田中 邦彦 ( タナカ クニヒコ )

Tanaka, Kunihiko

写真a

所属(所属キャンパス)

理工学部 物理学科 ( 矢上 )

職名

助教

外部リンク

経歴 【 表示 / 非表示

  • 2005年04月
    -
    2008年03月

    東京大学, 天文学教育研究センター

  • 2008年04月
    -
    2008年09月

    国立天文台, 野辺山宇宙電波観測所, PD

 

研究分野 【 表示 / 非表示

  • 自然科学一般 / 天文学

研究キーワード 【 表示 / 非表示

  • 電波天文学

研究テーマ 【 表示 / 非表示

  • 銀河系中心、大質量星形成、近傍銀河, 

    2005年04月
    -
    継続中

     研究概要を見る

    Galactic Center, Massive Star Formation, Nearby Galaxies

 

論文 【 表示 / 非表示

  • ALMA [CI] Image of the Circumnuclear Disk of the Milky Way: Inflowing Low-density Molecular Gas

    Kunihiko Tanaka, Makoto Nagai, Kazuhisa Kamegai

    The Astrophysical Journal (IOP science)  2026年

    研究論文(学術雑誌), 共著, 筆頭著者, 査読有り

  • The LMT 2 millimeter receiver system (B4R). II. Science demonstration observations toward Orion-KL/OMC-1

    Yonetsu T., Kawabe R., Yoshimura Y., Taniguchi K., Shimajiri Y., Rojas-García O.S., Gómez-Ruiz A.I., Sakai T., Tanaka K., Hatsukade B., Taniguchi A., Tamura Y., Takekoshi T., Oshima T., Kohno K., Hagimoto M., Hughes D.H., Schloerb F.P., Sánchez-Argüelles D., Souccar K., Narayanan G., Yun M.S., Gómez-Rivera V., Rodríguez-Montoya I., Colín-Beltrán E., Chávez Dagostino M., Zaragoza-Cardiel J., Fujita S., Maezawa H.

    Publications of the Astronomical Society of Japan 77 ( 6 ) 1224 - 1258 2025年12月

    ISSN  00046264

     概要を見る

    We present the results of mapping and single-point spectral scans toward Orion-KL/OMC-1 performed as science demonstrations of a 2mm superconductor–insulator–superconductor receiver, named the Band 4 Receiver (B4R), installed on the Large Millimeter Telescope (LMT), with a diameter of 50m. To prove the capabilities of mapping and spectral scans with the B4R on the LMT, commissioning observations were conducted employing the on-the-fly mapping technique toward Orion-KL/OMC-1, which covers a map size of 5′ × 5′. These mapping observations were performed with two frequency settings providing 10GHz in total (131.4–133.9 and 145.1–147.6GHz; 136.2–138.7 and 149.9–152.4GHz) with a frequency resolution of 76.293kHz. In this study, we conducted spectral line identification analysis for the hot core and compact ridge regions in the Orion-KL with a beam size of 11″–12″. We detected nearly 400 emission lines and identified two recombination lines and 29 molecular species, including isotopologues, deuterated molecules, and vibrational excited states, despite the short integration time. These results of line detection are consistent with those of previous studies. The 29 molecular species include nitrogen (N)-bearing complex organic molecules (COMs) and oxygen (O)-bearing COMs. To demonstrate the capability of the B4R in astrochemistry, we conducted detailed analyses of column densities, rotational temperatures, and relative abundances with respect to H<inf>2</inf> on two representative COMs, N-bearing C<inf>2</inf>H<inf>5</inf>CN and O-bearing CH<inf>3</inf>OCHO in the central 40″ × 40″ area of the map. The wide bandwidth of 10GHz enabled the use of 8 and 34 emission lines, respectively. The spatial differences in the physical and chemical properties between the above two molecules were derived at a spatial resolution of ∼12″. The B4R on the LMT was successfully demonstrated to be powerful for mapping and spectral scans and to have high potential for the study of interstellar chemistry.

  • The LMT 2 Millimeter Receiver System (B4R). I. Overview and Results of Science Demonstration

    Ryohei Kawabe, Takeshi Sakai, Kunihiko Tanaka, Akio Taniguchi, Bunyo Hatsukade, Yoichi Tamura, Yuki Yoshimura, Tatsuya Takekoshi, Tai Oshima, Masato Hagimoto, Teppei Yonetsu, Kotomi Taniguchi, Kotaro Kohno, Hiroyuki Maezawa, David H. Hughes, Peter F. Schloerb, Edgar Colín-Beltrán, Miguel Chávez Dagostino, Víctor Gómez-Rivera, Arturo I. Gómez-Ruiz, Gopal Narayanan, Iván Rodríguez-Montoya, David Sánchez-Argüelles, Yoshito Shimajiri, Kamal Souccar, Min S. Yun, Tom J. L. C. Bakx, Kevin C. Harrington, Shinji Fujita, Fumitaka Nakamura, O. S. Rojas-García, Alfredo A. Montaña Barbano, Javier Zaragoza-Cardiel

    2025年11月

     概要を見る

    We report on the results of the on-sky test and science demonstration conducted with the 2 mm receiver system, B4R, on the 50 m Large Millimeter Telescope (LMT), located at an altitude of 4600 m in Mexico. The B4R receiver was developed based on the dual-polarization sideband-separating mixer technology of the Atacama Large Millimeter/submillimeter Array, and is equipped with a fast Fourier transform digital spectrometer, XFFTS. The primary science objective is the spectroscopic redshift identification of high-redshift dusty star-forming galaxies, complementing the existing 3 mm Redshift Search Receiver by enabling the detection of multiple carbon monoxide lines. Additionally, the B4R receiver broadens the range of science cases possible with the LMT, including astrochemistry, as the 2 mm band encompasses unique molecular lines such as deuterated molecules and shock tracers. During on-site commissioning in 2018 and 2019, we successfully demonstrated on-the-fly mapping and position-switching observations toward the Orion Molecular Cloud 1 and bright high-redshift dusty star-forming galaxies, respectively. We confirmed that the installed B4R system largely met its basic performance specifications. Furthermore, we measured the LMT's aperture efficiencies across the entire B4R frequency range (130-160 GHz), finding them to be roughly consistent with expectations based on a surface accuracy of 100 $μ$m and the receiver optics design. These results with the B4R will enable the most sensitive single-dish spectroscopic observations at 2 mm using the LMT.

  • Shock-induced HCNH+ abundance enhancement in the heart of the starburst galaxy NGC 253 unveiled by ALCHEMI

    Y. Gong, C. Henkel, C. T. Bop, J. G. Mangum, E. Behrens, F. J. Du, S. B. Zhang, S. Martin, K. M. Menten, N. Harada, M. Bouvier, X. D. Tang, K. Tanaka, S. Viti, Y. T. Yan, W. Yang, R. Q. Mao, D. H. Quan

    Astronomy and Astrophysics 2025年

    共著, 査読有り

  • Spatially-resolved spectro-photometric SED Modeling of NGC 253's Central Molecular Zone I. Studying the star formation in extragalactic giant molecular clouds

    Humire, Pedro K. ; Dey, Subhrata ; Ronconi, Tommaso ; Sasse, Victor H. ; Cid Fernandes, Roberto ; Martín, Sergio ; Donevski, Darko search by orcid ; Małek, Katarzyna ; Fernández-Ontiveros, Juan A. ; Song, Yiqing ; Hamed, Mahmoud ; Mangum, Jeffrey G. ; Henkel, Christian ; Rivilla, Víctor M. ; Colzi, Laura ; Harada, N. ; Demarco, Ricardo ; Goyal, Arti ; Meier, David S. ; Panda, Swayamtrupta ; Krabbe, Ângela C. ; Yan, Yaoting ; Lopes, Amanda R. search by orcid ; Sakamoto, K. ; Muller, S. ; Tanaka, K. ; Yoshimura, Y. ; Nakanishi, K. ; Kanaan, Antonio ; Ribeiro, Tiago ; Schoenell, William ; Mendes de Oliveira, Claudia

    Astronomy and Astrophysics 2025年

    研究論文(学術雑誌), 共著, 査読有り

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KOARA(リポジトリ)収録論文等 【 表示 / 非表示

研究発表 【 表示 / 非表示

  • Star Formation Conditions In the Milky Way’s Galactic Central Molecular Zone

    田中 邦彦

    [国際会議]  Star Formation in Different Environments 2017, 

    2017年08月

  • Search for the CO-dark Mass in the Central Molecular Zone by using the ASTE 10-m Telescope

    田中 邦彦

    IAUS 322: The Multi-Messenger Astrophysics of the Galactic Centre, 

    2016年07月

    口頭発表(一般)

  • CO-0.30-0.07: A Candidate Site of Collision-induced Massive Star Formation in the Milky Way's Central Molecular Zon

    田中 邦彦

    [国際会議]  The 6th Zermatt ISM Symposium",, 

    2015年09月

    口頭発表(一般)

  • Giant Molecular Clouds with High Abundance of Atomic Carbon and Cyano Radical in the Milky Way's Central Molecular Zone

    田中 邦彦

    [国際会議]  IAU General Assembly, Meeting #29 (Honolulu, HA, USA) , 

    2015年08月

    ポスター発表, International Astronomical Union

  • The ASTE Galactic Center Survey in the 350 and 500 GHz Bands

    田中 邦彦

    [国際会議]  New Trends in Radio Astronomy in the ALMA Era / the 30th Anniversary of Nobeyama Radio Observatory (Hakone, Kanagawa, Japan) , 

    2012年12月

    口頭発表(一般)

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競争的研究費の研究課題 【 表示 / 非表示

  • 銀河系中心領域での局所的な爆発的星形成現象

    2016年04月
    -
    2019年03月

    日本学術振興会, 科学研究費補助金(文部科学省・日本学術振興会), 田中邦彦, 補助金,  研究代表者

  • ミリ波-サブミリ波観測で探る銀河系中心活動性

    2014年04月
    -
    2016年03月

    日本学術振興会, 科学研究費補助金(文部科学省・日本学術振興会), 補助金,  研究代表者

Works 【 表示 / 非表示

  • 夏の星空から始める天文学:銀河系中心の不思議な天体たち

    田中邦彦

    朝日カルチャーセンター, 

    2013年08月

    その他

 

担当授業科目 【 表示 / 非表示

  • 物理学実験第2

    2025年度

  • 物理学実験第1

    2025年度

  • 物理学B

    2025年度

  • 自然科学実験

    2025年度

  • 物理学実験第2

    2024年度

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所属学協会 【 表示 / 非表示

  • 日本天文学会