Probing coevolution of cosmic plasma and dark matter with multi-wavelength data

• Project/Area Number: 25400236
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Astronomy
• Research Institution: Toho University
• Principal Investigator: KITAYAMA Tetsu 東邦大学, 理学部, 教授 (00339201)
• Project Period (FY): 2013-04-01 – 2019-03-31
• Project Status: Completed (Fiscal Year 2018)
• Budget Amount: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000); Fiscal Year 2017: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2016: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2015: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2014: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2013: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
• Keywords: 宇宙論 / 銀河団 / ダークマター / プラズマ / 電波 / Ｘ線 / X線 / ミリ波 / サブミリ波 / ミリ波サブミリ波

Outline of Final Research Achievements

We have explored the link between hot plasma and dark matter in galaxy clusters, based on high-precision observational data taken, e.g., by Atacama Large Millimeter/submillimeter Array (ALMA) and Hitomi (ASTRO-H) X-ray astronomy satellite, as well as state-of-the-art cosmological simulations. The main achievements are that we have accomplished the highest spatial-resolution radio observation of hot plasma, obtained quantitative constraints on the fundamental properties of plasma and dark matter, and shown that the velocity of hot plasma near the center of galaxy clusters is much lower than previously expected.

Academic Significance and Societal Importance of the Research Achievements

本研究により、国際協力のもとで日本が大きな役割を果たして開発された最新鋭の観測装置の能力を、最大限に引き出すことが可能となった。特にALMAに関しては、従来困難視されていた広がった信号の測定がどこまで可能であるかが、本研究によって定量的に明らかになった。また、X線天文衛星ひとみ（ASTRO-H）については、２０１６年４月の運用停止による科学的な損失を大幅に補填し、次期衛星計画に対して有益な情報を提供することができた。

Research Products

• [Int'l Joint Research] Goddard Space Flight Center/Stanford University/Massachusetts Institute of Technology(米国)
• [Int'l Joint Research] University of Waterloo/Saint Mary's University/University of Manitoba(カナダ)
• [Int'l Joint Research] University of Cambridge/University of Durham/University of Southampton(英国)
• [Int'l Joint Research] Laboratoire APC/CEA Saclay/Institut d’Astrophysique de Paris(フランス)
• [Int'l Joint Research] Max Planck Institute(ドイツ)
• [Int'l Joint Research]
• [Int'l Joint Research] NASA, Goddard Space Flight Center/Stanford University/Massachusetts Institute of Technology(米国)
• [Int'l Joint Research] University of Waterloo/Saint Mary's University/University of Manitoba(カナダ)
• [Int'l Joint Research] University of Cambridge/University of Durham/University of Southampton(英国)
• [Int'l Joint Research] Laboratoire APC/CEA Saclay(フランス)
• [Int'l Joint Research] Max Planck Institute(ドイツ)
• [Int'l Joint Research]
• [Int'l Joint Research] NASA/Goddard Space Flight Center/Stanford University/Massachusetts Institute of Technology(米国)
• [Int'l Joint Research] University of Waterloo/Saint Mary’s University/University of Manitoba(カナダ)
• [Int'l Joint Research] Cambridge University/University of Durham(英国)
• [Int'l Joint Research] Institut d'Astrophysique de Paris/IRFU/Service d'Astrophysique(フランス)
• [Int'l Joint Research] Max-Planck-Institut fur Astrophysik(ドイツ)
• [Int'l Joint Research]
• [Journal Article] Constraints on the chemical enrichment history of the Perseus Cluster of galaxies from high-resolution X-ray spectroscopy (2019)
  • Author(s): Simionescu et al. 35名中4番目
  • Journal Title: Monthly Notices of the Royal Astronomical Society Volume: 483 Issue: 2 Pages: 1701-1721
  • DOI: 10.1093/mnras/sty3220
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Hitomi X-ray observation of the pulsar wind nebula G21.5-0.9 (2018)
  • Author(s): Hitomi Collaboration、Aharonian Felix、...、Kohmura Takayoshi...、et al (他191名）
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 70 Issue: 3 Pages: 1-16
  • DOI: 10.1093/pasj/psy027
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Projected alignment of non-sphericities of stellar, gas, and dark matter distributions in galaxy clusters: analysis of the Horizon-AGN simulation (2018)
  • Author(s): Okabe Taizo、Nishimichi Takahiro、Oguri Masamune、Peirani Sebastien、Kitayama Tetsu、Sasaki Shin、Suto Yasushi
  • Journal Title: Monthly Notices of the Royal Astronomical Society Volume: 478 Issue: 1 Pages: 1141-1160
  • DOI: 10.1093/mnras/sty1068
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] A Cool Core Disturbed: Observational Evidence for the Coexistence of Subsonic Sloshing Gas and Stripped Shock-heated Gas around the Core of RX J1347.5-1145 (2018)
  • Author(s): Ueda Shutaro、Kitayama Tetsu、Oguri Masamune、Komatsu Eiichiro、Akahori Takuya、Iono Daisuke、Izumi Takumi、Kawabe Ryohei、Kohno Kotaro、Matsuo Hiroshi、Ota Naomi、Suto Yasushi、Takakuwa Shigehisa、Takizawa Motokazu、Tsutsumi Takahiro、Yoshikawa Kohji
  • Journal Title: The Astrophysical Journal Volume: 866 Issue: 1 Pages: 48-48
  • DOI: 10.3847/1538-4357/aadd9d
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Detection of polarized gamma-ray emission from the Crab nebula with the Hitomi Soft Gamma-ray Detector (2018)
  • Author(s): Hitomi collaboration
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 70 Issue: 6 Pages: 113-113
  • DOI: 10.1093/pasj/psy118
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Hitomi (ASTRO-H) X-ray Astronomy Satellite (2018)
  • Author(s): Tadayuki Takahashi, Yuto Ichinohe (73/270) et al.
  • Journal Title: Journal of Astronomical Telescopes, Instruments, and Systems Volume: 4 Issue: 02 Pages: 021402-021402
  • DOI: 10.1117/1.jatis.4.2.021402
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Atmospheric gas dynamics in the Perseus cluster observed with Hitomi (2018)
  • Author(s): Hitomi Collaboration, Aya Bamba, et al.
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 70 Issue: 2 Pages: 9-9
  • DOI: 10.1093/pasj/psx138
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Measurements of resonant scattering in the Perseus Cluster core with Hitomi SXS (2018)
  • Author(s): Hitomi Collaboration, Aya Bamba, et al.
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 70 Issue: 2 Pages: 10-10
  • DOI: 10.1093/pasj/psx127
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Temperature structure in the Perseus cluster core observed with Hitomi (2018)
  • Author(s): Hitomi Collaboration, Aya Bamba, et al.
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 70 Issue: 2 Pages: 11-11
  • DOI: 10.1093/pasj/psy004
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Atomic data and spectral modeling constraints from high-resolution X-ray observations of the Perseus cluster with Hitomi* (2018)
  • Author(s): Hitomi Collaboration, Aya Bamba
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 70 Issue: 2 Pages: 12-12
  • DOI: 10.1093/pasj/psx156
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Hitomi observation of radio galaxy NGC1275: The first X-ray microcalorimeter spectroscopy of Fe-Kα line emission from an active galactic nucleus (2018)
  • Author(s): Hitomi Collaboration, Aya Bamba, et al.
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 70 Issue: 2 Pages: 13-13
  • DOI: 10.1093/pasj/psx147
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Search for thermal X-ray features from the Crab nebula with the Hitomi soft X-ray spectrometer (2018)
  • Author(s): Hitomi Collaboration, Aya Bamba, et al.
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 70 Issue: 2 Pages: 14-14
  • DOI: 10.1093/pasj/psx072
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Hitomi X-ray studies of giant radio pulses from the Crab pulsar (2018)
  • Author(s): Hitomi Collaboration, Aya Bamba, et al.
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 70 Issue: 2 Pages: 15-15
  • DOI: 10.1093/pasj/psx083
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Hitomi observations of the LMC SNR N 132D: Highly redshifted X-ray emission from iron ejecta (2018)
  • Author(s): Hitomi collaboration, A. Bamba, et al.
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 70 Issue: 2 Pages: 16-16
  • DOI: 10.1093/pasj/psx151
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Glimpse of the highly obscured HMXB IGR J16318-4848 with Hitomi (2018)
  • Author(s): Hitomi Collaboration, A. Bamba et al.
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 70 Issue: 2 Pages: 17-17
  • DOI: 10.1093/pasj/psx154
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Blind Millimeter Line Emitter Search using ALMA Data Toward Gravitational Lensing Clusters (2017)
  • Author(s): Yamaguchi Yuki、Kohno Kotaro、Tamura Yoichi、Oguri Masamune、Ezawa Hajime、Hayatsu Natsuki H.、Kitayama Tetsu、Matsuda Yuichi、Matsuo Hiroshi、Oshima Tai、Ota Naomi、Izumi Takuma、Umehata Hideki
  • Journal Title: The Astrophysical Journal Volume: 845 Issue: 2 Pages: 108-108
  • DOI: 10.3847/1538-4357/aa80e0
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Solar abundance ratios of the iron-peak elements in the Perseus cluster (2017)
  • Author(s): Aharonian, F., Bamba, A. et al.
  • Journal Title: Nature Volume: 551 Issue: 7681 Pages: 478-480
  • DOI: 10.1038/nature24301
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Embedded Spiral Patterns in the Cool Core of the Massive Cluster of Galaxies Abell 1835 (2017)
  • Author(s): Ueda, Shutaro; Kitayama, Tetsu; Dotani, Tadayasu
  • Journal Title: The Astrophysical Journal Volume: 837 Issue: 1 Pages: 34-43
  • DOI: 10.3847/1538-4357/aa5c3e
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] The Sunyaev-Zel'dovich effect at 5″: RX J1347.5-1145 imaged by ALMA (2016)
  • Author(s): T. Kitayama, S. Ueda, S. Takakuwa, T. Tsutsumi, E. Komatsu, T. Akahori, D. Iono, T. Izumi, R. Kawabe, K. Kohno, H. Matsuo, N. Ota, Y. Suto, M. Takizawa, K. Yoshikawa
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 68 Issue: 5 Pages: 88-106
  • DOI: 10.1093/pasj/psw082
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] The quiescent intracluster medium in the core of the Perseus cluster (2016)
  • Author(s): Hitomi Collaboration et al.
  • Journal Title: Nature Volume: 535 Issue: 7610 Pages: 117-121
  • DOI: 10.1038/nature18627
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Evolution and statistics of non-sphericity of dark matter halos from cosmological N-body simulation (2016)
  • Author(s): Suto, Daichi; Kitayama, Tetsu; Nishimichi, Takahiro; Sasaki, Shin; Suto, Yasushi
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 68 Issue: 6
  • DOI: 10.1093/pasj/psw088
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Projected axis ratios of galaxy clusters in the Horizon-AGN simulation: Impact of baryon physics and comparison with observations (2016)
  • Author(s): Suto, Daichi; Peirani, Sebastien; Dubois, Yohan; Kitayama, Tetsu; Nishimichi, Takahiro; Sasaki, Shin; Suto, Yasushi
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 69 Issue: 1
  • DOI: 10.1093/pasj/psw118
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Hitomi Constraints on the 3.5 keV Line in the Perseus Galaxy Cluster (2016)
  • Author(s): Aharonian, F. A., Akamatsu, H, Terada, Y. et al (Hitomi collaboration)
  • Journal Title: The Astrophysical Journal Letters Volume: 837 Issue: 1 Pages: 15-23
  • DOI: 10.3847/2041-8213/aa61fa
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] The ASTRO-H (Hitomi) x-ray astronomy satellite (2016)
  • Author(s): Takahashi, T. et al.
  • Journal Title: Proceedings of the SPIE Volume: 9905 Pages: 990510-11
  • DOI: 10.1117/12.2232379
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Confrontation of top-hat spherical collapse against dark halos from cosmological N-body simulations (2015)
  • Author(s): Suto, D., Kitayama, T., Osato, K., Sasaki, S., Suto, Y.
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 68 Pages: 1417-1417
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Cosmological and astrophysical implications of the Sunyaev-Zel'dovich effect (2014)
  • Author(s): Kitayama, T.
  • Journal Title: Progress of Theoretical and Experimental Physics Volume: 2014 Issue: 6 Pages: 1-24
  • DOI: 10.1093/ptep/ptu055
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] ASTRO-H White Paper - Clusters of Galaxies and Related Science (2014)
  • Author(s): Kitayama, T., et al.
  • Journal Title: eprint arXiv Volume: 1412.1176 Pages: 1-92
  • Open Access
• [Journal Article] The ASTRO-H X-ray astronomy satellite (2014)
  • Author(s): T. Takahashi, S. Konami (他共著者246人)
  • Journal Title: Proceedings of the SPIE Volume: 9144 Pages: 25-48
  • DOI: 10.1117/12.2055681
  • Peer Reviewed / Open Access
• [Journal Article] Investigating the Hard X-ray Emission from the Hottest Abell Cluster A2163 with Suzaku (2014)
  • Author(s): N. Ota, K. Nagayoshi, G. W. Pratt, T. Kitayama, T. Oshima, & T. H. Reiprich
  • Journal Title: Astronomy & Astrophysics Volume: 562 Pages: A60-A60
  • DOI: 10.1051/0004-6361/201322878
  • Peer Reviewed
• [Journal Article] Validity of Hydrostatic Equilibrium in Galaxy Clusters from Cosmological Hydrodynamical Simulations (2013)
  • Author(s): Suto, Kawahara, et al.
  • Journal Title: Astrophysical Journal Volume: 767 Issue: 1 Pages: 79-79
  • DOI: 10.1088/0004-637x/767/1/79
  • Peer Reviewed
• [Presentation] 銀河団RXJ1347-1145 の数値シミュレーションI (2018)
  • Author(s): 石崎滉也, 赤堀卓也, 北山哲, 吉川耕司, SZ-ALMA チーム
  • Organizer: 日本天文学会2018年春季年会
• [Presentation] 銀河団と中心銀河の楕円率と主軸の向きの相関 (2018)
  • Author(s): 岡部泰三、大栗真宗、須藤靖、西道啓博、北山哲、佐々木伸、Sebastien Peirani
  • Organizer: 日本天文学会2018年春季年会
• [Presentation] ALMA 3mm帯データを用いた無バイアスのミリ波輝線銀河探査 (2018)
  • Author(s): 李建鋒, 河野孝太郎, 廿日出文洋, 山口裕貴, 山下祐依, 早津夏己, 大栗真宗, 梅畑豪紀, 北山哲, 上田周太朗, 田村陽一, 松田有一, 赤堀卓也
  • Organizer: 日本天文学会2018年春季年会
• [Presentation] 重力レンズ銀河団のALMAデータを用いたCO光度関数の制限 (2017)
  • Author(s): 山口裕貴, 河野孝太郎, 田村陽一, 大栗真宗, 泉拓磨, 北山哲, 江澤元, 大島泰, 松尾宏, 太田直美
  • Organizer: 日本天文学会2017年春季年会
  • Place of Presentation: 九州大学（福岡県福岡市）
  • Year and Date: 2017-03-17
• [Presentation] ＡＬＭＡによるスニヤエフ・ゼルドビッチ効果の初観測 (2017)
  • Author(s): 北山哲, 上田周太朗, 高桑繁久, 堤貴弘, 小松英一郎, 赤堀卓也, 伊王野大介, 泉拓磨, 川邊良平, 河野孝太郎, 松尾宏, 大栗真宗, 太田直美, 須藤靖, 滝沢元和, 吉川耕司
  • Organizer: 日本天文学会2017年春季年会
  • Place of Presentation: 九州大学（福岡県福岡市）
  • Year and Date: 2017-03-16
• [Presentation] 「ひとみ」によるペルセウス座銀河団のガス速度測定: (1) 速度構造 (2017)
  • Author(s): 一戸悠人、 飯塚亮、井上翔太、上田周太朗、太田直美、北山哲、佐藤浩介、田中桂悟、 田村隆幸、 辻本匡弘、藤本龍一、前田良知、および「ひとみ」コラボレーション
  • Organizer: 日本天文学会2017年春季年会
  • Place of Presentation: 九州大学（福岡県福岡市）
  • Year and Date: 2017-03-15
• [Presentation] 「ひとみ」によるペルセウス座銀河団のガス速度測定: (2) 輝線の非ガウス性とイオン温度への制限 (2017)
  • Author(s): 上田周太朗、飯塚亮、一戸悠人、井上翔太、太田直美、北山哲、佐藤浩介、田中桂悟、田村隆幸、辻本匡弘、藤本龍一、前田良知、 および「ひとみ」コラボレーション
  • Organizer: 日本天文学会2017年春季年会
  • Place of Presentation: 九州大学（福岡県福岡市）
  • Year and Date: 2017-03-15
• [Presentation] 「ひとみ」によるペルセウス座銀河団の高温ガスの速度場の測定 (2017)
  • Author(s): 上田周太朗, 一戸悠人, 藤本龍一, 井上翔太, Caroline Kilbourne, 北山哲, Maxim Markevitch, Brian McNamara, 太田直美, Scott Porter, 田村隆幸, 田中桂悟, Norbert Werner
  • Organizer: 日本天文学会２０１７年秋季年会
• [Presentation] 銀河団のダークマターとバリオン分布の楕円率と主軸の向きの相関 (2017)
  • Author(s): 岡部泰三、大栗真宗、須藤靖、西道啓博、北山哲、佐々木伸、Sebastien Peirani
  • Organizer: 日本天文学会２０１７年秋季年会
• [Presentation] Phoenix 銀河団におけるALMA 3mm帯データを使ったミリ波輝線銀河探査 (2017)
  • Author(s): 李建鋒, 河野孝太郎, 廿日出文洋, 山口裕貴, 山下祐依, 早津夏己, 大栗真宗, 梅畑豪紀, 北山哲, 上田周太朗, 田村陽一, 松田有一
  • Organizer: 日本天文学会２０１７年秋季年会
• [Presentation] ダークマターの速度分散の成長とハローの自己相似的進化 (2015)
  • Author(s): 須藤大地
  • Organizer: 日本天文学会２０１５年秋季年会
  • Place of Presentation: 甲南大学岡本キャンパス（兵庫県神戸市）
  • Year and Date: 2015-09-09
• [Presentation] 球対称崩壊・楕円体崩壊モデルの再考 (2015)
  • Author(s): 須藤大地、北山哲、佐々木伸、須藤靖
  • Organizer: 日本天文学会2015年春季年会
  • Place of Presentation: 大阪大学豊中キャンパス(大阪府豊中市)
  • Year and Date: 2015-03-19
• [Presentation] X線およびSZ効果観測を用いた銀河団質量推定の信頼性
  • Author(s): 須藤大地, 北山哲, 佐々木伸, 須藤靖, Renyue Cen, Klaus Dolag
  • Organizer: 日本天文学会２０１３年秋季年会
  • Place of Presentation: 東北大学(宮城県仙台市)
• [Presentation] X線宇宙物理
  • Author(s): 北山哲
  • Organizer: 第２６回理論天文学宇宙物理学懇談会シンポジウム
  • Place of Presentation: 東京大学柏キャンパス（千葉県柏市）
  • Invited