Observational study of galaxy evolution with large-scale surveys of molecular clouds along the Galactic plane

2013 Fiscal Year Final Research Report

• Project/Area Number: 22244014
• Research Category: Grant-in-Aid for Scientific Research (A)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Astronomy
• Research Institution: Osaka Prefecture University
• Principal Investigator: ONISHI Toshikazu 大阪府立大学, 理学(系)研究科(研究院), 教授 (30314058)
• Co-Investigator(Kenkyū-buntansha): MURAOKA Kazuyuki 大阪府立大学, 大学院理学系研究科, 助教 (40571287) ; KIMURA Kimihiro 大阪府立大学, 大学院理学系研究科, 非常勤研究員 (10565328)
• Co-Investigator(Renkei-kenkyūsha): DOBASHI Kazuhito 東京学芸大学, 教育学部, 准教授 (20237176) ; OGAWA Hideo 大阪府立大学, 大学院理学系研究科, 教授 (20022717) ; KAWAMURA Akiko 国立天文台, チリ観測所, 特認准教授 (30377931) ; YONEKURA Yoshinori 茨城大学, 宇宙科学教育研究センター, 准教授 (90305665)
• Project Period (FY): 2010-04-01 – 2014-03-31
• Keywords: 電波天文学 / 銀河進化

Research Abstract

We developed waveguide-based Orthomode Transducers (OMT) for dual-polarization observations to be installed on the 1.85m mm-submm telescope, which improved the observation efficiency by a factor of 2. With this system, we have succeeded in covering 1250 square degrees along the Galactic plane including various star forming regions of Orion, Taurus, Perseus, Cygnus, California nebula, Serpens, and so on. The development is summarized in Onishi et al. (2013). We found that 13CO(2-1) line is an important probe to precisely derive the density and temperature of molecular clouds through an observational study of molecular clouds toward Orion molecular clouds.

Research Products

• [Journal Article] Unusually bright 12CO(3-2) condensations in the tidally perturbed Small Magellanic Cloud "tail" (2014)
  • Author(s): Muller, E., Mizuno, N., Minamidani, T., Kawamura, A., Rosie Chen, C.-H., Indebetouw, R., Enokiya, R., Fukui, Y., Gordon, K., Hayakawa, T., Mizuno, Y., Murai, M., Okuda, T., Onishi, T., Tachihara, K., Takekoshi, T., Yamamoto, H., and Yoshiike, S.
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 66 Pages: 4
  • DOI: 10.1093/pasj/pst006
  • Peer Reviewed
• [Journal Article] The Jet and Arc Molecular Clouds toward Westerlund 2, RCW 49, and HESS J1023-575 12CO and 13CO (J = 2-1 and J = 1-0) observations with NANTEN2 and Mopra Telescope (2014)
  • Author(s): Furukawa, N., Ohama, A., Fukuda, T., Torii, K., Hayakawa, T., Sano, H., Okuda, T., Yamamoto, H., Moribe, N., Mizuno, A., Maezawa, H., Onishi, T., Kawamura, A., Mizuno, N., Dawson, J. R., Dame, T. M., Yonekura, Y., Aharonian, F., de Ona Wilhelmi, E., Rowell, G. P., Matsumoto, R., Asahina, Y., and Fukui, Y.
  • Journal Title: The Astrophysical Journal Volume: 781 Pages: 70
  • DOI: 10.1088/0004-637X/781/2/70
  • Peer Reviewed
• [Journal Article] Discovery of Possible Molecular Counterparts to the Infrared Double Helix Nebula in the Galactic Center (2014)
  • Author(s): Enokiya, R., Torii, K., Schultheis, M., Asahina, Y., Matsumoto, R., Furuhashi, E., Nakamura, K., Dobashi, K., Yoshiike, S., Sato, J., Furukawa, N., Moribe, N., Ohama, A., Sano, H., Okamoto, R., Mori, Y., Hanaoka, N., Nishimura, A., Hayakawa, T., Okuda, T., Yamamoto, H., Kawamura, A., Mizuno, N., Onishi, T., Morris, M. R., and Fukui, Y.
  • Journal Title: The Astrophysical Journal Volume: 780 Pages: 72
  • DOI: 10.1088/0004-637X/780/1/72
  • Peer Reviewed
• [Journal Article] Non-thermal X-Rays and Interstellar Gas Toward the γ-Ray Supernova Remnant RX J1713.7-3946 : Evidence for X-Ray Enhancement around CO and H I Clumps (2013)
  • Author(s): Sano, H., Tanaka, T., Torii, K., Fukuda, T., Yoshiike, S., Sato, J., Horachi, H., Kuwahara, T., Hayakawa, T., Matsumoto, H., Inoue, T., Yamazaki, R., Inutsuka, S., Kawamura, A., Tachihara, K., Yamamoto, H., Okuda, T., Mizuno, N., Onishi, T., Mizuno, A., and Fukui, Y.
  • Journal Title: The Astrophysical Journal Volume: 778 Pages: 59
  • DOI: 10.1088/0004-637X/778/1/59
  • Peer Reviewed
• [Journal Article] The 1.85 m mm-submm Telescope : A Newly-Developed CO Multi-Line Surveyor (2013)
  • Author(s): Nishimura, A., Kimura, K., Muraoka, K., Maezawa, H., Onishi, T., Ogawa, H., Dobashi, K., and ALMA 1. 85m Group
  • Journal Title: Astronomical Society of the Pacific Conference Series Volume: 476 Pages: 423
• [Journal Article] A New 45 GHz Band Receiver with Dual Polarization for NRO 45-m Telescope (2013)
  • Author(s): Tokuda, K., Kozu, M., Kimura, K., Muraoka, K., Maezawa, H., Onishi, T., Ogawa, H., Nakamura, F., Kuno, N., Takano, S., Iono, D., Kawabe, R., and Kameno, S.
  • Journal Title: Astronomical Society of the Pacific Conference Series Volume: 476 Pages: 403
• [Journal Article] Cluster Formation in the Sh247/ Sh252/ BFS52 Regions (2013)
  • Author(s): Shimoikura, T., Dobashi, K., Onishi, T., Ogawa, H., Kimura, K., Nishimura, A., Matsumoto, T., Nakamura, F., and Saito, H.
  • Journal Title: Astronomical Society of the Pacific Conference Series Volume: 476 Pages: 365
• [Journal Article] Star Formation : From Giant Molecular Clouds to Prestellar Cores (2013)
  • Author(s): Onishi, T.
  • Journal Title: Astronomical Society of the Pacific Conference Series Volume: 476 Pages: 85
• [Journal Article] A 1.85-m mm-submm Telescope for Large-Scale Molecular Gas Surveys in 12CO, 13CO, and C18O (J = 2-1) (2013)
  • Author(s): Onishi, T., Nishimura, A., Ota, Y., Hashizume, A., Kojima, Y., Minami, A., Tokuda, K., Touga, S., Abe, Y., Kaiden, M., Kimura, K., Muraoka, K., Maezawa, H., Ogawa, H., Dobashi, K., Shimoikura, T., Yonekura, Y., Asayama, S., Handa, T., Nakajima, T., Noguchi, T., and Kuno, N.
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 65 Pages: 78
  • DOI: 10.1093/pasj/65.4.78
  • Peer Reviewed
• [Journal Article] The Neutral Interstellar Gas toward SNR W44 : Candidates for Target Protons in Hadronic γ-Ray Production in a Middle-aged Supernova Remnant (2013)
  • Author(s): Yoshiike, S., Fukuda, T., Sano, H., Ohama, A., Moribe, N., Torii, K., Hayakawa, T., Okuda, T., Yamamoto, H., Tajima, H., Mizuno, N., Nishimura, A., Kimura, K., Maezawa, H., Onishi, T., Mizuno, A., Ogawa, H., Giuliani, A., Koo, B.-C., and Fukui, Y.
  • Journal Title: The Astrophysical Journal Volume: 768 Pages: 179
  • DOI: 10.1088/0004-637X/768/2/179
  • Peer Reviewed
• [Journal Article] Molecular Clumps and Infrared Clusters in the S247, S252, and BFS52 Regions (2013)
  • Author(s): Shimoikura, T., Dobashi, K., Saito, H., Matsumoto, T., Nakamura, F., Nishimura, A., Kimura, K., Onishi, T., and Ogawa, H.
  • Journal Title: The Astrophysical Journal Volume: 768 Pages: 72
  • DOI: 10.1088/0004-637X/768/1/72
  • Peer Reviewed
• [Journal Article] Pattern analysis of young stellar clusters (2013)
  • Author(s): Toth, L. V., Zahorecz, S., Marton, G., Onishi, T., Balazs, L. G., Feher, O., Kawamura, A., Kitamura, Y., Lisztes, M., Nishimura, A., Pasztor, L., Pinter, S., Racz, I., Tamura, M., and Ueno, M.
  • Journal Title: IAU Symposium Volume: 292 Pages: 113
  • DOI: 10.1017/S1743921313000732
• [Journal Article] YSOs in Taurus-Auriga-Perseus and Orion (2013)
  • Author(s): Zahorecz, S., Toth, L. V., Marton, G., Onishi, T., Balazs, L. G., Feher, O., Kawamura, A., Kitamura, Y., Lisztes, M., Nishimura, A., Pasztor, L., Pinter, S., Racz, I., Tamura, M., Sese, R. M. D., and Ueno, M.
  • Journal Title: IAU Symposium Volume: 292 Pages: 64
  • DOI: 10.1017/S1743921313000446
• [Journal Article] A Detailed Study of the Molecular and Atomic Gas toward the γ-Ray Supernova Remnant RX J1713.7-3946 : Spatial TeV γ-Ray and Interstellar Medium Gas Correspondence (2012)
  • Author(s): Fukui, Y., Sano, H., Sato, J., Torii, K., Horachi, H., Hayakawa, T., McClure-Griffiths, N. M., Rowell, G., Inoue, T., Inutsuka, S., Kawamura, A., Yamamoto, H., Okuda, T., Mizuno, N., Onishi, T., Mizuno, A., and Ogawa, H.
  • Journal Title: The Astrophysical Journal Volume: 746 Pages: 82
  • DOI: 10.1088/0004-637X/746/1/82
  • Peer Reviewed
• [Journal Article] Molecular Clouds in the Trifid Nebula M20 : Possible Evidence for a Cloud-Cloud Collision in Triggering the Formation of the First Generation Stars (2011)
  • Author(s): Torii, K., Enokiya, R., Sano, H., Yoshiike, S., Hanaoka, N., Ohama, A., Furukawa, N., Dawson, J. R., Moribe, N., Oishi, K., Nakashima, Y., Okuda, T., Yamamoto, H., Kawamura, A., Mizuno, N., Maezawa, H., Onishi, T., Mizuno, A., and Fukui, Y.
  • Journal Title: The Astrophysical Journal Volume: 738 Pages: 46
  • DOI: 10.1088/0004-637X/738/1/46
  • Peer Reviewed
• [Journal Article] Spitzer Characterization of Dust in the Ionized Medium of the Large Magellanic Cloud (2011)
  • Author(s): Paradis, D., Paladini, R., Noriega-Crespo, A., Lagache, G., Kawamura, A., Onishi, T., and Fukui, Y.
  • Journal Title: The Astrophysical Journal Volume: 735 Pages: 6
  • DOI: 10.1088/0004-637X/735/1/6
  • Peer Reviewed
• [Presentation] 1.85m電波望遠鏡プロジェクトの開発進捗 (VII) (2014)
  • Author(s): 西村淳
  • Organizer: 日本天文学会2014春季年会
  • Place of Presentation: 国際基督教大学
  • Year and Date: 2014-03-20
• [Presentation] Millimeter-submillimeter molecular line observations of Giant Molecular Clouds in the Galaxy and the Magellanic System (2014)
  • Author(s): T. Onishi
  • Place of Presentation: 名古屋大学
  • Year and Date: 2014-01-11
• [Presentation] 1.85m電波望遠鏡プロジェクトの開発進捗 (VI) (2013)
  • Author(s): 徳田一起
  • Organizer: 日本天文学会2013秋季年会
  • Place of Presentation: 東北大学
  • Year and Date: 2013-09-11
• [Presentation] 1.85m電波望遠鏡の観測進捗 : 2012年度の成果 (2013)
  • Author(s): 西村淳
  • Organizer: 日本天文学会2013秋季年会
  • Place of Presentation: 東北大学
  • Year and Date: 2013-09-10
• [Presentation] 1.85m電波望遠鏡プロジェクトの開発進捗 (V) (2013)
  • Author(s): 西村淳
  • Organizer: 日本天文学会2013春季年会
  • Place of Presentation: 埼玉大学
  • Year and Date: 2013-03-22
• [Presentation] Star Formation : From Giant Molecular Clouds to Prestellar Cores (基調講演) (2012)
  • Author(s): T. Onishi
  • Organizer: New Trends in Radio Astronomy in the ALMA Era
  • Place of Presentation: 箱根プリンスホテル
  • Year and Date: 2012-12-04
• [Presentation] 1.85m電波望遠鏡プロジェクトの開発進捗 (IV) (2012)
  • Author(s): 西村淳
  • Organizer: 日本天文学会2012秋季年会
  • Place of Presentation: 大分大学
  • Year and Date: 2012-09-20
• [Presentation] 1.85 m電波望遠鏡による銀河面分子雲の広域探査 II (2012)
  • Author(s): 徳田一起
  • Organizer: 日本天文学会2012秋季年会
  • Place of Presentation: 大分大学
  • Year and Date: 2012-09-20
• [Presentation] 大阪府立大学 1.85mミリ波望遠鏡で見た金環日食 (2012)
  • Author(s): 大西利和
  • Organizer: 日本天文学会2012秋季年会
  • Place of Presentation: 大分大学
  • Year and Date: 2012-09-20
• [Presentation] 1.85m電波望遠鏡プロジェクトの開発進捗(III) (2012)
  • Author(s): 西村淳
  • Organizer: 日本天文学会2012春季年会
  • Place of Presentation: 龍谷大学
  • Year and Date: 2012-03-20
• [Presentation] Molecular cloud survey with newly-developed 1.85m mm-submm telescope (2011)
  • Author(s): A. Nishimura
  • Organizer: the 12th Workshop on Submillimeter-Wave Receiver Technologies in Eastern Asia
  • Place of Presentation: Yonsei university campus in Seoul, Korea
  • Year and Date: 2011-12-05
• [Presentation] Extensive survey of molecular clouds in multi-transition CO lines toward the Galaxy and the Magellanic Clouds (2011)
  • Author(s): T. Onishi
  • Organizer: Formation of Stars & Planets
  • Place of Presentation: 石垣島
  • Year and Date: 2011-10-04
  • Invited
• [Presentation] 1.85m電波望遠鏡プロジェクトの開発進捗(II) (2011)
  • Author(s): 西村淳
  • Organizer: 日本天文学会2011秋季年会
  • Place of Presentation: 鹿児島大学
  • Year and Date: 2011-09-21
• [Presentation] 1.85m電波望遠鏡による12CO, 13CO, C18O(J=2-1)スペクトルを用いた銀河系分子雲広域観測 (2011)
  • Author(s): 大西利和
  • Organizer: 日本天文学会2011秋季年会
  • Place of Presentation: 鹿児島大学
  • Year and Date: 2011-09-19
• [Presentation] 1.85m電波望遠鏡によるオリオン分子雲の広域観測 (2011)
  • Author(s): 西村淳
  • Organizer: 日本天文学会2011秋季年会
  • Place of Presentation: 鹿児島大学
  • Year and Date: 2011-09-19
• [Presentation] 1.85m電波望遠鏡による銀河面分子雲の広域探査 (2011)
  • Author(s): 辻英俊
  • Organizer: 日本天文学会2011秋季年会
  • Place of Presentation: 鹿児島大学
  • Year and Date: 2011-09-19
• [Presentation] 85m望遠鏡による Cygnus OB7領域の分子雲観測 (2011)
  • Author(s): 阪口翼
  • Organizer: 日本天文学会2011秋季年会
  • Place of Presentation: 鹿児島大学
  • Year and Date: 2011-09-19
• [Presentation] Millimeter-submillimeter molecular line observations of Giant Molecular Clouds in the Galaxy and the Magellanic System (2011)
  • Author(s): T. Onishi
  • Organizer: Large Aperture Millimeter/Submillimeter Telescopes in the ALMA Era
  • Year and Date: 2011-09-12
  • Invited
• [Presentation] 1.85m電波望遠鏡プロジェクトの開発進捗 (2011)
  • Author(s): 西村淳
  • Organizer: 日本天文学会2011春季年会
  • Place of Presentation: 筑波大学
  • Year and Date: 2011-03-17