Researcher Database

SORAI Kazuo
Faculty of Science Physics Quantum Physics
Associate Professor

Researcher Profile and Settings

Affiliation

  • Faculty of Science Physics Quantum Physics

Job Title

    Associate Professor

Research Interests

  • Galactic Astronomy   Interstellar Physics   Radio Astronomy   

Research Areas

  • Astronomy / Astronomy

Academic & Professional Experience

  • 2017/04 - Today    University of TsukubaFaculty of Pure and Applied SciencesAssociate Professor (cross appointment)
  • 2012/04 - Today    Hokkaido UniversityFaculty of ScienceAssociate Professor
  • 2007/04 - 2012/03    Hokkaido UniversityFaculty of ScienceAssistant Professor
  • 2006/04 - 2007/03    Hokkaido UniversityFaculty School of ScienceResearch Associate
  • 2002/05 - 2006/03    Hokkaido UniversityGraduate School of ScienceResearch Associate
  • 2002    - Research Associate, Graduate School of
  • Science, Hokkaido University

Association Memberships

  • International Astronomical Union   the Astronomical Society of Japan   

Research Activities

Published Papers

  • The Dust-Selected Molecular Clouds in the Northeast Region of the Small Magellanic Cloud
    Takekoshi, T., Minamidani, T., Komugi, S., Kohno, K., Tosaki, T., Sorai, K., Muller, E., Mizuno, N., Kawamura, A., Onishi, T., Fukui, Y., Bot, C., Rubio, M., Ezawa, H., Oshima, T., Austermann, J. E., Matsuo, H., Aretxaga, I., Hughes, D. H., Kawabe, R., WILSON, G. W., Yun, M. S.
    The Astrophysical Journal 2018/09 [Refereed][Not invited]
     Research paper (scientific journal)
  • VERA monitoring of the radio jet 3C 84 during 2007--2013: in the period of non-linear motion
    Hiura, K., Nagai, H., Kino, M., Niinuma, K., Sorai, K., Chida, H., Akiyama, K., D’Ammando, F., Giovannini, G., Giroletti, M., Hada, K., Honma, M., Koyama, S., Orienti, M., Orosz, G., Sawada-Satoh, S.
    Publications of the Astronomical Society of Japan 2018/07 [Refereed][Not invited]
     Research paper (scientific journal)
  • Diverse nuclear star-forming activities in the heart of NGC 253 resolved with ten-pc scale ALMA images
    Ando, R., Nakanishi, K., Kohno, K., Izumi, T., Martin, S., Harada, N., Takano, S., Kuno, N., Nakai, N., Sugai, H., Sorai, K., Tosaki, T., Matsubayashi, K., Nakajima, T., Nishimura, Y., Tamura, Y.
    The Astrophysical Journal 849 (2) 81:1 - 81:11 2017/11 [Refereed][Not invited]
     Research paper (scientific journal)
  • A Face-on Accretion System in High-mass Star Formation: Possible Dusty Infall Streams within 100 AU
    Motogi, K., Hirota, T., Sorai, K., Yonekura, Y., Sugiyama, K., Honma, M., Niinuma, K., Hachisuka, K., Fujisawa, K., Walsh, A. J.
    The Astrophysical Journal, 849 (1) 23:1 - 23:13 2017/11 [Refereed][Not invited]
     Research paper (scientific journal)
  • OISTER Optical and Near-Infrared Monitoring Observations of a Peculiar Radio-Loud Active Galactic Nucleus SDSS J110006.07+442144.3
    Morokuma, T., Tanaka, M., Tanaka, Y. T., Itoh, R., Tominaga, N., Gandhi, P., Pian, E., Mazzali, P., Ohta, K., Matsumoto, E., Shibata, T., Akimoto, H., Akitaya, H., Ali, G. B., Aoki, T., Doi, M., Ebisuda, N., Essam, A., Fujisawa, K., Fukushima, H., Goda, S., Gouda, Y., Hanayama, H., Hashiba, Y., Hashimoto, O., Hayashida, K., Hiratsuka, Y., Honda, S., Imai, M., Inoue, K., Ishibashi, M., Iwata, I., Izumiura, H., Kanda, Y., Kawabata, M., Kawaguchi, K., Kawai, N., Kokubo, M., Kuroda, D., Maehara, H., Mito, H., Mitsuda, K., Miyagawa, R., Miyaji, T., Miyamoto, Y., Morihana, K., Moritani, Y., Morokuma-Matsui, K., Murakami, K., Murata, K. L., Nagayama, T., Nakamura, K., Nakaoka, T., Niinuma, K., Nishimori, T., Nogami, D., Oasa, Y., Oda, T., Ohshima, T., Saito, Y., Sakata, S., Sako, S., Sarugaku, Y., Sawada-Satoh, S., Seino, G., Sorai, K., Soyano, T., Taddia, F., Takahashi, J., Takagi, Y., Takaki, K., Takata, K., Tarusawa, K., Uemura, M., Ui, T., Urago, R., Ushioda, K., Watanabe, J., Watanabe, M., Yamashita, S., Yanagisawa, K., Yonekura, Y., Yoshida, M.
    Publications of the Astronomical Society of Japan 69 (5) 82:1 - 82:20 2017/10 [Refereed][Not invited]
     Research paper (scientific journal)
  • CO multi-line imaging of nearby galaxies (COMING) II: Transitions between atomic and molecular gas, diffuse and dense gas, gas and stars in the dwarf galaxy NGC 2976
    Hatakeyama, T., Kuno, N., Sorai, K., Kaneko, H., Miyamoto, Y., Muraoka, K., Takeda, M., Yanagitani, K., Kishida, N., Umei, M., Tanaka, T., Tomiyasu, Y., Nakanishi, H., Saita, C., Ueno, S., Salak, D., Matsumoto, N., Morokuma, K., Pan, H.-A., Nakai, N.
    Publications of the Astronomical Society of Japan 69 (4) 67:1 - 67:14 2017/08 [Refereed][Not invited]
     Research paper (scientific journal)
  • The 1.1 mm Continuum Survey of the Small Magellanic Cloud: Physical Properties and Evolution of the Dust-selected Clouds
    Takekoshi, T., Minamidani, T., Komugi, S., Kohno, K., Tosaki, T., Sorai, K., Muller, E., Mizuno, N., Kawamura, A., Onishi, T., Fukui, Y., Ezawa, H., Oshima, T., Scott, K.S., Austermann, J.E., Matsuo, H., Aretxaga, I., Hughes, D.H., Kawabe, R., Wilson, G.W., Yun, M.S.
    The Astrophysical Journal 835 (1) 55:1 - 55:17 2017/01 [Refereed][Not invited]
     Research paper (scientific journal)
  • Muraoka, K., Sorai, K., Kuno, N., Nakai, N., Nakanishi, H., Takeda, M., Yanagitani, K., Kaneko, H., Miyamoto, Y., Kishida, N., Hatakeyama, T., Umei, M., Tanaka, T., Tomiyasu, Y., Saita, C., Ueno, S., Matsumoto, N., Salak, D., Morokuma-Matsui, K.
    Publications of the Astronomical Society of Japan 68 (5) 89:1 - 89:14 2016/10 [Refereed][Not invited]
     Research paper (scientific journal)
  • Yonekura, Y., Saito, Y., Sugiyama, K., Soon, K. L., Momose, M., Yokosawa, M., Ogawa, H., Kimura, K., Abe, Y., Nishimura, A., Hasegawa, Y., Fujisawa, K., Tomoaki, O., Kono, Y., Miyamoto, Y., Sawada-Satoh, S., Kobayashi, H., Kawaguchi, N., Honma, M., Shibata, K., Sato, K., Ueno, Y., Jike, T., Tamura, Y., Hirota, T., Miyazaki, A., Niinuma, K., Sorai, K., Takaba, H., Hachisuka, K., Kondo, T., Sekido, M., Murata, Y., Nakai, N., Omodaka, T.
    Publications of the Astronomical Society of Japan 68 (5) 74:1 - 74:16 2016/10 [Refereed][Not invited]
     Research paper (scientific journal)
  • Sugiyama, K., Fujisawa, K., Hachisuka, K., Yonekura, Y.,; Motogi, K., Sawada-Satoh, S., Matsumoto, N., Hirano, D., Hayashi, K., Kobayashi, H., Kawaguchi, N., Shibata, K. M., Honma, M., Hirota, T., Murata, Y., Doi, A., Ogawa, H., Kimura, K., Niinuma, K., Chen, X., Xia, B., Li, B., Sorai, K., Momose, M., Saito, Y., Takaba, H., Omodaka, T., Kim, K.-T., Shen, Z.
    Publications of the Astronomical Society of Japan 68 (5) 72:1 - 72:18 2016/10 [Refereed][Not invited]
     Research paper (scientific journal)
  • Motogi, K., Sorai, K., Honma, M., Hirota, T., Hachisuka, K., Niinuma, K., Sugiyama, K., Yonekura, Y., Fujisawa, K.
    Publications of the Astronomical Society of Japan 68 (5) 69:1 - 69:17 2016/10 [Refereed][Not invited]
     Research paper (scientific journal)
  • Muraoka, K., Takeda, M., Yanagitani, K., Kaneko, H., Nakanishi, K., Kuno, N., Sorai, K., Tosaki, T., Kohno, K.
    Publications of the Astronomical Society of Japan 68 (2) 18:1 - 18:13 2016/04 [Refereed][Not invited]
     Research paper (scientific journal)
  • Watanabe, Y., Sakai, N., Sorai, K., Ueda, J., Yamamoto, S.
    The Astrophysical Journal 819 (2) 144:1 - 144:11 2016/03 [Refereed][Not invited]
     Research paper (scientific journal)
  • Pan, H.-A., Kuno, N., Sorai, K., Umei, M.
    Publications of the Astronomical Society of Japan 67 (6) 116:1 - 116:17 2015/12 [Refereed][Not invited]
     Research paper (scientific journal)
  • Pan, H.-A., Kuno, N., Koda, J., Hirota, A., Sorai, K., Kaneko, H.
    The Astrophysical Journal 815 (1) 59:1 - 59:14 2015/12 [Refereed][Not invited]
     Research paper (scientific journal)
  • Morokuma-Matsui, K., Baba, J., Sorai, K., Kuno, N.
    Publications of the Astronomical Society of Japan 67 (3) 36:1 - 36:13 2015/06 [Refereed][Not invited]
     Research paper (scientific journal)
  • Stacking Analysis of 12CO and 13CO Spectra of NGC3627: Existence of non-optically thick 12CO emission?
    Morokuma-Matsui, K., Sorai, K., Watanabe, Y., Kuno, N.
    Publications of the Astronomical Society of Japan 67 (1) 2:1 - 2:17 2015/02 [Refereed][Not invited]
     Research paper (scientific journal)
  • VLBI observations of bright AGN jets with KVN and VERA Array (KaVA): Evaluation of Imaging Capability
    Niinuma, K., Lee, S.-S., Kino, M., Sohn, B. W., Akiyama, K., Zhao, G.-Y., Sawada-Satoh, S., Trippe, S., Hada, K., Jung, T., Hagiwara, Y., Dodson, R., Koyama, S., Honma, M., Nagai, H., Chung, A., Doi, A., Fujisawa, K., Han, M.-H., Kim, J.-S., Lee, J., Lee, J. A., Miyazaki, A., Oyama, T., Sorai, K., Wajima, K., Bae, J., Byun, D.-Y., Cho, S.-H., Choi, Y. K., Chung, H., Chung, M.-H., Han, S.-T., Hirota, T., Hwang, J.-W., Je, D.-H., Jike, T., Jung, D.-K., Jung, J.-S., Kang, J.-H., Kang, J., Kang, Y.-W., Kan-ya, Y., Kanaguchi, M., Kawaguchi, N., Kim, B. G., Ryoung Kim, H., Kim, H.-G., Kim, J., Kim, J., Kim, K.-T., Kim, M., Kobayashi, H., Kono, Y., Kurayama, T., Lee, C., Lee, J.-W., Lee, S. H., Minh, Y. C., Matsumoto, N., Nakagawa, A., Oh, C. S., Oh, S.-J., Park, S.-Y., Roh, D.-G., Sasao, T., Shibata, K. M., Song, M.-G., Tamura, Y., Wi, S.-O., Yeom, J.-H., Yun, Y. J.
    Publications of the Astronomical Society of Japan 66 (6) 103:1 - 103:16 2014/12 [Refereed][Not invited]
     Research paper (scientific journal)
  • Spectral Line Survey toward Spiral Arm of M51 in the 3 mm and 2 mm Bands
    Watanabe, Y., Sakai, N., Sorai, K., Yamamoto, S.
    The Astrophysical Journal 788 (1) 4:1 - 4:20 2014/06 [Refereed][Not invited]
     Research paper (scientific journal)
  • Fujisawa, K., Sugiyama, K., Motogi, K., Hachisuka, K., Yonekura, Y., Sawada-Satoh, S., Matsumoto, N., Sorai, K., Momose, M., Saito, Y., Takaba, H., Ogawa, H., Kimura, K., Niinuma, K., Hirano, D., Omodaka, T., Kobayashi, H., Kawaguchi, N., Shibata, K. M., Honma, M., Hirota, T., Murata, Y., Doi, A., Mochizuki, N., Shen, Z., Chen, X., Xia, B., Li, B., Kim, K.-T.
    Publications of the Astronomical Society of Japan 66 (2) 31:1 - 31:29 2014/02 [Refereed][Not invited]
     Research paper (scientific journal)
  • Takekoshi, T., Tamura, Y., Minamidani, T., Kohno, K., Oogi, T., Sorai, K., Habe, A., Ezawa, H., Oshima, T., Scott, K. S., Austermann, J. E., Komugi, S., Tosaki, T., Mizuno, N., Muller, E., Kawamura, A., Onishi, T., Fukui, Y., Matsuo, H., Aretxaga, I., Hughes, D. H., Kawabe, R., Wilson, G. W., Yun, M. S.
    The Astrophysical Journal Letters 774 (2) L30:1 - L30:6 2013/09 [Refereed][Not invited]
     Research paper (scientific journal)
  • GENJI Programme: Gamma-ray Emitting Notable AGN Monitoring by Japanese VLBI
    Nagai, H., Kino, M., Niinuma, K., Akiyama, K., Hada, K., Koyama, S., Orienti, M., Hiura, K., Sawada-Satoh, S., Honma, M., Giovannini, G., Giroletti, M., Shibata, K., Sorai, K.
    Publications of the Astronomical Society of Japan 65 (2) 24:1 - 24:14 2013/04 [Refereed][Not invited]
     Research paper (scientific journal)
  • Nimori, M., Habe, A., Sorai, K., Watanabe, Y., Hirota, A., Namekata, D.
    Monthly Notices of the Royal Astronomical Society 429 (3) 2175 - 2182 2013/03 [Refereed][Not invited]
     Research paper (scientific journal)
  • Doi, A., Kohno, K., Nakanishi, K., Kameno, S., Inoue, M., Hada, K., Sorai, K.
    The Astrophysical Journal 765 (1) 63:1 - 63:11 2013/03 [Refereed][Not invited]
     Research paper (scientific journal)
  • Motogi, K., Sorai, K., Niinuma, K., Sugiyama, K., Honma, M., Fujisawa, K.
    Monthly Notices of the Royal Astronomical Society 428 (1) 349 - 354 2013/01 [Refereed][Not invited]
     Research paper (scientific journal)

MISC

  • VLBI Detections of Parsec-Scale Nonthermal Jets in Radio-Loud Broad Absorption Line Quasars
    Doi Akihiro, Kawaguchi Noriyuki, Kono Yusuke, Oyama Tomoaki, Fujisawa Kenta, Takaba Hiroshi, Sudou Hiroshi, Wakamatsu Ken-Ichi, Yamauchi Aya, Murata Yasuhiro, Mochizuki Nanako, Wajima Kiyoaki, Omodaka Toshihiro, Nagayama Takumi, Nakai Naomasa, Sorai Kazuo, Kawai Eiji, Sekido Mamoru, Koyama Yasuhiro, The VLBI Group At Geographical Survey Institute, Asano Shoichiro, Uose Hisao  Publications of the Astronomical Society of Japan  61-  (6)  1389  -1398  2009   [Not refereed] [Not invited]
  • Muraoka Kazuyuki, Kohno Kotaro, Tosaki Tomoka, Kuno Nario, Nakanishi Kouichiro, Sorai Kazuo, Sawada Tsuyoshi, Tanaka Kunihiko, Handa Toshihiro, Fukuhara Masayuki, Ezawa Hajime, Kawabe Ryohei  The Astrophysical Journal  706-  (2)  1213  -1225  2009   [Not refereed] [Not invited]
  • Determination of the Pattern Speed of Barred Spiral Galaxies
    Hirota, A.; Kuno, N.; Sato, N.; Nakanishi, H.; Tosaki, T.; Matsui, H.; Habe, A.; Sorai, K.  Publications of the Astronomical Society of Japan  61-  (3)  441  -450  2009   [Not refereed] [Not invited]
  • Nobeyama Millimeter Array Observations of the Nuclear Starburst of M 83: A GMA Scale Correlation between Dense Gas Fraction and Star Formation Efficiency
    Muraoka, K.; Kohno, K.; Tosaki, T.; Kuno, N.; Nakanishi, K.; Handa, T.; Sorai, K.; Ishizuki, S.; Okuda, T.  Publications of the Astronomical Society of Japan  61-  (2)  163  -176  2009   [Not refereed] [Not invited]
  • Large-scale NH3 Observations toward the Galactic Star Forming Regions I. W 51 Molecular Clouds Complex
    Kazuo Sorai, Asao Habe, Hiroyuki Nishitani, Keita Hosaka, Yoshimasa Watanabe, Shinichi Miwa, Yukie Ohishi, Kazuhito Motogi, Tetsuhiro Minamidani, Johta Awano, Sakurako Sumida, Yoshiaki Fukuya, Ryosuke Uchida, Noboru Kaneko, Masayuki Y. Fujimoto, Yasuhiro Koyama, Moritaka Kimura, and Naomasa Nakai  Publications of the Astronomical Society of Japan  60-  (6)  1285  -1296  2008   [Not refereed] [Not invited]
  • Stellar Abundances for Galactic Archeology (SAGA) Database - Compilation of the Characteristics of Known Extremely Metal-Poor Stars
    Takuma Suda, Yutaka Katsuta, Shimako Yamada, Tamon Suwa, Chikako Ishizuka, Yutaka Komiya, Kazuo Sorai, Masayuki Aikawa, and Masayuki Y. Fujimoto  Publications of the Astronomical Society of Japan  60-  (5)  1159  -1171  2008   [Not refereed] [Not invited]
  • H2O Maser Outflow from the Red Supergiant Star NML Cygni Observed with Japanese VLBI Network
    Takumi Nagayama, Koji Takeda, Toshihiro Omodaka, Hiroshi Imai, Seiji Kameno, Yoshiaki Sofue, Akihiro Doi, Kenta Fujisawa, Asao Habe, Mareki Honma, Noriyuki Kawaguchi, Eiji Kawai, Hideyuki Kobayashi, Yasuhiro Koyama, Yasuhiro Murata, Kazuo Sorai, Hiroshi Sudou, Hiroshi Takaba, Sayaka Tamura, and Ken-ichi Wakamatsu  Publications of the Astronomical Society of Japan  60-  (5)  1069  -1075  2008   [Not refereed] [Not invited]
  • K. Motogi, Y. Watanabe, K. Sorai, A. Habe, M. Honma, H. Imai, A. Yamauchi, H. Kobayashi, K. Fujisawa, T. Omodaka, H. Takaba, K. M. Shibata, T. Minamidani, K. Wakamatsu, H. Sudou, Y. Murata, E. Kawai, and Y. Koyama  Monthly Notices of the Royal Astronomical Society  390-  (2)  523  -534  2008   [Not refereed] [Not invited]
  • Central Spiral Structure of Molecular Gas in Maffei 2
    Kuno, Nario; Nakanishi, Kouichiro; Sorai, Kazuo; Shibatsuka, Toshihito  Publications of the Astronomical Society of Japan  60-  (3)  475  -485  2008   [Not refereed] [Not invited]
  • ASTE CO(3-2) Observations of the Southern Barred Spiral Galaxy NGC 986: a Large Gaseous Bar Filled with a Dense Molecular Medium
    Kohno, Kotaro; Tosaki, Tomoka; Miura, Rie; Muraoka, Kazuyuki; Sawada, Tsuyoshi; Nakanishi, Kouichiro; Kuno, Nario; Sakai, Takeshi; Sorai, Kazuo; Kamegai, Kazuhisa; Tanaka, Kunihiko; Okuda, Takeshi; Endo, Akira; Hatsukade, Bunyo; Sameshima, Masahiro; Ezawa, Hajime; Sakamoto, Seiichi; Kamazaki, Takeshi; Yamaguchi, Nobuyuki; Cortés, Juan; Tamura, Yoichi; Fukuhara, Masayuki; Iono, Daisuke; Kawabe, Ryohei  Publications of the Astronomical Society of Japan  60-  (3)  457  -464  2008   [Not refereed] [Not invited]
  • Japanese VLBI Network Observations of Radio-Loud Narrow-Line Seyfert 1 Galaxies
    Doi, Akihiro; Fujisawa, Kenta; Inoue, Makoto; Wajima, Kiyoaki; Nagai, Hiroshi; Harada, Keiichiro; Suematsu, Kousuke; Habe, Asao; Honma, Mareki; Kawaguchi, Noriyuki; Kawai, Eiji; Kobayashi, Hideyuki; Koyama, Yasuhiro; Kuboki, Hiromitsu; Murata, Yasuhiro; Omodaka, Toshihiro; Sorai, Kazuo; Sudou, Hiroshi; Takaba, Hiroshi; Takashima, Kazuhiro; Takeda, Koji; Tamura, Sayaka; Wakamatsu, Ken-Ichi  Publications of the Astronomical Society of Japan  59-  (4)  703  -709  2007   [Not refereed] [Not invited]
  • Nobeyama CO Atlas of Nearby Spiral Galaxies: Distribution of Molecular Gas in Barred and Nonbarred Spiral Galaxies
    Kuno, Nario; Sato, Naoko; Nakanishi, Hiroyuki; Hirota, Akihiko; Tosaki, Tomoka; Shioya, Yasuhiro; Sorai, Kazuo; Nakai, Naomasa; Nishiyama, Kota; Vila-Vilaró, Baltsar  Publications of the Astronomical Society of Japan  59-  (1)  117  -166  2007   [Not refereed] [Not invited]
  • ASTE CO (3-2) Observations of the Barred Spiral Galaxy M 83: I. Correlation between CO (3-2)/ CO (1-0) Ratios and Star Formation Efficiencies
    Muraoka, Kazuyuki; Kohno, Kotaro; Tosaki, Tomoka; Kuno, Nario; Nakanishi, Kouichiro; Sorai, Kazuo; Okuda, Takeshi; Sakamoto, Seiichi; Endo, Akira; Hatsukade, Bunyo; Kamegai, Kazuhisa; Tanaka, Kunihiko; Cortes, Juan; Ezawa, Hajime; Yamaguchi, Nobuyuki; Sakai, Takeshi; Kawabe, Ryohei  Publications of the Astronomical Society of Japan  59-  (1)  43  -54  2007   [Not refereed] [Not invited]
  • Nakanishi Hiroyuki, Kuno Nario, Sofue Yoshiaki, Sato Naoko, Nakai Naomasa, Shioya Yasuhiro, Tosaki Tomoka, Onodera Sachiko, Sorai Kazuo, Egusa Fumi, Hirota Akihiko  The Astrophysical Journal  651-  (2)  804  -810  2006   [Not refereed] [Not invited]
  • A Collimated Jet and an Infalling-Rotating Disk in G192.16-3.84 Traced by H2O Maser Emission
    Imai Hiroshi, Omodaka Toshihiro, Hirota Tomoya, Umemoto Tomofumi, Sorai Kazuo, Kondo Tetsuro  Publications of the Astronomical Society of Japan  58-  (5)  883  -892  2006   [Not refereed] [Not invited]
  • Water-Vapor Maser Survey for Active Galactic Nuclei: A Megamaser in NGC 6926
    Sato Naoko, Yamauchi Aya, Ishihara Yuko, Sorai Kazuo, Kuno Nario, Nakai Naomasa, Balasubramanyam Ramesh, Hall Peter  Publications of the Astronomical Society of Japan  57-  (4)  587  -594  2005   [Not refereed] [Not invited]
  • Dense Molecular Gas in Lenticular Galaxies
    Nario Kuno, Naomasa Nakai, Kazuo Sorai, Kohta Nishiyama  Publication of the Astronomical Society of Japan  54-  (4)  555  -560  2002   [Not refereed] [Not invited]
  • Radial Distributions of the HCN/CO Ratio in Nearby CO Bright Galaxies
    Kazuo Sorai, Naomasa Nakai, Nario Kuno, Kohta Nishiyama  Publications of the Astronomical Society of Japan  54-  (2)  179  -194  2002   [Not refereed] [Not invited]
  • A Large-scale CO Mapping of the Central Region of W 51
    Shi-ichiro Okumura, Ryosuke Miyawaki, Kazuo Sorai, Takuya Yamashita, Hasegawa  Publications of the Astronomical Society of Japan  53-  793  -798  2001   [Not refereed] [Not invited]
  • Tsuyoshi Sawada, Tetsuo Hasegawa, Toshihiro Handa, Jun-Ichi Morino, Tomoharu Oka, Roy Booth, Leonardo Bronfman, Masahiko Hayashi, Abraham L. Castellanos, Lars-Åke Nyman, Seiichi Sakamoto, Masumichi Seta, Peter Shaver, Kazuo Sorai, Kumiko S. Usuda  The Astrophysical Journal, Supplement Series  136-  189  -219  2001   [Not refereed] [Not invited]
  • Kazuo Sorai, Tetsuo Hasegawa, Roy S. Booth, Monica Rubio, Jun-Ichi Morino, Leonardo Bronfman, Toshihiro Handa, Masahiko Hayashi, Lars-Åke Nyman, Tomoharu Oka, Seiichi Sakamoto, Masumichi Seta, Kumi S. Usuda  The Astrophysical Journal  551-  (2)  794  -802  2001   [Not refereed] [Not invited]
  • Kazuo Sorai, Naomasa Nakai, Nario Kuno, Kohta Nishiyama, Tetsuo Hasegawa  Publications of the Astronomical Society of Japan  52-  785  -802  2000   [Not refereed] [Not invited]
  • Distribution and Kinematics of Molecular Gas in Barred Spiral Galaxies. Ⅰ. NGC3504
    Nario Kuno, Kohta Nishiyama, Naomasa Nakai, Kazuo Sorai, Baltasar Vila-Vilaró, Toshihiro Handa  Publications of the Astronomical Society of Japan  52-  775  -783  2000   [Not refereed] [Not invited]
  • Very Long Baseline Connected Interferometry via the STM-16 ATM Network
    Hitoshi Kiuchi, Yukio Takahashi, Akihiro Kaneko, Hisao Uose, Sotetsu Iwamura, Takashi Hosino, Noriyuki Kawaguchi, Hideyuki Kobayashi, Kenta Fujisawa, Jun Amagai, Junichi Nakajima, Tetsuro Kondo, Satoru Iguchi, Takeshi Miyaji, Kazuo Sorai, Kouichi Sebata, Taizoh Yoshino, Noriyuki Kurihara  IEICE Transactions Communications  E83-B-  238  -245  2000   [Not refereed] [Not invited]
  • A CO(J=2-1)line survey of the galactic center
    Tsuyoshi Sawada, Tetsuo Hasegawa, Toshihiro Handa, Kumiko S. Usuda, Jun-Ichi Morino, Roy Booth, Leonardo Bronfman, Abraham C. Luna, Masahiko Hayashi, Lars-Åke Nyman, Tomoharu Oka, Seiichi Sakamoto, Masumichi Seta, Peter Shaver, Kazuo Sorai  Advances in Space Research  23-  (5-6)  985  -989  1999   [Not refereed] [Not invited]
  • Masumichi Seta, Tetsuo Hasegawa, T.M. Dame, Seiichi Sakamoto, Tomoharu Oka, Toshihiro Handa, Masahiko Hayashi, Jun-Ichi Morino, Kazuo Sorai, Kumiko S. Usuda  The Astrophysical Journal  505-  (1)  286  -298  1998   [Not refereed] [Not invited]
  • Seiichi Sakamoto, Toshihiro Handa, Yoshiaki Sofue, Mareki Honma, Kazuo Sorai  The Astrophysical Journal  475-  134  -143  1997   [Not refereed] [Not invited]
  • Physical Conditions and Structure of Molecular Gas in the Galactic Center
    Tsuyoshi Sawada, Tetsuo Hasegawa, Toshihiro Handa, Jun-Ichi Morino, Kumiko S. Usuda, Kazuo Sorai, Tomoharu Oka, Masumichi Seta, Seiichi Sakamoto, Masahiko Hayashi, Roy Booth, Leonard Bronfman, Abraham L. Castellanos, Lars-Åke Nyman, Peter Shaver, R. J. Cohen  ASP Conference Proceedings 289, The Proceedings of the IAU 8th Asian-Pacific Regional Meeting, editted by S. Ikeuchi, J. Hearnshaw, and T. Hanawa, the Astronomical Society of Japan  207  -208  2003   [Not refereed] [Not invited]
  • Nobeyama CO Atlas of Nearby Spiral Galaxies
    Nario Kuno, Naomasa Nakai Kazuo Sorai, Naoko Sato, Aya Ymauchi, Tomoka Tosaki, Yoshiyuki Shioya, Baltasar Vila-Vilaró, Kohta Nishiyama, Yuko Ishihara, J. Cepa  ASP Conference Proceedings 249, The Central Kiloparsec of Starbursts and AGN: The La Palma Connection, editted by J. H. Knapen, J. E. Beckman, I. Shlosman, T. J. Mahoney  71  -72  2003   [Not refereed] [Not invited]
  • Dense Molecular Gas in Early-Type Galaxies
    Nario Kuno, Naomasa Nakai, Baltasar Vila-Vilaró, Kohta Nishiyama, Kazuo Sorai  ASP Conference Proceedings 249, The Central Kiloparsec of Starbursts and AGN: The La Palma Connection, editted by J. H. Knapen, J. E. Beckman, I. Shlosman, T. J. Mohoney  695  2001   [Not refereed] [Not invited]
  • HCN/CO Ratio in the Nuclear Regions and the Disks of Nearby Spiral Galaxies
    Kazuo Sorai, Naomasa Nakai, Nario Kuno, Kohta Nishiyama  ASP Conference Series 230, Galaxy Disks and Disk Galaxies, editted by J. G. Funes, S. J. and E. M. Corsini  385  -386  2001   [Not refereed] [Not invited]
  • Distribution and Kinematics of Molecular Gas in NGC 3504
    Nario Kuno, Kohta Nishiyama, Naomasa Nakai, Kazuo Sorai, Baltasar Vila-Vilaró, Toshihiro Handa  ASP Conference Series 230, Galaxy Disks and Disk Galaxies, editted by J. G. Funes, S. J. and E. M. Corisini  379  -380  2001   [Not refereed] [Not invited]
  • GALAXY-Real-time VLBI for Radio Astronomy Observations
    Kenta Fujikawa, Noriyuki Kawaguchi, Hideyuki Kobayashi, Satoru Iguchi, Takeshi Miyajim, Kazuo Sorai, Tetsuro Kondo, Yasuhiro Koyama, Junichi Nakajima, Mamoru Sekido, Hiro Osaki, Hiroshi Okudo, Hitoshi Kiuchi, Yukio Takahashi, Akihiro Kaneko, Hisashi Hirabayashi, Yasuhiro Murata, Hisao Uose, Sotetsu Iwamura, Takashi Hoshino  Journal of the Communication Research Laboratory  (46)  47  -58  2001   [Not refereed] [Not invited]
  • BEARS: SIS 25-Beam Array Reciever System for the NRO45-m Telescope
    Kazuyoshi Sunada, Chieko Yamaguchi, Naomasa Nakai, Kazuo Sorai, Sachiko K. Okumura, Nobuharu Ukita  Proceedings of SPIE's International Syposium on Astronomical Telescopes and Instrumentation 200, Radio Telescopes, edited by Harvey R. Butcher  4015-  237  -246  2000   [Not refereed] [Not invited]
  • Digital Spectrometers for the Nobeyama 45-m Telescope
    Kazuo Sorai, Kazuyoshi Sunada, Sachiko K. Okumura, Tetsuro Iwasa, Atshushi Tanaka, Kazuhito Natori, Hirofumi Onuki  Proceedings of SPIE's International Syposium on Astonomical Telescopes and Instrumentation 200, Radio Telescopes, edited by Harvey R. Butcher  4015-  86  -95  2000   [Not refereed] [Not invited]
  • Molecular Gas in the Galactic Center: Large-Scale Structure and Kinematics
    Tsuyoshi Sawada, Tetsuo Hasegawa, Toshihiro Handa, Jun-Ichi Morino, Kumiko S. Usuda, Kazuo Sorai, Tomoharu Oka, Masumichi Seta, Seiichi Sakamoto, Masahiko Hayashi, Roy Booth, Leonard Bronfman, Abraham C. Luna, Lars-Åke Nyman  Proceedings Of Star Formation 1999, editted by T. Nakamoto and Nobeyama Radio Observatory  104  -105  1999   [Not refereed] [Not invited]
  • A CO(J=2-1)line survey of the galactic center
    Tsuyoshi Sawada, Tetsuo Hasegawa, Toshihiro Handa, Kumiko S. Usuda, Jun-Ichi Morino, Roy Booth, Leonardo Bronfman, Abraham C. Luna, Masahiko Hayashi, Lars-Åke Nyman, Tomoharu Oka, Seiichi Sakamoto, Masumichi Seta, Peter Shaver, Kazuo Sorai  Advances in Space Research  (23)  985  -989  1999   [Not refereed] [Not invited]
  • The Tokyo-Nobeyama CO J=2-1 Galactic Plane Survey
    Seiichi Sakamoto, Tetsuo Hasegawa, Toshihiro Handa, Jun-Ichi Morino, Tomoharu Oka, Masumichi Seta, Kazuo Sorai, Kumiko S. Usuda, Masahiko Hayashi  ASP Conference Series 168, New Perspectives on the Interstellar Medium, editted by A. R. Taylor, T. L. Landecker, and G. Joncas  90  1999   [Not refereed] [Not invited]
  • Low Density Molecular Gas in the Galaxy
    Kumiko S. Usuda, Tetsuo Hasegawa, Toshihiro Handa, Jun-Ichi Morino, Tuyoshi Sawada, Seiichi Sakamoto, Tomoharu Oka, Masumichi Seta, Kazuo Sorai, Masahiko Hayashi, Roy Booth, Lars-Åke Nyman, Leonardo Bronfman, Jorge May, Abraham Luna, Peter Shaver, Glenn J. White  Proceedings of the 3rd Cologne-Zermatt Symposium, The Physics and Chemistry of the Interstellar Medium, edited by V. Ossenkopf, J. Stuzki, G. Winnewisser  96  1999   [Not refereed] [Not invited]
  • A 500-MHz Acousto-optical Spectrometer for the Nobeyama 45-m radio telescope
    Kazuo Sorai, Kohta Nishiyama, Tetsuo Hasegawa, Takeshi Miyaji, Nobuharu Ukita  Nobeyama Radio Observatory Technical Report  1  -10  1998   [Not refereed] [Not invited]
  • CO Mapping of Barred Spiral Galaxies
    Nario Kuno, Naomasa Nakai, Kohta Nishiyama, Kazuo Sorai, Toshihiro Handa, Toshiyuki Iga  IAU Symposium No.184, The Central Regions of the Galaxy and Galaxies  243  -244  1998   [Not refereed] [Not invited]
  • The CO 2-1/1-0 Ratio in the Disk and Center of the Milky Galaxy
    Tetsuo Hasegawa, Jun Ichi Morino, Toshihiro Handa, Kumiko Sato, Tomoharu Oka, Seiichi Sakamoto, Kazuo Sorai, Masahiko Hayashi, Masumichi Seta, Leonardo Bronfman, Roy Booth, Lars-Åke Nyman, Peter Shaver  IAU Symposium No.184, The Central Regions of the Galaxy and Galaxies  179  -180  1998   [Not refereed] [Not invited]
  • Molecular Gas in the Nuclear Region and the Bar of NGC 253
    Kazuo Sorai, Naomasa Nakai, Nario Kuno, Kohta Nishiyama  IAU Symposium No.184, The Central Regions of the Galaxy and Galaxies  141  -142  1998   [Not refereed] [Not invited]
  • 12CO(J=2-1)Emission in the Inner Galaxy
    Kazuo Sorai, Tetsuo Hasegawa, Toshihiro Handa, Seiichi Sakamoto, Tomoharu Oka, Masamichi Seta, Kumiko Sato, Jun Ichi Morino, Masahiko Hayashi, Hiroko Shinnaga  IAU Symposium No.170, CO:Twenty-five Years of Millimeter-wave Spectroscopy  463  1997   [Not refereed] [Not invited]
  • The CO 2-1/1-0 Ratio in the Southern Milky Way and the Large Magellanic Cloud
    Tetsuo Hasegawa, Jun Ichi Morino, Kazuo Sorai, Toshihiro Handa, Kumiko Sato, Tomoharu Oka, Masumichi Seta, Seiichi Sakamoto, Masahiko Hayashi, Roy Booth, Lars-Åke Nyman, Leonardo Bronfman, Monica Rubio, Peter Shaver  ASP Conference Series, Diffuese Infrared Radiation and the IRTS  124-  244  1997   [Not refereed] [Not invited]
  • A 12CO(J=2-1)Survey of the First Quadrant of the Galaxy
    Kazuo Sorai, Seiichi Sakamoto, Tetsuo hasegawa, Toshihiro Handa, Masahiko hayashi, Tomoharu Oka, Masumichi Seta, Kumiko Sato, Sato Hiroko Shinnagam, Jun Ichi Morino  Proceedings of Third East-Asian Meeting on Astronomy, Ground-Based Astronomu in Asia, edited by Norio Kaifu  115  -120  1996   [Not refereed] [Not invited]

Research Grants & Projects

  • Kinematics and Star Formation in the Galaxy
    Date (from‐to) : 2001 -2008
  • Molecular Gas and Star Formation in Barred Spiral Galaxies
    Cooperative Research
    Date (from‐to) : 2003 -2004

Educational Activities

Teaching Experience

  • Special Research of Cosmosciences 1
    開講年度 : 2017
    課程区分 : 修士課程
    開講学部 : 理学院
    キーワード : 宇宙理学、修士論文、修士論文発表
  • Seminar of Cosmosciences
    開講年度 : 2017
    課程区分 : 修士課程
    開講学部 : 理学院
    キーワード : 宇宙理学、研究発表、雑誌会
  • Seminar of Cosmosciences
    開講年度 : 2017
    課程区分 : 修士課程
    開講学部 : 理学院
    キーワード : 宇宙理学、研究発表、雑誌会
  • Astrophysics 1
    開講年度 : 2017
    課程区分 : 修士課程
    開講学部 : 理学院
    キーワード : 銀河,宇宙物理学,観測天文学
  • Special Research of Cosmosciences 2
    開講年度 : 2017
    課程区分 : 博士後期課程
    開講学部 : 理学院
    キーワード : 宇宙理学、博士後期課程
  • Astrophysics
    開講年度 : 2017
    課程区分 : 学士課程
    開講学部 : 理学部
    キーワード : 星形成、分子雲、放射過程、自己重力系、恒星・恒星進化
  • Atmospheric and Stellar Structures
    開講年度 : 2017
    課程区分 : 学士課程
    開講学部 : 理学部
    キーワード : 星形成、分子雲、放射過程、自己重力系、恒星・恒星進化
  • Special Lectures for Modern Physics
    開講年度 : 2017
    課程区分 : 学士課程
    開講学部 : 理学部
    キーワード : 星間物質、銀河、銀河団、スターバースト、巨大ブラックホール、暗黒物質、宇宙背景放射、サブミリ波銀河、電波銀河、クェーサー、ガンマ線バースト、高速電波バースト
  • Modern Astronomy
    開講年度 : 2017
    課程区分 : 学士課程
    開講学部 : 理学部
    キーワード : 現代天文学,宇宙論,宇宙の構造形成,銀河形成と進化,星形成と進化,観測


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