outflow Rates, and Cloud Structures in the M82 Wind?
Autor: Xinfeng Xu, Timothy Heckman, Michitoshi Yoshida, Alaina Henry, Youichi Ohyama
Publikováno v: The Astrophysical Journal, Vol 956, Iss 2, p 142 (2023)
Galactic winds play essential roles in the evolution of galaxies through the feedback they provide. Despite intensive studies of winds, the radial distributions of their properties and feedback are rarely observable. Here we present such measurements
Externí odkaz: https://doaj.org/article/fd31234128404c37bcea3f9c1828d5db
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3
Akademický článek
Follow-up Survey for the Binary Black Hole Merger GW200224_222234 Using Subaru/HSC and GTC/OSIRIS
Autor: Takayuki Ohgami, Josefa Becerra González, Nozomu Tominaga, Tomoki Morokuma, Yousuke Utsumi, Yuu Niino, Masaomi Tanaka, Smaranika Banerjee, Frédérick Poidevin, Jose Antonio Acosta-Pulido, Ismael Pérez-Fournon, Teo Muñoz-Darias, Hiroshi Akitaya, Kenshi Yanagisawa, Mahito Sasada, Michitoshi Yoshida, Mirko Simunovic, Ryou Ohsawa, Ichi Tanaka, Tsuyoshi Terai, Yuhei Takagi, The J-GEM collaboration
Publikováno v: The Astrophysical Journal, Vol 947, Iss 1, p 9 (2023)
The LIGO/Virgo detected a gravitational wave (GW) event, named GW200224_222234 (also known as S200224ca) and classified as a binary-black hole coalescence, on 2020 February 24. Given its relatively small localization skymap (71 deg ^2 for a 90% credi
Externí odkaz: https://doaj.org/article/38e74dba211543e5be6a0ac62db8e761
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4
A Close-in Planet Orbiting Giant Star HD 167768
Autor: Huan-Yu Teng, Bun’ei Sato, Masanobu Kunitomo, Takuya Takarada, Masashi Omiya, Hiroki Harakawa, Guang-Yao Xiao, Yu-Juan Liu, Hideyuki Izumiura, Eiji Kambe, Michitoshi Yoshida, Yoichi Itoh, Hiroyasu Ando, Eiichiro Kokubo, Shigeru Ida
We report the detection of a giant planet orbiting a G-type giant star HD 167768 from radial velocity measurements using HIgh Dispersion Echelle Spectrograph (HIDES) at Okayama Astrophysical Observatory (OAO). HD 167768 has a mass of $1.08_{-0.12}^{+
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6c22ba77cb360bddd0975baab6a83bbd
http://arxiv.org/abs/2211.06576
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5
Kottamia Faint Imaging Spectro-Polarimeter (KFISP): opto-mechanical design, software control and performance analysis
Autor: Ali Takey, Gamal B. Ali, Y. H. M. Hendy, Farag I. Y. Elnagahy, H. A. Ismail, G. M. Hamed, Yosry A. Azzam, Michitoshi Yoshida, A. Essam, Peter Mack, S. M. Saad, A. Shokry, Nasser M. Ahmed, Hiroshi Akitaya, I. Zead, Koji S. Kawabata
Publikováno v: Experimental Astronomy
In this paper we describe the Kottamia Faint Imaging Spectro-Polarimeter (KFISP) that has been recently developed and designed to be mounted at the Cassegrain focus of the 1.88 m telescope at Kottamia Astronomical Observatory (KAO), Egypt. The optica
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::12b27b7d4c8d55588fa657e447766fab
https://doi.org/10.1007/s10686-021-09802-z
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6
A Trio of Giant Planets Orbiting Evolved Star HD 184010
Autor: Huan-Yu Teng, Bun’ei Sato, Takuya Takarada, Masashi Omiya, Hiroki Harakawa, Makiko Nagasawa, Ryo Hasegawa, Hideyuki Izumiura, Eiji Kambe, Michitoshi Yoshida, Yoichi Itoh, Hiroyasu Ando, Eiichiro Kokubo, Shigeru Ida
We report the discovery of a triple-giant-planet system around an evolved star HD 184010 (HR 7421, HIP 96016). This discovery is based on observations from Okayama Planet Search Program, a precise radial velocity survey, undertaken at Okayama Astroph
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f5774ec22712312f565c5a44c0ae27dc
http://arxiv.org/abs/2209.09426
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8
Prime Focus Spectrograph (PFS) for the Subaru Telescope: its start of the last development phase
Autor: Naoyuki Tamura, Yuki Moritani, Kiyoto Yabe, Yuki Ishizuka, Yukiko Kamata, Ali Allaoui, Akira Arai, Stéphane Arnouts, Robert H. Barkhouser, Rudy Barette, Patrick Blanchard, Eddie Bergeron, Neven Caplar, Pierre-Yves Chabaud, Yin-Chang Chang, Hsin-Yo Chen, Chueh-Yi Chou, You-Hua Chu, Judith G. Cohen, Ricardo L. da Costa, Thibaut Crauchet, Rodrigo P. de Almeida, Antonio Cesar . de Oliveira, Ligia S. de Oliveira, Kjetil Dohlen, Leandro H. dos Santos, Richard S. Ellis, Maximilian Fabricius, Décio Ferreira, Hisanori Furusawa, Jahmour J. Givans, Javier Garciá-Carpio, Mirek Golebiowski, Aidan C. Gray, James E. Gunn, Satoshi Hamano, Randolph P. Hammond, Albert Harding, Kota Hayashi, Wanqiu He, Timothy M. Heckman, Stephen C. Hope, Shu-Fu Hsu, Yen-Shan Hu, Pin Jie Huang, Miho N. Ishigaki, Eric Jeschke, Yipeng Jing, Erin Kado-Fong, Jennifer L. Karr, Satoshi Kawanomoto, Masahiko Kimura, Michitaro Koike, Eiichiro Komatsu, Shintaro Koshida, Vincent Le Brun, Arnaud Le Fur, David Le Mignant, Romain Lhoussaine, Yen-Ting Lin, Hung-Hsu Ling, Craig P. Loomis, Robert . Lupton, Fabrice Madec, Danilo Marchesini, Edouard Marguerite, Lucas S. Marrara, Dmitry Medvedev, Sogo Mineo, Satoshi Miyazaki, Takahiro Morishima, Kazumi Murata, Hitoshi Murayama, Graham J. Murray, Hirofumi Okita, Masato Onodera, Joshua P. Peebles, Paul Price, Tae-Soo Pyo, Lucio Ramos, Daniel J. Reiley, Martin Reinecke, Mitsuko K. Roberts, Josimar A. Rosa, Julien . Rousselle, Mira Sarkis, Michael D. Seiffert, Kiaina Schubert, Hassan Siddiqui, Stephen A. Smee, Laerte Sodré, Michael A. Strauss, Christian Surace, Manuchehr Taghizadeh Popp, Philip J. Tait, Masahiro Takada, Yuhei Takagi, Masayuki Tanaka, Yoko Tanaka, Aniruddha R. Thakar, Didier Vibert, Shiang-Yu Wang, Chih-Yi Wen, Suzanne Werner, Matthew Wung, Gerald Lemson, Arik Mitschang, Naoki Yasuda, Hiroshige Yoshida, Chi-Hung Yan, Michitoshi Yoshida, Takuji Yamashita
Publikováno v: Proceedings of the SPIE
Proceedings of the SPIE, 0000, à renseigner, Unknown Region. ⟨10.1117/12.2628152⟩
International audience; PFS (Prime Focus Spectrograph), a next generation facility instrument on the Subaru telescope, is now being tested on the telescope. The instrument is equipped with very wide (1.3 degrees in diameter) field of view on the Suba
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::71f789bf57424f0c588d8be19d06dbf6
https://doi.org/10.1117/12.2628152
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