T
Tomonori Usuda
Researcher at National Institutes of Natural Sciences, Japan
Publications - 56
Citations - 2197
Tomonori Usuda is an academic researcher from National Institutes of Natural Sciences, Japan. The author has contributed to research in topics: Exoplanet & Brown dwarf. The author has an hindex of 23, co-authored 56 publications receiving 2092 citations. Previous affiliations of Tomonori Usuda include University of Tokyo.
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Journal ArticleDOI
Direct imaging of a cold jovian exoplanet in orbit around the sun-like star gj 504
Masayuki Kuzuhara,Masayuki Kuzuhara,Masayuki Kuzuhara,Motohide Tamura,Motohide Tamura,Motohide Tamura,Tomoyuki Kudo,Markus Janson,Ryo Kandori,Timothy D. Brandt,Christian Thalmann,David S. Spiegel,Beth Biller,Joseph C. Carson,Yasunori Hori,Ryuji Suzuki,Adam Burrows,Thomas Henning,Edwin L. Turner,Edwin L. Turner,Michael W. McElwain,Amaya Moro-Martin,Amaya Moro-Martin,Takuya Suenaga,Takuya Suenaga,Yasuhiro H. Takahashi,Yasuhiro H. Takahashi,Jungmi Kwon,Jungmi Kwon,Philip W. Lucas,Lyu Abe,Wolfgang Brandner,Sebastian Egner,Markus Feldt,H. Fujiwara,Miwa Goto,Carol A. Grady,Olivier Guyon,Jun Hashimoto,Yutaka Hayano,Masahiko Hayashi,Saeko S. Hayashi,Klaus W. Hodapp,Miki Ishii,Masanori Iye,Gillian R. Knapp,Taro Matsuo,Satoshi Mayama,Shoken Miyama,Jun-Ichi Morino,Jun Nishikawa,Jun Nishikawa,Tetsuro Nishimura,Takayuki Kotani,Nobuhiko Kusakabe,Tae-Soo Pyo,Eugene Serabyn,Hiroshi Suto,Michihiro Takami,Naruhisa Takato,Hiroshi Terada,D. Tomono,Makoto Watanabe,John P. Wisniewski,Toru Yamada,Hideki Takami,Tomonori Usuda +66 more
TL;DR: In this paper, the authors reported the direct-imaging discovery of a Jovian exoplanet around the Sun-like star GJ 504, detected as part of the SEEDS survey.
Journal ArticleDOI
Direct Imaging of Fine Structures in Giant Planet Forming Regions of the Protoplanetary Disk around AB Aurigae
Jun Hashimoto,Motohide Tamura,Takayuki Muto,Tomoyuki Kudo,Misato Fukagawa,T. Fukue,Miwa Goto,Carol A. Grady,Thomas Henning,Klaus W. Hodapp,Mitsuhiko Honda,Shu-ichiro Inutsuka,Eiichiro Kokubo,Gillian R. Knapp,Michael W. McElwain,Munetake Momose,Nagayoshi Ohashi,Yoshiko K. Okamoto,Michihiro Takami,Edwin L. Turner,Edwin L. Turner,John P. Wisniewski,Markus Janson,Lyu Abe,Wolfgang Brandner,Joseph C. Carson,Joseph C. Carson,Sebastian Egner,Markus Feldt,Taras Golota,Olivier Guyon,Yutaka Hayano,Masahiko Hayashi,Saeko S. Hayashi,Miki Ishii,Ryo Kandori,Nobuhiko Kusakabe,Taro Matsuo,Satoshi Mayama,Shoken Miyama,Jun-Ichi Morino,Amaya Moro-Martin,Amaya Moro-Martin,Tetsuro Nishimura,Tae-Soo Pyo,Hiroshi Suto,Ryuji Suzuki,Naruhisa Takato,Hiroshi Terada,Christian Thalmann,D. Tomono,Makoto Watanabe,Toru Yamada,Hideki Takami,Tomonori Usuda +54 more
TL;DR: In this article, high-resolution 1.6 μm polarized intensity (PI) images of the circumstellar disk around the Herbig Ae star AB Aur at a radial distance of 22 AU (015) up to 554 AU (385) were obtained by the high-contrast instrument HiCIAO with the dual-beam polarimetry.
Journal ArticleDOI
A statistical analysis of seeds and other high-contrast exoplanet surveys: Massive planets or low-mass brown dwarfs?
Timothy D. Brandt,Michael W. McElwain,Edwin L. Turner,Edwin L. Turner,Kyle Mede,David S. Spiegel,Masayuki Kuzuhara,Masayuki Kuzuhara,Masayuki Kuzuhara,Joshua E. Schlieder,John P. Wisniewski,Lyu Abe,Beth Biller,Wolfgang Brandner,Joseph C. Carson,Thayne Currie,Sebastian Egner,Markus Feldt,Taras Golota,Miwa Goto,Carol A. Grady,Olivier Guyon,Jun Hashimoto,Yutaka Hayano,Masahiko Hayashi,Saeko S. Hayashi,Thomas Henning,Klaus W. Hodapp,Shu-ichiro Inutsuka,Miki Ishii,Masanori Iye,Markus Janson,Ryo Kandori,Gillian R. Knapp,Tomoyuki Kudo,Nobuhiko Kusakabe,Jungmi Kwon,Jungmi Kwon,Taro Matsuo,Shoken Miyama,Jun-Ichi Morino,Amaya Moro-Martin,Tetsuro Nishimura,Tae-Soo Pyo,Eugene Serabyn,Hiroshi Suto,Ryuji Suzuki,Michihiro Takami,Naruhisa Takato,Hiroshi Terada,Christian Thalmann,D. Tomono,Makoto Watanabe,Toru Yamada,Hideki Takami,Tomonori Usuda,Motohide Tamura,Motohide Tamura +57 more
TL;DR: In this paper, a uniform, Bayesian analysis of all stellar ages using both membership in a kinematic moving group and activity/rotation age indicators is conducted. But the authors do not consider the low-mass tail of the brown dwarfs.
Journal ArticleDOI
The moving group targets of the seeds high-contrast imaging survey of exoplanets and disks: results and observations from the first three years
Timothy D. Brandt,Masayuki Kuzuhara,Michael W. McElwain,Joshua E. Schlieder,John P. Wisniewski,Edwin L. Turner,Edwin L. Turner,Joseph C. Carson,Joseph C. Carson,Taro Matsuo,Beth Biller,Mickael Bonnefoy,Courtney D. Dressing,Markus Janson,Gillian R. Knapp,Amaya Moro-Martin,Christian Thalmann,Tomoyuki Kudo,Nobuhiko Kusakabe,Jun Hashimoto,Jun Hashimoto,Lyu Abe,Wolfgang Brandner,Thayne Currie,Sebastian Egner,Markus Feldt,Taras Golota,Miwa Goto,Carol A. Grady,Olivier Guyon,Yutaka Hayano,Masahiko Hayashi,Saeko S. Hayashi,Thomas Henning,Klaus W. Hodapp,Miki Ishii,Masanori Iye,Ryo Kandori,Jungmi Kwon,Jungmi Kwon,Kyle Mede,Shoken Miyama,Jun-Ichi Morino,Tetsuro Nishimura,Tae-Soo Pyo,Eugene Serabyn,Takuya Suenaga,Hiroshi Suto,Ryuji Suzuki,Michihiro Takami,Yasuhiro H. Takahashi,Naruhisa Takato,Hiroshi Terada,D. Tomono,Makoto Watanabe,Toru Yamada,Hideki Takami,Tomonori Usuda,Motohide Tamura +58 more
TL;DR: The first three years of observations of moving group (MG) targets in the SEEDS high-contrast imaging survey of exoplanets and disks using the Subaru telescope were presented in this paper.
Journal ArticleDOI
Mapping H-band scattered light emission in the mysterious SR21 transitional disk
Katherine B. Follette,Motohide Tamura,Jun Hashimoto,Barbara A. Whitney,Carol A. Grady,Laird M. Close,Sean M. Andrews,Jungmi Kwon,John P. Wisniewski,Timothy D. Brandt,Satoshi Mayama,Ryo Kandori,Ruobing Dong,Lyu Abe,Wolfgang Brandner,Joseph C. Carson,Thayne Currie,Sebastian Egner,Markus Feldt,Miwa Goto,Olivier Guyon,Yutaka Hayano,Masahiko Hayashi,Saeko S. Hayashi,Thomas Henning,Klaus W. Hodapp,Miki Ishii,Masanori Iye,Markus Janson,Gillian R. Knapp,Tomoyuki Kudo,Nobuhiko Kusakabe,Masayuki Kuzuhara,Michael W. McElwain,Taro Matsuo,Shoken Miyama,Jun-Ichi Morino,Amaya Moro-Martin,Tetsuo Nishimura,Tae-Soo Pyo,Eugene Serabyn,Hiroshi Suto,Ryuji Suzuki,Michihiro Takami,Naruhisa Takato,Hiroshi Terada,Christian Thalmann,Daigo Tomono,Edwin L. Turner,Edwin L. Turner,Makoto Watanabe,Toru Yamada,Hideki Takami,Tomonori Usuda +53 more
TL;DR: In this article, the first near infrared (NIR) spatially resolved images of the circumstellar transitional disk around SR21 were obtained with the Subaru HiCIAO camera, adaptive optics, and the polarized differential imaging technique.