T
Toshihiro Omodaka
Researcher at Kagoshima University
Publications - 151
Citations - 4330
Toshihiro Omodaka is an academic researcher from Kagoshima University. The author has contributed to research in topics: Maser & Astrometry. The author has an hindex of 31, co-authored 149 publications receiving 4151 citations.
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Journal ArticleDOI
Astrometry of H2O Masers in Nearby Star-Forming Regions with VERA II SVS 13 in NGC 1333
Tomoya Hirota,Takeshi Bushimata,Yoon Kyung Choi,Mareki Honma,Hiroshi Imai,Kenzaburo Iwadate,Takaaki Jike,Osamu Kameya,Ryuichi Kamohara,Yukitoshi Kan-ya,Noriyuki Kawaguchi,Masachika Kijima,Hideyuki Kobayashi,Seisuke Kuji,Tomoharu Kurayama,Seiji Manabe,Takeshi Miyaji,Takumi Nagayama,Akiharu Nakagawa,Chung Sik Oh,Toshihiro Omodaka,Tomoaki Oyama,Satoshi Sakai,Tetsuo Sasao,Tetsuo Sasao,Katsuhisa Sato,Katsunori M. Shibata,Yoshiaki Tamura,Kazuyoshi Yamashita +28 more
TL;DR: In this article, the authors measured the annual parallax of the maser features in SVS 13 of 4.25 ˙ 0.32 mas, corresponding to a distance of 235 ˘ 18 pc from the Sun.
Journal ArticleDOI
Astrometry of Water Maser Sources in Nearby Molecular Clouds with VERA - II. SVS 13 in NGC 1333
Tomoya Hirota,Takeshi Bushimata,Yoon Kyung Choi,Mareki Honma,Hiroshi Imai,Kenzaburo Iwadate,Takaaki Jike,Osamu Kameya,Ryuichi Kamohara,Yukitoshi Kan-ya,Noriyuki Kawaguchi,Masachika Kijima,Hideyuki Kobayashi,Seisuke Kuji,Tomoharu Kurayama,Seiji Manabe,Takeshi Miyaji,Takumi Nagayama,Akiharu Nakagawa,Chung Sik Oh,Toshihiro Omodaka,Tomoaki Oyama,Satoshi Sakai,Tetsuo Sasao,Katsuhisa Sato,Katsunori M. Shibata,Yoshiaki Tamura,Kazuyoshi Yamashita +27 more
TL;DR: In this article, the authors reported the results of multi-epoch VLBI observations with VERA (VLBI Exploration of Radio Astrometry) of the 22 GHz H2O masers associated with the young stellar object SVS 13 in the NGC 1333 region.
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SiO Maser Observations toward Orion-KL with VERA
Mi Kyoung Kim,Tomoya Hirota,Mareki Honma,Hideyuki Kobayashi,Takeshi Bushimata,Yoon Kyung Choi,Hiroshi Imai,Kenzaburo Iwadate,Takaaki Jike,Seiji Kameno,Osamu Kameya,Ryuichi Kamohara,Yukitoshi Kan-ya,Noriyuki Kawaguchi,Seisuke Kuji,Tomoharu Kurayama,Seiji Manabe,Makoto Matsui,Naoko Matsumoto,Takeshi Miyaji,Takumi Nagayama,Akiharu Nakagawa,Chung Sik Oh,Toshihiro Omodaka,Tomoaki Oyama,Satoshi Sakai,Tetsuo Sasao,Katsuhisa Sato,Mayumi Sato,Katsunori M. Shibata,Yoshiaki Tamura,Kazuyoshi Yamashita +31 more
TL;DR: In this article, the authors derived the trigonometric parallax of Orion-KL to be 2.39˙0.03mas, corresponding to a distance of 418˙6pc.
Journal ArticleDOI
Fundamental Parameters of the Milky Way Galaxy Based on VLBI Astrometry
Mareki Honma,Takumi Nagayama,Kazuma Ando,Takeshi Bushimata,Y. K. Choi,Toshihiro Handa,Tomoya Hirota,Hiroshi Imai,Takaaki Jike,Mi Kyoung Kim,Osamu Kameya,Noriyuki Kawaguchi,Hideyuki Kobayashi,Hideyuki Kobayashi,Tomoharu Kurayama,Tomoharu Kurayama,Seisuke Kuji,Naoko Matsumoto,Seiji Manabe,Takeshi Miyaji,Kazuhito Motogi,Akiharu Nakagawa,Hiroyuki Nakanishi,Kotaro Niinuma,Chung Sik Oh,Toshihiro Omodaka,Tomoaki Oyama,Nobuyuki Sakai,Katsuhisa Sato,Mayumi Sato,Katsunori M. Shibata,Satoshi Shiozaki,Kazuyoshi Sunada,Yoshiaki Tamura,Yuji Ueno,Aya Yamauchi +35 more
TL;DR: In this article, the fundamental parameters of the Galaxy were determined based on VLBI astrometry of 52 Galactic maser sources obtained with VERA, VLBA, and EVN.
Journal ArticleDOI
EARLY PHASE OBSERVATIONS OF EXTREMELY LUMINOUS TYPE Ia SUPERNOVA 2009dc
Masayuki Yamanaka,Koji S. Kawabata,Kenzo Kinugasa,Masaomi Tanaka,Akira Imada,Keiichi Maeda,Ken'ichi Nomoto,Akira Arai,Shingo Chiyonobu,Yasushi Fukazawa,Osamu Hashimoto,Satoshi Honda,Y. Ikejiri,Ryosuke Itoh,Yukiko Kamata,Nobuyuki Kawai,T. Komatsu,Kohki Konishi,Daisuke Kuroda,Hisashi Miyamoto,Satoshi Miyazaki,Osamu Nagae,Hidehiko Nakaya,Takashi Ohsugi,Toshihiro Omodaka,Nobuyuki Sakai,Mahito Sasada,Mariko Suzuki,Hikaru Taguchi,Hidenori Takahashi,Hiroyuki Tanaka,Makoto Uemura,Takuya Yamashita,Kenshi Yanagisawa,Michitoshi Yoshida +34 more
TL;DR: In this article, early phase observations in optical and near-infrared wavelengths for the extremely luminous Type Ia supernova (SN Ia) 2009dc were presented, showing that SN 2009dc belongs to the most luminous class of SNe Ia, like SNe 2003fg and 2006gz.