A numerical study of circumstellar structures around binary protostars with adaptive mesh refinement

• Project/Area Number: 17K05394
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Astronomy
• Research Institution: Hosei University
• Principal Investigator: Matsumoto Tomoaki 法政大学, 人間環境学部, 教授 (60308004)
• Project Period (FY): 2017-04-01 – 2020-03-31
• Project Status: Completed (Fiscal Year 2019)
• Budget Amount: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000); Fiscal Year 2019: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000); Fiscal Year 2018: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000); Fiscal Year 2017: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
• Keywords: 星形成 / 連星系 / 原始星 / 星周円盤 / 周連星円盤 / 数値シミュレーション / MHD / AMR / 原始連星 / アウトフロー / 数値計算法 / 理論天文学

Outline of Final Research Achievements

We studied the gas structure around the protobinary stars by using numerical simulations with the AMR method to locally resolve the periphery of binary stars. In this study, we investigated two models, the fluid model, and the MHD model. The MHD model reproduces the spiral arms extending from each disk and asymmetric structure in the circumstellar disk. The newly developed Boris-HLLD method allows us to compute the MHD model in a feasible time. The magnetic field causes relatively a slow outflow from the circumstellar disk and relatively fast outflows from the two circumstellar disks. Recent ALMA observations have also discovered these structures.

Academic Significance and Societal Importance of the Research Achievements

本研究は、AMRという高度なシミュレーション技術を用いることにより、原始連星の周囲の詳細な構造をこれまでにない高い解像度で再現する。このシミュレーション結果と最近ALMAの観測結果を比較することにより、原始連星のガスやダストの構造の力学過程を理解することができる。ALMAは国際プロジェクトで建設・運用している大規模な電波望遠鏡であり、これらの観測の物理的な解釈に貢献することは重要である。

Research Products

• [Int'l Joint Research] IAS/University of Maryland/University of Virginia(米国)
• [Int'l Joint Research] ASIAA(その他の国・地域（台湾）)
• [Int'l Joint Research] KASI/慶熙大学校(韓国)
• [Int'l Joint Research] パリ＝サクレ大学(フランス)
• [Int'l Joint Research] Princeton University(米国)
• [Int'l Joint Research] European Southern Observatory(ドイツ)
• [Int'l Joint Research] ASIAA/National Taiwan University(台湾)
• [Int'l Joint Research] East Asian Observatory(米国)
• [Int'l Joint Research] Institute of Physics and CASA(ポーランド)
• [Journal Article] Disk Structure around the Class I Protostar L1489 IRS Revealed by ALMA: A Warped-disk System (2020)
  • Author(s): Sai, Jinshi; Ohashi, Nagayoshi; Saigo, Kazuya; Matsumoto, Tomoaki; Aso, Yusuke; Takakuwa, Shigehisa; Aikawa, Yuri; Kurose, Ippei; Yen, Hsi-Wei; Tomisaka, Kohji; Tomida, Kengo; Machida, Masahiro N.
  • Journal Title: The Astrophysical Journal Volume: 893 Issue: 1 Pages: 51-51
  • DOI: 10.3847/1538-4357/ab8065
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Distortion of Magnetic Fields in BHR 71 (2020)
  • Author(s): Kandori Ryo、Tamura Motohide、Saito Masao、Tomisaka Kohji、Matsumoto Tomoaki、Tazaki Ryo、Nagata Tetsuya、Kusakabe Nobuhiko、Nakajima Yasushi、Kwon Jungmi、Nagayama Takahiro、Tatematsu Ken’ichi
  • Journal Title: The Astrophysical Journal Volume: 892 Issue: 2 Pages: 128-134
  • DOI: 10.3847/1538-4357/ab7b68
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] The Birth of a Massive First-star Binary (2020)
  • Author(s): Sugimura Kazuyuki、Matsumoto Tomoaki、Hosokawa Takashi、Hirano Shingo、Omukai Kazuyuki
  • Journal Title: The Astrophysical Journal Volume: 892 Issue: 1 Pages: L14-L14
  • DOI: 10.3847/2041-8213/ab7d37
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Distortion of Magnetic Fields in Barnard 335 (2020)
  • Author(s): Kandori, Ryo; Saito, Masao; Tamura, Motohide; Tomisaka, Kohji; Matsumoto, Tomoaki; Tazaki, Ryo; Nagata, Tetsuya; Kusakabe, Nobuhiko; Nakajima, Yasushi; Kwon, Jungmi; Nagayama, Takahiro; Tatematsu, Ken'ichi
  • Journal Title: Astrophysical Journal Volume: 891 Issue: 1 Pages: 55-55
  • DOI: 10.3847/1538-4357/ab6f07
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Distortion of Magnetic Fields in the Dense Core CB81 (L1774, Pipe 42) in the Pipe Nebula (2020)
  • Author(s): Kandori, Ryo; Tamura, Motohide; Saito, Masao; Tomisaka, Kohji; Matsumoto, Tomoaki; Tazaki, Ryo; Nagata, Tetsuya; Kusakabe, Nobuhiko; Nakajima, Yasushi; Kwon, Jungmi; Nagayama, Takahiro; Tatematsu, Ken'ichi
  • Journal Title: Astrophysical Journal Volume: 890 Issue: 1 Pages: 14-14
  • DOI: 10.3847/1538-4357/ab67c5
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Distortion of Magnetic Fields in a Starless Core. VI. Application of Flux Freezing Model and Core Formation of FeSt 1─457 (2020)
  • Author(s): Kandori, Ryo; Tomisaka, Kohji; Saito, Masao; Tamura, Motohide; Matsumoto, Tomoaki; Tazaki, Ryo; Nagata, Tetsuya; Kusakabe, Nobuhiko; Nakajima, Yasushi; Kwon, Jungmi; Nagayama, Takahiro; Tatematsu, Ken'ichi
  • Journal Title: Astrophysical Journal Volume: 888 Issue: 2 Pages: 120-120
  • DOI: 10.3847/1538-4357/ab6081
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Distortion of magnetic fields in Barnard 68 (2019)
  • Author(s): Kandori Ryo、Tamura Motohide、Saito Masao、Tomisaka Kohji、Matsumoto Tomoaki、Kusakabe Nobuhiko、Kwon Jungmi、Nagayama Takahiro、Nagata Tetsuya、Tazaki Ryo、Tatematsu Ken’ichi
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 72 Issue: 1 Pages: 8-8
  • DOI: 10.1093/pasj/psz127
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] A centrally concentrated sub-solar-mass starless core in the Taurus L1495 filamentary complex (2019)
  • Author(s): Tokuda Kazuki、Tachihara Kengo、Saigo Kazuya、Andre Phillipe、Miyamoto Yosuke、Zahorecz Sarolta、Inutsuka Shu-ichiro、Matsumoto Tomoaki、Takashima Tatsuyuki、Machida Masahiro N、Tomida Kengo、Taniguchi Kotomi、Fukui Yasuo、Kawamura Akiko、Tatematsu Ken’ichi、Kandori Ryo、Onishi Toshikazu
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 71 Issue: 4 Pages: 73-73
  • DOI: 10.1093/pasj/psz051
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] A Dynamical Model of the Heliosphere with the Adaptive Mesh Refinement (2019)
  • Author(s): Tomoaki Matsumoto, Daikou Shiota, Ryuho Kataoka, Hiroko Miyahara and Shoko Miyake
  • Journal Title: J. Phys.: Conf. Ser. 1225 012008 Volume: - Issue: 1 Pages: 012008-012008
  • DOI: 10.1088/1742-6596/1225/1/012008
  • Peer Reviewed / Open Access
• [Journal Article] A New HLLD Riemann Solver with Boris Correction for Reducing Alfven Speed (2019)
  • Author(s): Matsumoto, Tomoaki; Miyoshi, Takahiro; Takasao, Shinsuke
  • Journal Title: The Astrophysical Journal Volume: 874 Issue: 1 Pages: 37-37
  • DOI: 10.3847/1538-4357/ab05cb
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Structure of a Protobinary System: An Asymmetric Circumbinary Disk and Spiral Arms (2019)
  • Author(s): Matsumoto Tomoaki、Saigo Kazuya、Takakuwa Shigehisa
  • Journal Title: The Astrophysical Journal Volume: 871 Issue: 1 Pages: 36-36
  • DOI: 10.3847/1538-4357/aaf6ab
  • Peer Reviewed
• [Journal Article] Distortion of Magnetic Fields in a Starless Core. V. Near-infrared and Submillimeter Polarization in FeSt 1-457 (2018)
  • Author(s): Kandori Ryo、Nagata Tetsuya、Tazaki Ryo、Tamura Motohide、Saito Masao、Tomisaka Kohji、Matsumoto Tomoaki、Kusakabe Nobuhiko、Nakajima Yasushi、Kwon Jungmi、Nagayama Takahiro、Tatematsu Ken’ichi
  • Journal Title: The Astrophysical Journal Volume: 868 Issue: 2 Pages: 94-94
  • DOI: 10.3847/1538-4357/aae888
  • NAID: 120006784406
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Warm CO Gas Generated by Possible Turbulent Shocks in a Low-mass Star-forming Dense Core in Taurus (2018)
  • Author(s): Tokuda, Kazuki; Onishi, Toshikazu; Saigo, Kazuya; Matsumoto, Tomoaki; Inoue, Tsuyoshi; Inutsuka, Shu-ichiro; Fukui, Yasuo; Machida, Masahiro N.; Tomida, Kengo; Hosokawa, Takashi; Kawamura, Akiko; Tachihara, Kengo
  • Journal Title: The Astrophysical Journal Volume: 862 Issue: 1 Pages: 8-22
  • DOI: 10.3847/1538-4357/aac898
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] A Statistical Study of Massive Cluster-forming Clumps (2018)
  • Author(s): Shimoikura Tomomi、Dobashi Kazuhito、Nakamura Fumitaka、Matsumoto Tomoaki、Hirota Tomoya
  • Journal Title: The Astrophysical Journal Volume: 855 Issue: 1 Pages: 45-45
  • DOI: 10.3847/1538-4357/aaaccd
  • Peer Reviewed / Open Access
• [Journal Article] Circumstellar disks and outflows in turbulent molecular cloud cores: possible formation mechanism for misaligned systems (2017)
  • Author(s): Tomoaki Matsumoto; Masahiro, N. Machida; Shu-Ichiro Inutsuka
  • Journal Title: The Astrophysical Journal Volume: 839(1) Issue: 1 Pages: 69-69
  • DOI: 10.3847/1538-4357/aa6a1c
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Theoretical Models of Protostellar Binary and Multiple Systems with AMR Simulations (2017)
  • Author(s): Matsumoto Tomoaki、Tokuda Kazuki、Onishi Toshikazu、Inutsuka Shu-ichiro、Saigo Kazuya、Takakuwa Shigehisa
  • Journal Title: Journal of Physics: Conference Series Volume: 837 Pages: 012009-012009
  • DOI: 10.1088/1742-6596/837/1/012009
  • Peer Reviewed
• [Journal Article] Fates of the dense cores formed by fragmentation of filaments: do they fragment again or not? (2017)
  • Author(s): Sugimura Kazuyuki、Mizuno Yurina、Matsumoto Tomoaki、Omukai Kazuyuki
  • Journal Title: Monthly Notices of the Royal Astronomical Society Volume: 469 Issue: 4 Pages: 4022-4033
  • DOI: 10.1093/mnras/stx1129
  • Peer Reviewed
• [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] 1000 au exterior arcs connected to the protoplanetary disk around HL Tauri (2017)
  • Author(s): Yen Hsi-Wei、Takakuwa Shigehisa、Chu You-Hua、Hirano Naomi、Ho Paul T. P.、Kanagawa Kazuhiro D.、Lee Chin-Fei、Liu Hauyu Baobab、Liu Sheng-Yuan、Matsumoto Tomoaki、Matsushita Satoki、Muto Takayuki、Saigo Kazuya、Tang Ya-Wen、Trejo Alfonso、Wu Chun-Ju
  • Journal Title: The Astrophysical Journal Volume: 608 Pages: A134-A134
  • DOI: 10.1051/0004-6361/201730894
  • Peer Reviewed / Int'l Joint Research
• [Presentation] 周連星円盤における磁場の効果：MRIと三つのアウトフロー (2020)
  • Author(s): 松本倫明
  • Organizer: 日本天文学会2020年春季年会
• [Presentation] Boris-HLLD: a new MHD Riemann solver for reducing Alfven speed (2019)
  • Author(s): Tomoaki Matsumoto
  • Organizer: ASTRONUM 2019
  • Int'l Joint Research / Invited
• [Presentation] Circumstellar Disks and Outflows in Turbulent Molecular Cloud Cores: Possible Formation Mechanism for Misaligned Systems (2018)
  • Author(s): Tomoaki Matsumoto
  • Organizer: IAU 30 GA, FM4
  • Int'l Joint Research
• [Presentation] 角運動量の非定常な降着によるワープ円盤の形成 (2017)
  • Author(s): 松本倫明(法政大学), 崔仁士(東京大学), 西合一矢, 大橋永芳(国立天文台)
  • Organizer: 日本天文学会2017年秋季年会