Detailed study of molecular gas along the Galactic Plane with ulta-wideband mm observations

• Project/Area Number: 26247026
• 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(Renkei-kenkyūsha): MURAOKA Kazuyuki 大阪府立大学, 大学院理学系研究科, 准教授 (40571287) ; OGAWA Hideo 大阪府立大学, 大学院理学系研究科, 客員教授 (20022717) ; MAEZAWA Hiroyuki 大阪府立大学, 大学院理学系研究科, 准教授 (00377780) ; KIMURA Kimihiro 大阪府立大学, 大学院理学系研究科, 非常勤研究員 (10565328) ; TOSAKI Tomoka 上越教育大学, 学校教育研究科, 教授 (40356126) ; WATANABE Yoshimasa 筑波大学, 数理物質系物理学域, 助教 (20586929) ; DOBASHI Kazuhito 東京学芸大学, 教育学部, 教授 (20237176) ; KAWAMURA Akiko 国立天文台, チリ観測所, 特任准教授 (30377931)
• Project Period (FY): 2014-04-01 – 2018-03-31
• Project Status: Completed (Fiscal Year 2017)
• Budget Amount: ¥41,080,000 (Direct Cost: ¥31,600,000、Indirect Cost: ¥9,480,000); Fiscal Year 2017: ¥7,800,000 (Direct Cost: ¥6,000,000、Indirect Cost: ¥1,800,000); Fiscal Year 2016: ¥9,620,000 (Direct Cost: ¥7,400,000、Indirect Cost: ¥2,220,000); Fiscal Year 2015: ¥11,050,000 (Direct Cost: ¥8,500,000、Indirect Cost: ¥2,550,000); Fiscal Year 2014: ¥12,610,000 (Direct Cost: ¥9,700,000、Indirect Cost: ¥2,910,000)
• Keywords: 電波天文学 / 巨大分子雲 / 1.85m電波望遠鏡 / ALMA / 銀河進化

Outline of Final Research Achievements

In this research, we aim to carry out extensive observations of millimeter wave molecular lines in order to reveal the physical properties and the evolutionary status of giant molecular clouds by statistically investigating the distribution of trace molecules in terms of the density, temperature, the star formation activities, and so on. We developed a spectroscopic system capable of observing a wide frequency band using a waveguide type 90 degree Hybrid Coupler and a waveguide type band separation filter. This system was installed on a 1.85 m radio telescope and succeeded in observations of various trace molecules. In order to compare with the observation result of the galactic plane, we also carried out an observational study of giant molecular clouds in the Magellanic Clouds by using ALMA telescope.

Research Products

• [Int'l Joint Research] エトヴェシュ・ロラーンド大学/コンコリ天文台(Hungary)
• [Journal Article] Molecular Cloud Structures and Massive Star Formation in N159 (2018)
  • Author(s): Nayak O.、Meixner M.、Fukui Y.、Tachihara K.、Onishi T.、Saigo K.、Tokuda K.、Harada R.
  • Journal Title: The Astrophysical Journal Volume: 854 Issue: 2 Pages: 154-154
  • DOI: 10.3847/1538-4357/aaab5f
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] The Detection of Hot Cores and Complex Organic Molecules in the Large Magellanic Cloud (2018)
  • Author(s): Sewilo, M., Indebetouw, R., Charnley, S. B., Zahorecz, S., Oliveira, J. M., van Loon, J. T., Ward, J. L., Chen, C.-H. R., Wiseman, J., Fukui, Y., Kawamura, A., Meixner, M., Onishi, T., and Schilke, P.
  • Journal Title: The Astrophysical Journal Volume: 853 Issue: 2 Pages: L19-L19
  • DOI: 10.3847/2041-8213/aaa079
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] ALMA Reveals Molecular Cloud N55 in the Large Magellanic Cloud as a Site of Massive Star Formation (2018)
  • Author(s): Naslim, N., Tokuda, K., Onishi, T., Kemper, F., Wong, T., Morata, O., Takada, S., Harada, R., Kawamura, A., Saigo, K., Indebetouw, R., Madden, S. C., Hony, S., and Meixner, M.
  • Journal Title: The Astrophysical Journal Volume: 853 Issue: 2 Pages: 175-175
  • DOI: 10.3847/1538-4357/aaa5b0
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Observational demonstration of a high image rejection SIS mixer receiver using a new waveguide filter at 230 GHz (2017)
  • Author(s): Hasegawa, Yutaka; Asayama, Shinichiro; Harada, Ryohei; Tokuda, Kazuki; Kimura, Kimihiro; Ogawa, Hideo; Onishi, Toshikazu
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 69 Issue: 6
  • DOI: 10.1093/pasj/psx098
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] ALMA Observations of a Quiescent Molecular Cloud in the Large Magellanic Cloud (2017)
  • Author(s): Wong, T., Hughes, A., Tokuda, K., Indebetouw, R., Bernard, J.-P., Onishi, T., Wojciechowski, E., Bandurski, J. B., Kawamura, A., Roman-Duval, J., Cao, Y., Chen, C.-H. R., Chu, Y.-h., Cui, C., Fukui, Y., Montier, L., Muller, E., Ott, J., Paradis, D., Pineda, J. L., Rosolowsky, E., and Sewilo, M.
  • Journal Title: The Astrophysical Journal Volume: 850 Issue: 2 Pages: 139-139
  • DOI: 10.3847/1538-4357/aa9333
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Correlation of gas dynamics and dust in the evolved filament G82.65-02.00 (2017)
  • Author(s): Saajasto M., Juvela M., Dobashi K., Shimoikura T., Ristorcelli I., Montillaud J., Malinen J., Pelkonen V. M., Feher O., Rivera-Ingraham A., Toth V., Montier L., Bernard J.-Ph., Onishi, T.
  • Journal Title: Astronomy & Astrophysics Volume: 608 Pages: A21-A21
  • DOI: 10.1051/0004-6361/201630005
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] A Detailed Study of the Interstellar Protons toward the TeV γ-Ray SNR RX J0852.0-4622 (G266.2-1.2, Vela Jr.): The Third Case of the γ-Ray and ISM Spatial Correspondence (2017)
  • Author(s): Fukui Y., Sano H., Sato J., Okamoto R., Fukuda T., Yoshiike S., Hayashi K., Torii K., Hayakawa T., Rowell G., Filipovic M. D., Maxted N., McClure-Griffiths N. M., Kawamura A., Yamamoto H., Okuda T., Mizuno N., Tachihara K., Onishi T., Mizuno A., Ogawa H.
  • Journal Title: The Astrophysical Journal Volume: 850 Issue: 1 Pages: 71-89
  • DOI: 10.3847/1538-4357/aa9219
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] A Detached Protostellar Disk around a ~0.2 Mo Protostar in a Possible Site of a Multiple Star Formation in a Dynamical Environment in Taurus (2017)
  • Author(s): Tokuda Kazuki、Onishi Toshikazu、Saigo Kazuya、Hosokawa Takashi、Matsumoto Tomoaki、Inutsuka Shu-ichiro、Machida Masahiro N.、Tomida Kengo、Kunitomo Masanobu、Kawamura Akiko、Fukui Yasuo、Tachihara Kengo
  • Journal Title: The Astrophysical Journal Volume: 849 Issue: 2 Pages: 101-101
  • DOI: 10.3847/1538-4357/aa8e9e
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] FOREST unbiased Galactic plane imaging survey with the Nobeyama 45 m telescope (FUGIN). I. Project overview and initial results (2017)
  • Author(s): Umemoto, Tomofumi et al.
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 69 Issue: 5 Pages: 78-96
  • DOI: 10.1093/pasj/psx061
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] ALMA Observations of N83C in the Early Stage of Star Formation in the Small Magellanic Cloud (2017)
  • Author(s): Muraoka, K., Homma, A., Onishi, T., Tokuda, K., Harada, R., Morioka, Y., Zahorecz, S., Saigo, K., Kawamura, A., Mizuno, N., Minamidani, T., Muller, E., Fukui, Y., Meixner, M., Indebetouw, R., Sewilo, M., and Bolatto, A.
  • Journal Title: The Astrophysical Journal Volume: 844 Issue: 2 Pages: 98-98
  • DOI: 10.3847/1538-4357/aa7a0b
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Discovery of Molecular and Atomic Clouds Associated with the Magellanic Superbubble 30 Doradus C (2017)
  • Author(s): Sano H., Yamane Y., Voisin F., Fujii K., Yoshiike S., Inaba T., Tsuge K., Babazaki Y., Mitsuishi I., Yang R., Aharonian F., Rowell G., Filipovic M. D., Mizuno N., Tachihara K., Kawamura A., Onishi T., Fukui Y.
  • Journal Title: The Astrophysical Journal Volume: 843 Issue: 1 Pages: 61-67
  • DOI: 10.3847/1538-4357/aa73e0
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] A Massive Molecular Outflow in the Dense Dust Core AGAL G337.916-00.477 (2017)
  • Author(s): Torii, K., Hattori, Y., Hasekgawa, K., Ohama A. et al.
  • Journal Title: The Astrophysical Journal Volume: 840 Issue: 2 Pages: 111-121
  • DOI: 10.3847/1538-4357/aa6fa8
  • Peer Reviewed / Open Access
• [Journal Article] Wide-field 12CO (J=2-1) and 13CO (J=2-1) Observations toward the Aquila Rift and Serpens Molecular Cloud Complexes. I. Molecular Clouds and Their Physical Properties (2017)
  • Author(s): Nakamura, F., Dobashi, K., Shimoikura, T., Tanaka, T., and Onishi, T.
  • Journal Title: The Astrophysical Journal Volume: 837 Issue: 2 Pages: 154-154
  • DOI: 10.3847/1538-4357/aa5ea6
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Triggered O Star Formation in M20 via Cloud-Cloud Collision: Comparisons between High-resolution CO Observations and Simulations (2017)
  • Author(s): Torii, K., Hattori, Y., Hasegawa, K., Ohama, A., Haworth, T. J., Shima, K., Habe, A., Tachihara, K., Mizuno, N., Onishi, T., Mizuno, A., and Fukui, Y.
  • Journal Title: The Astrophysical Journal Volume: 835 Issue: 2 Pages: 142-153
  • DOI: 10.3847/1538-4357/835/2/142
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] An analysis of star formation with Herschel in the Hi-GAL Survey. II. The tips of the Galactic bar (2017)
  • Author(s): Veneziani, M., Schisano, E., Elia, D., Noriega-Crespo, A., Carey, S., Di Giorgio, A., Fukui, Y., Maiolo, B. M. T., Maruccia, Y., Mizuno, A., Mizuno, N., Molinari, S., Mottram, J. C., Moore, T. J. T., Onishi, T., et al.
  • Journal Title: Astronomy & Astrophysics Volume: 599 Pages: A7-A7
  • DOI: 10.1051/0004-6361/201423474
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Kinematic Structure of Molecular Gas around High-mass YSO, Papillon Nebula, in N159 East in the Large Magellanic Cloud: A New Perspective with ALMA (2017)
  • Author(s): Saigo, K., Onishi, T., Nayak, O., Meixner, M., Tokuda, K., Harada, R., Morioka, Y., Sewilo, M., Indebetouw, R., Torii, K., Kawamura, A., Ohama, A., Hattori, Y., Yamamoto, H., Tachihara, K., Minamidani, T., Inoue, T., Madden, S., Galametz, M., Lebouteiller, V., Chen, C.-H. R., Mizuno, N., and Fukui, Y.
  • Journal Title: The Astrophysical Journal Volume: 835 Issue: 1 Pages: 108-119
  • DOI: 10.3847/1538-4357/835/1/108
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] The 1.1 mm Continuum Survey of the Small Magellanic Cloud: Physical Properties and Evolution of the Dust-selected Clouds (2017)
  • Author(s): Takekoshi, Tatsuya; Minamidani, Tetsuhiro; Komugi, Shinya; Kohno, Kotaro; Tosaki, Tomoka; Sorai, Kazuo; Muller, Erik; Mizuno, Norikazu; Kawamura, Akiko; Onishi, Toshikazu; Fukui, Yasuo; Ezawa, Hajime; Oshima, Tai; Scott, Kimberly S.; Austermann, Jason E.; Matsuo, Hiroshi; Aretxaga, Itziar et al.
  • Journal Title: ApJ Volume: 835 Issue: 1 Pages: 55-71
  • DOI: 10.3847/1538-4357/835/1/55
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] A New Approach to Suppress the Effect of Machining Error for Waveguide Septum Circular Polarizer at 230 GHz Band in Radio Astronomy (2017)
  • Author(s): Hasegawa, Y., Harada, R., Tokuda, K., Kimura, K., Ogawa, H., Onishi, T., Nishimura, A., Han, J., Inoue, M.
  • Journal Title: J Infrared Milli Terahz Waves Volume: 38 Issue: 5 Pages: 638-652
  • DOI: 10.1007/s10762-017-0364-3
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Radiative and mechanical feedback into the molecular gas in the Large Magellanic Cloud. I. N159W (2016)
  • Author(s): Lee, M.-Y., Madden, S. C., Lebouteiller, V., Gusdorf, A., Godard, B., Wu, R., Galametz, M., Cormier, D., Le Petit, F., Roueff, E., Bron, E., Carlson, L., Chevance, M., Fukui, Y., Galliano, F., Hony, S., Hughes, A., Indebetouw, R., Israel, F. P., Kawamura, A., ... , Onishi, T., et al.
  • Journal Title: Astronomy & Astrophysics Volume: 596 Pages: A85-A85
  • DOI: 10.1051/0004-6361/201628098
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Revealing a Detailed Mass Distribution of a High-density Core MC27/L1521F in Taurus with ALMA (2016)
  • Author(s): Tokuda, K., Onishi, T., Matsumoto, T., Saigo, K., Kawamura, A., Fukui, Y., Inutsuka, S.-i., Machida, M. N., Tomida, K., Tachihara, K., and Andre, P.
  • Journal Title: The Astrophysical Journal Volume: 826 Issue: 1 Pages: 26-35
  • DOI: 10.3847/0004-637x/826/1/26
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] The Two Molecular Clouds in RCW 38: Evidence for the Formation of the Youngest Super Star Cluster in the Milky Way Triggered by Cloud-Cloud Collision (2016)
  • Author(s): Fukui, Y.; Torii, K.; Ohama, A.; Hasegawa, K.; Hattori, Y.; Sano, H.; Ohashi, S.; Fujii, K.; Kuwahara, S.; Mizuno, N.; Dawson, J. R.; Yamamoto, H.; Tachihara, K.; Okuda, T.; Onishi, T.; Mizuno, A.
  • Journal Title: The Astrophysical Journal Volume: 820 Issue: 1 Pages: 26-42
  • DOI: 10.3847/0004-637x/820/1/26
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] The dust properties and physical conditions of the interstellar medium in the LMC massive star-forming complex N11 (2016)
  • Author(s): Galametz, M., Hony, S., Albrecht, M., Galliano, F., Cormier, D., Lebouteiller, V., Lee, M. Y., Madden, S. C., Bolatto, A., Bot, C., Hughes, A., Israel, F., Meixner, M., Oliviera, J. M., Paradis, D., Pellegrini, E., Roman-Duval, J., Rubio, M., Sewil;o, M., Fukui, Y., Kawamura, A., and Onishi, T.
  • Journal Title: Monthly Notices of the Royal Astronomical Society Volume: 456 Issue: 2 Pages: 1767-1790
  • DOI: 10.1093/mnras/stv2773
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] High-mass Star Formation Triggered by Collision between CO Filaments in N159 West in the Large Magellanic Cloud (2015)
  • Author(s): Fukui, Yasuo; Harada, Ryohei; Tokuda, Kazuki; Morioka, Yuuki; Onishi, Toshikazu; Torii, Kazufumi et al.
  • Journal Title: The Astrophysical Journal Letters Volume: 807 Issue: 1 Pages: 4-9
  • DOI: 10.1088/2041-8205/807/1/l4
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Cloud-Cloud Collision as a Trigger of the High-mass Star Formation: a Molecular Line Study in RCW120 (2015)
  • Author(s): Torii, K.; Hasegawa, K.; Hattori, Y.; Sano, H.; Ohama, A.; Yamamoto, H.; Tachihara, K.; Soga, S.; Shimizu, S.; Okuda, T.; Mizuno, N.; Onishi, T.; Mizuno, A.; Fukui, Y.
  • Journal Title: The Astrophysical Journal Volume: 806 Issue: 1 Pages: 7-27
  • DOI: 10.1088/0004-637x/806/1/7
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] An origin of arc structures deeply embedded in dense molecular cloud cores (2015)
  • Author(s): Matsumoto, Tomoaki; Onishi, Toshikazu; Tokuda, Kazuki; Inutsuka, Shu-ichiro
  • Journal Title: Monthly Notices of the Royal Astronomical Society: Letters Volume: 449(1) Issue: 1 Pages: L123-L127
  • DOI: 10.1093/mnrasl/slv031
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Cloud-cloud collision as a trigger of the high-mass star formation; a molecular line study in RCW120 (2015)
  • Author(s): Torii, K., Hasegawa, K., Hattori, Y., Sano, H., Ohama, A., Yamamoto, H., Tachihara, K., Soga, S., Shimizu, S., Okuda, T., Mizuno, N., Onishi, T., Mizuno, A., and Fukui, Y.
  • Journal Title: The Astrophysical Journal Volume: 印刷中
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] A Detailed Study of Non-thermal X-Ray Properties and Interstellar Gas toward the γ-Ray Supernova Remnant RX J1713.7–3946 (2015)
  • Author(s): H.Sano, T.Fukuda, S.Yoshiike, Y.Fukui・・・他18名
  • Journal Title: The Astrophysical Journal Volume: 799 Issue: 2 Pages: 175-175
  • DOI: 10.1088/0004-637x/799/2/175
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Formation of dense structures induced by filament collisions. Correlation of density, kinematics, and magnetic field in the Pipe nebula (2015)
  • Author(s): Frau, P., Girart, J. M., Alves, F. O., Franco, G. A. P., Onishi, T., and Roman-Zuniga, C. G.
  • Journal Title: Astronomy and Astrophysics Volume: 574 Pages: L6-L6
  • DOI: 10.1051/0004-6361/201425234
  • Peer Reviewed
• [Journal Article] Optically thick HI dominant in the local interstellar medium; an alternative interpretation to "dark gas" (2015)
  • Author(s): Fukui, Y., Torii, K., Onishi, T., Yamamoto, H., Okamoto, R., Hayakawa, T., Tachihara, K., Dickey, J. M., Sano, H.
  • Journal Title: The Astrophysical Journal Volume: 798 Issue: 1 Pages: 18-18
  • DOI: 10.1088/0004-637x/798/1/6
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Dust and Gas in the Magellanic Clouds from the HERITAGE Herschel Key Project. II. Gas-to-dust Ratio Variations across Interstellar Medium Phases (2014)
  • Author(s): Roman-Duval, J., Fukui, Y. et al.
  • Journal Title: The Astrophysical Journal Volume: 797 Issue: 2 Pages: 86-86
  • DOI: 10.1088/0004-637x/797/2/86
  • Peer Reviewed
• [Journal Article] Dust and Gas in the Magellanic Clouds from the HERITAGE Herschel Key Project. I. Dust Properties and Insights into the Origin of the Submillimeter Excess Emission (2014)
  • Author(s): Gordon, K. D., Fukui, Y. et al.
  • Journal Title: The Astrophysical Journal Volume: 797 Issue: 2 Pages: 85-85
  • DOI: 10.1088/0004-637x/797/2/85
  • Peer Reviewed
• [Journal Article] Dense molecular clumps associated with the Large Magellanic Cloud Supergiant shell LMC 4 and LMC 5 (2014)
  • Author(s): K. Fujii
  • Journal Title: Astrophysical Journal Volume: 796 Issue: 2 Pages: 123-145
  • DOI: 10.1088/0004-637x/796/2/123
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Cluster Formation Triggered by Filament Collisions in Serpens South (2014)
  • Author(s): Fumitaka Nakamura, Koji Sugitani, Takahiro Tanaka, Hiroyuki Nishitani, Kazuhito Dobashi, Tomomi Shimoikura, Yoshito Shimajiri, Ryohei Kawabe, Yoshinori Yonekura, Izumi Mizuno, Kimihiko Kimura, Kazuki Tokuda, Minato Kozu, Nozomi Okada, Yutaka Hasegawa, Hideo Ogawa, Seiji Kameno, Hiroko Shinnaga, Munetake Momose, 他７名
  • Journal Title: The Astrophysical Journal Letters Volume: 791 Issue: 2 Pages: L23-L23
  • DOI: 10.1088/2041-8205/791/2/l23
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] ALMA Observations of a High-density Core in Taurus : Dynamical Gas Interaction at the Possible Site of a Multiple Star Formation (2014)
  • Author(s): K. Tokuda, T. Onishi, K. Saigo, A. Kawamura, Y. Fukui, T. Matsumoto, S.-i. Inutsuka, M, N. Machida, K. Tomida, K. Tachihara
  • Journal Title: The Astrophysical Journal Letters Volume: 789 Issue: 1 Pages: L4-L4
  • DOI: 10.1088/2041-8205/789/1/l4
  • Peer Reviewed
• [Presentation] 大小マゼラン雲におけるミリ波・サブミリ波観測の現状 (2018)
  • Author(s): 大西利和
  • Organizer: 日本天文学会2018年春季年会
  • Invited
• [Presentation] Tracing the evolution of GMCs in the LMC with CO (2-1) ALMA observations (2018)
  • Author(s): Sarolta Zahorecz, Tokuda Kazuki (Osaka Pref. Univ. / NAOJ), Kawamura Akiko, Saigo Kazuya (NAOJ), Goto Kenta, Takada Shota, Onishi Toshikazu, Harada Ryohei, Homma Aya (Osaka Pref. Univ.), Margaret Meixner, Omnarayani Nayak (STScI), Marta Sewilo (NASA / GSFC),et al.
  • Organizer: 日本天文学会2018年春季年会
• [Presentation] ALMAによる大マゼラン雲の巨大分子雲N159の観測 I: 空間分解されたフィラメント分子雲とCO Pillar (2018)
  • Author(s): 徳田一起 (大阪府立大学/国立天文台), 福井康雄, 立原研悟, 西村淳, 佐野栄俊, 犬塚修一郎, 井上剛志, Doris Arzoumanian (名古屋大学), 西合一矢, 河村晶子, 鳥居和史, 南谷哲宏 (国立天文台), Sarolta Zahorecz (大阪府立大学/国立天文台), 原田遼平, 高田勝太, 本間愛彩, 大西利和 (大阪府立大学)
  • Organizer: 日本天文学会2018年春季年会
• [Presentation] ALMAによる大マゼラン雲の巨大分子雲N159の観測 II: N159 W領域のフィラメント衝突における大質量星形成 (2018)
  • Author(s): 原田遼平 (大阪府立大学), 福井康雄, 立原研悟, 西村淳, 佐野栄俊, 犬塚修一郎, 井上剛志, Doris Arzoumanian (名古屋大学), 西合一矢, 河村晶子, 鳥居和史, 南谷哲宏 (国立天文台), 徳田一起, Sarolta Zahorecz (大阪府立大学/国立天文台), 高田勝太, 本間愛彩, 大西利和 (大阪府立大学)
  • Organizer: 日本天文学会2018年春季年会
• [Presentation] ALMA 望遠鏡による小マゼラン雲内の星形成初期段階領域N83Cの中性炭素原子観測 II (2018)
  • Author(s): 本間愛彩, 原田遼平, 大西利和, 村岡和幸, 高田勝太, 前澤裕之 (大阪府大), 徳田一起, Sarolta Za- horecz (大阪府大/NAOJ), 河村晶子, 西合一矢, 水野範和, 南谷哲宏 (NAOJ), 福井康雄 (名古屋大学), Margaret Meixner (Johns Hopkins), Remy Indebetouw (NRAO), Marta Sewilo (NASA/GSFC), Alberto Bolatto (Univ. of Maryland)
  • Organizer: 日本天文学会2018年春季年会
• [Presentation] 1.85m電波望遠鏡による広帯域観測のための新受信機システム開発 (2018)
  • Author(s): 上田翔汰, 増井翔, 小西諒太郎, 後藤健太, 杉内拓, 高田勝太, 本間愛彩, 原田遼平, 岡田望, 阿部安宏, 木村公洋, 村岡和幸, 前澤裕之, 大西利和, 小川英夫 (大阪府立大学), 徳田一起 (NAOJ/大阪府立大学), 長谷川豊 (ISAS), 逆井啓佑, 佐谷昴樹, 佐伯駿, 稲葉哲大, 栗田大樹, 西村淳, 大浜晶生 (名古屋大学)
  • Organizer: 日本天文学会2018年春季年会
• [Presentation] おうし座暗黒星雲における分子雲コアの大局的分布 II (2017)
  • Author(s): 有馬宣明, 徳田一起, 原田遼平, 前澤裕之, 小川英夫, 大西利和 (大阪府立大学), 西村淳 (名古屋大学)
  • Organizer: 日本天文学会2017年春季年会
  • Place of Presentation: 九州大学
  • Year and Date: 2017-03-15
• [Presentation] 大マゼラン雲における孤立した大質量原始星に付随する分子ガス観測(4) (2017)
  • Author(s): 原田遼平, 大西利和, 徳田一起, 森岡祐貴, 高田勝太, 本間愛彩 (大阪府立大学), 西合一矢, 河村晶子, Erik Muller (NAOJ), 福井康雄 (名古屋大学), Annie Hughes, Jean-Philippe Bernard(IRAP), Margaret Meixner(STScI), 等
  • Organizer: 日本天文学会2017年春季年会
  • Place of Presentation: 九州大学
  • Year and Date: 2017-03-15
• [Presentation] 天の川銀河、マゼラン雲における分子雲研究 (2017)
  • Author(s): 大西利和
  • Organizer: ALMA Workshop "近傍銀河 M83 2017"
  • Place of Presentation: 国立天文台三鷹
  • Year and Date: 2017-02-20
  • Invited
• [Presentation] ALMA を用いた LMC/SMC 観測 Summary (2017)
  • Author(s): 大西利和
  • Organizer: 大小マゼラン雲における大質量星・星団形成
  • Invited
• [Presentation] Revealing the initial conditions of star formation in the Galaxy and Magellanic Clouds (2017)
  • Author(s): Toshikazu Onishi
  • Organizer: ALMA/45m/ASTE Users Meeting 2017
• [Presentation] 1.85m 電波望遠鏡による広帯域観測のための新受信機開発 (2017)
  • Author(s): 上田翔汰, 増井翔, 小西諒太郎, 後藤健太, 杉内拓, 黒田麻友, 高田勝太, 本間愛彩, 原田遼平, 岡田望, 阿部安宏, 木村公洋, 村岡和幸, 前澤裕之, 大西利和, 小川英夫 (大阪府立大学), 徳田一起 (国立天文台/ 大阪府立大学), 長谷川豊 (ISAS), 西村淳 (名古屋大学)
  • Organizer: 日本天文学会2017年秋季年会
• [Presentation] ALMA を用いた大マゼラン雲における分子雲高分解能観測: GMCの進化II (2017)
  • Author(s): 高田勝太 (大阪府大), 河村晶子 (NAOJ), 大西利和, 原田遼平, 本間愛彩 (大阪府大), 徳田一起, Sarolta Zahorecz (大阪府大/NAOJ), Margaret Meixner, Omnarayani Nayak (STScI), Marta Sewilo (NASA/GSFC), Remy Indebetouw (University of Virginia, NRAO), 福井康雄 (名古屋大学)
  • Organizer: 日本天文学会2017年秋季年会
• [Presentation] ALMA 望遠鏡による小マゼラン雲内の星形成初期段階領域 N83C の中性炭素原子観測 (2017)
  • Author(s): 本間愛彩, 原田遼平, 大西利和, 村岡和幸, 高田勝太 前澤裕之 (大阪府大), 徳田一起, Sarolta Zahorecz (大阪府大/NAOJ), 河村晶子, 西合一矢, Erik Muller, 水野範和, 南谷哲宏 (NAOJ), 福井康雄 (名古屋大 学), Margaret Mexiner (Johns Hopkins), Remy Indebetouw (NRAO), Marta Sewilo (NASA/GSFC), Alberto Bolatto (Univ. of Maryland)
  • Organizer: 日本天文学会2017年秋季年会
• [Presentation] 大マゼラン雲における孤立した大質量原始星に付随する分子ガス観測(5) (2017)
  • Author(s): 原田遼平, 大西利和, 高田勝太, 本間愛彩 (大阪府大), 徳田一起, Sarolta Zahorecz(大阪府大/NAOJ), 河村晶子, Erik Muller (NAOJ), 福井康雄 (名古屋大学), Annie Hughes, Jean-Philippe Bernard (IRAP), Margaret Meixner (STScI), Omnarayani Nayak (Johns Hopkins Univ.), 等
  • Organizer: 日本天文学会2017年秋季年会
• [Presentation] 分子雲コアMC27/L1521Fにおける~0.2 Mo超低輝度原始星のALMA観測 (2017)
  • Author(s): 徳田一起 (大阪府大/国立天文台チリ観測所) , 大西利和 (大阪府大), 西合一矢, 河村晶子 (国立天文台 チリ観測所), 細川隆史 (京都大), 松本倫明 (法政大), 町田正博 (九州大), 富田賢吾 (大阪大), 犬塚修 一郎, 國友正信, 福井康雄, 立原研悟 (名古屋大)
  • Organizer: 日本天文学会2017年秋季年会
• [Presentation] Science Review of Nearby Galaxy and Star Formation (2016)
  • Author(s): T. Onishi
  • Organizer: ALMA/45m/ASTE Users Meeting 2016
  • Place of Presentation: NAOJ Mitaka campus
  • Year and Date: 2016-12-19
  • Invited
• [Presentation] Large Submillimeter Telescope (LST) (2016)
  • Author(s): T. Onishi (Osaka Pref. Univ.), R. Kawabe, T. Oshima, T. Takekoshi, (NAOJ), K. Kohno, Y. Tamura, S. Ishii (U. Tokyo) and LST Working Group
  • Organizer: Metrology and Control of Large Telescopes
  • Place of Presentation: Green Bank, West Virginia, USA
  • Year and Date: 2016-09-20
  • Int'l Joint Research
• [Presentation] おうし座分子雲における低柱密度環境下での分子雲コアの検出 (2016)
  • Author(s): 徳田一起, 森岡祐貴, 前澤裕之, 西合一矢, 大西利和 (大阪府立大学), 河村晶子 (NAOJ), 立原研 悟, 福井康雄 (名古屋大学)
  • Organizer: 日本天文学会2016年秋季年会
  • Place of Presentation: 愛媛大学
  • Year and Date: 2016-09-14
• [Presentation] ALMA 望遠鏡による小マゼラン雲内の星形成初期段階領域 N83 の高分解 能観測 (2016)
  • Author(s): 本間愛彩, 大西利和, 西合一矢, 村岡和幸, 徳田一起, 原田遼平, 森岡祐貴, 高田勝太 (大阪府立大 学), 河村晶子, Erik Muller, 水野範和, 南谷哲宏 (NAOJ), 福井康雄 (名古屋大学), Margaret Mexiner 等
  • Organizer: 日本天文学会2016年秋季年会
  • Place of Presentation: 愛媛大学
  • Year and Date: 2016-09-14
• [Presentation] 大マゼラン雲におけるスーパージャイアントシェルLMC4内部のHII領域N55のALMAによる高分解能観測 (2016)
  • Author(s): 高田勝太, 原田遼平, 徳田一起, 森岡祐貴, 本間愛彩, 西合一矢, 大西利和 (大阪府立大学), 河村晶 子, Erik Muller, Naslim Neelamkodan (NAOJ), Remy Indebetouw (Univ. of Virginia; NRAO), Margaret Mexiner (STScI), Marta Sewilo (Johns Hopkins Univ.), 西村淳, 福井康雄 (名古屋 大学)
  • Organizer: 日本天文学会2016年秋季年会
  • Place of Presentation: 愛媛大学
  • Year and Date: 2016-09-14
• [Presentation] 1.85m電波望遠鏡プロジェクトの開発進捗 (IX) (2016)
  • Author(s): 大西利和, 長谷川豊, 徳田一起, 原田遼平, 森岡祐貴, 高橋諒, 井上将徳, 高田勝太, 本間愛彩, 黒田 麻友, 上田翔汰, 阿部安宏, 木村公洋, 村岡和幸, 前澤裕之, 小川英夫 (大阪府立大学), 西村淳 (名 古屋大学), 土橋一仁, 下井倉ともみ (東京学芸大), 1.85m 鏡グループ
  • Organizer: 日本天文学会2016年秋季年会
  • Place of Presentation: 愛媛大学
  • Year and Date: 2016-09-14
• [Presentation] 大マゼラン雲における孤立した大質量原始星に付随する分子ガス観測(3) (2016)
  • Author(s): 原田遼平, 大西利和, 徳田一起, 森岡祐貴, 高田勝太, 本間愛彩, 西合一矢 (大阪府立大学), 河村晶 子, Erik Muller (NAOJ), 福井康雄 (名古屋大学), Annie Hughes, Jean-Philippe Bernard(IRAP), 等
  • Organizer: 日本天文学会2016年秋季年会
  • Place of Presentation: 愛媛大学
  • Year and Date: 2016-09-14
• [Presentation] Physical properties and evolution of Giant Molecular Clouds in the Mag- ellanicClouds (2016)
  • Author(s): T. Onishi
  • Organizer: Star Formation in Different Environments
  • Place of Presentation: Quy Nhon, Viet Nam
  • Year and Date: 2016-07-25
  • Int'l Joint Research / Invited
• [Presentation] ALMA を用いた大マゼラン雲における分子雲高分解能観測 2 : 銀河系内 天体との比較 (2016)
  • Author(s): 徳田一起, 原田遼平, 森岡祐貴, 切通僚介, 高田勝太, 本間愛彩, 西合一矢, 大西利和 (大阪府立大 学), 西村淳, 河村晶子 (NAOJ), Omnarayani Nayak, Margaret Meixner (Jons Hopkins), Remy Indebetouw (NRAO), 福井康雄 (名古屋大学), 他
  • Organizer: 日本天文学会2016年春季年会
  • Place of Presentation: 首都大学東京 南大沢キャンパス
  • Year and Date: 2016-03-14
• [Presentation] High-mass star formation in the LMC as seen by ALMA (2015)
  • Author(s): T. Onishi
  • Organizer: East Asian ALMA Science Workshop 2015
  • Place of Presentation: I-site Namba, Osaka
  • Year and Date: 2015-12-08
  • Int'l Joint Research
• [Presentation] 巨大分子雲における大質量形成 (2015)
  • Author(s): 大西利和
  • Organizer: FUGIN Workshop 2015
  • Place of Presentation: 国立天文台三鷹
  • Year and Date: 2015-11-02
• [Presentation] New Vision of the Universe Explored by State-of-the-Art Radio Telescopes (2015)
  • Author(s): T. Onishi
  • Organizer: OPU the 9th NanoSquare Workshop
  • Place of Presentation: Osaka Prefecture University, Japan
  • Year and Date: 2015-10-30
  • Int'l Joint Research
• [Presentation] Star Formation in the LMC: Tracing an Evolution from Molecular Clouds to High-Mass Stars (2015)
  • Author(s): T. Onishi
  • Organizer: Feedback in the Magellanic Clouds
  • Place of Presentation: Space Telescope Science Institute, USA
  • Year and Date: 2015-10-05
  • Int'l Joint Research
• [Presentation] 大阪府立大学 1.85m 電波望遠鏡による銀河系内分子雲の広域観測:2014 年度進捗 (2015)
  • Author(s): 徳田一起, 原田僚平, 切通僚介, 松本貴雄, 森岡祐貴, 長谷川豊, 木村公洋, 村岡和幸, 前澤裕之, 大 西利和, 小川英夫 (大阪府立大学), 秦野義子, 下井倉ともみ, 土橋一仁 (東京学芸大学), 西村淳 (NAOJ), 立原研悟, 福井康雄 (名古屋大学), 1.85m 鏡グループ
  • Organizer: 日本天文学会2015年秋季年会
  • Place of Presentation: 甲南大学（兵庫県）
  • Year and Date: 2015-09-09
• [Presentation] Physical properties and evolution of GMCs in the Galaxy and the Magellanic Clouds (2015)
  • Author(s): T. Onishi
  • Organizer: IAUS 316: Formation, Evolution, and Survival of Massive Star Clusters"
  • Place of Presentation: Hawaii Convention Center, Hawaii, USA
  • Year and Date: 2015-08-11
  • Int'l Joint Research / Invited
• [Presentation] Star Formation in the Large Magellanic Cloud: Tracing an Evolution of Giant Molecular Clouds (2015)
  • Author(s): T. Onishi
  • Organizer: NRO-ALMA Science/Development Workshop 2015
  • Place of Presentation: Nobeyama Radio Observatory, Japan
  • Year and Date: 2015-07-28
  • Int'l Joint Research
• [Presentation] Star Formation in the Large Magellanic Cloud As Seen by ALMA: Tracing an Evolution from Molecular Clouds to high-mass stars (2015)
  • Author(s): T. Onishi
  • Organizer: Star Formation 2015: From Clouds to Cores
  • Place of Presentation: National Astronomical Observatory of Japan, Japan
  • Year and Date: 2015-06-29
  • Int'l Joint Research
• [Presentation] Star Formation in the Large Magellanic Cloud: Tracing an Evolution of Giant Molecular Clouds (2015)
  • Author(s): T. Onishi
  • Organizer: Dissecting Galaxies Near & Far, ESO Workshop
  • Place of Presentation: ESO, Santiago, Chile
  • Year and Date: 2015-03-23 – 2015-03-27
  • Invited
• [Presentation] 電波分野の現状と将来計画 (2015)
  • Author(s): 大西利和
  • Organizer: 第14回(2014年度)高宇連研究会
  • Place of Presentation: 広島大学
  • Year and Date: 2015-03-09 – 2015-03-11
  • Invited
• [Presentation] 1.85m telescope: Extensive Surveys in J=2-1 CO lines (2014)
  • Author(s): T. Onishi
  • Organizer: 15th Workshop on Submillimeter-Wave Receiver Technologies in Eastern Asia
  • Place of Presentation: アクアヴィラ伊勢志摩 (三重県志摩市)
  • Year and Date: 2014-12-15 – 2014-12-17
  • Invited
• [Presentation] ALMA Observations of a high-density Core in Taurus: Dynamical gas interaction at the possible site of a multiple star formation (2014)
  • Author(s): T. Onishi
  • Organizer: Revolution in Astronomy with ALMA - the 3rd year -
  • Place of Presentation: Tokyo International Forum, Tokyo, Japan
  • Year and Date: 2014-12-08 – 2014-12-11
• [Presentation] Star Formation in the Large Magellanic Cloud: Tracing an Evolution of Giant Molecular Clouds (2014)
  • Author(s): T. Onishi
  • Organizer: Star Formation Across Space and Time
  • Place of Presentation: ESA-ESTEC, Noordwijk, Netherlands
  • Year and Date: 2014-11-11 – 2014-11-14
  • Invited
• [Presentation] 巨大分子雲から星形成へ：広域分子雲探査とALMAを繋ぐ (2014)
  • Author(s): 大西利和
  • Organizer: 惑星から大質量星の形成までを俯瞰する
  • Place of Presentation: 名古屋大学ES総合館
  • Year and Date: 2014-10-01 – 2014-10-02
  • Invited
• [Presentation] 星間水素の高精度な定量による天文学の展開 (2014)
  • Author(s): 大西利和
  • Organizer: 日本天文学会2014年秋期年会
  • Place of Presentation: 山形大学
  • Year and Date: 2014-09-11 – 2014-09-13
  • Invited