Theoretical studies on formation of extrasolar planetary systems through numerical simulations

2008 Fiscal Year Final Research Report

• Project/Area Number: 16077202
• Research Category: Grant-in-Aid for Scientific Research on Priority Areas
• Allocation Type: Single-year Grants
• Review Section: Science and Engineering
• Research Institution: Tokyo Institute of Technology
• Principal Investigator: IDA Shigeru Tokyo Institute of Technology, 大学院・理工学研究科, 教授 (60211736)
• Co-Investigator(Kenkyū-buntansha): TANAKA Hidekazu 北海道大学, 低温科学研究所, 准教授 (00282814) ; INUTSUKA Shuichiro 京都大学, 大学院・理学研究科, 准教授 (80270453) ; KOKUBO Eiichiro 国立天文台, 理論天文学研究系, 准教授 (90332163)
• Project Period (FY): 2004 – 2008
• Keywords: 系外惑星 / 原始惑星系円盤 / ダスト / 乱流 / 惑星形成 / 数値シミュレーション

Research Abstract

惑星形成は多様な物理が絡む多段階非線形過程である。各過程に対して大規模シミュレーションなどを通して基礎過程の徹底理解の上で、半経験的惑星形成モデルを構築し、観測データとの比較のもとに理論モデルの不定パラメータを較正するという手法の基本的な枠組みを確立した。系外惑星の質量・軌道長半径の分布の予測を世界で唯一可能にし、現在進行中および将来の観測計画立案に重要な役割を担うようになった。

Research Products

• [Journal Article] Modification of angular velocity by inhomogeneous magnetorotational instability growth in protoplanetary disks (2009)
  • Author(s): Kato, M. T., Nakamura, K., Tandokoro, R., Fujimoto, M., & Ida, S.
  • Journal Title: Astrophys. J. 691 Pages: 1697-1706
  • Peer Reviewed
• [Journal Article] Orbital evolution of a particle interacting with a single planet in a protoplanetary disk (2009)
  • Author(s): Muto, T., & Inutsuka, S.
  • Journal Title: Astrophys. J. 695 Pages: 1132-1150
  • Peer Reviewed
• [Journal Article] Disk winds driven by magnetorotational instability and dispersal of protoplanetary disks (2009)
  • Author(s): Suzuki, T., & Inutsuka, S.
  • Journal Title: Astrophys. J. 691 Pages: L49-L54
  • Peer Reviewed
• [Journal Article] Direct simulations of particle acceleration in a fluctuating electromagnetic field across a shock (2009)
  • Author(s): Muranishi, T., & Inutsuka, S.
  • Journal Title: Astrophys. J. 691 Pages: L24-L26
  • Peer Reviewed
• [Journal Article] On the various origins of close-in extrasolar planets (2009)
  • Author(s): Marchi, S., Ortolani, S., Nagasawa, M., & Ida, S.
  • Journal Title: Mon. Not. R. Astron. Soc. 394 Pages: L93-L96
  • Peer Reviewed
• [Journal Article] Accretion and destruction of planetesimals in turbulent disks (2008)
  • Author(s): Ida, S., Guillot, T., & Morbidelli, A.
  • Journal Title: Astrophys. J. 686 Pages: 1292-1301
  • Peer Reviewed
• [Journal Article] Toward a deterministic model of planetary formation. V. (2008)
  • Author(s): Ida, S. & Lin, D. N. C.
  • Journal Title: Astrophys. J. 685 Pages: 584-595
  • Peer Reviewed
• [Journal Article] Toward a deterministic model of planetary formation. IV. (2008)
  • Author(s): Ida, S. & Lin, D. N. C.
  • Journal Title: Astrophys. J. 673 Pages: 487-501
  • Peer Reviewed
• [Journal Article] Infall of planetesimals onto growing giant planets : Onset of runaway gas accretion and metallicity of their gas envelopes (2008)
  • Author(s): Shiraishi, M. & Ida, S.
  • Journal Title: Astrophys. J. 684 Pages: 1416-1426
  • Peer Reviewed
• [Journal Article] Numerical simulation of density evolution of dust aggregates in protoplanetary disks. I. Head-on collisions (2008)
  • Author(s): Suyama, T., Wada, K., & Tanaka, H.
  • Journal Title: Astrophys. J. 684 Pages: 1310-1322
  • Peer Reviewed
• [Journal Article] Numerical simulation of dust aggregate collisions. II. Compression and disruption of three-dimensional aggregates in head-on collisions (2008)
  • Author(s): Wada, K., Tanaka, H., 他3名
  • Journal Title: Astrophys. J. 677 Pages: 1296-1308
  • Peer Reviewed
• [Journal Article] Angular momentum accretion onto a gas giant planet (2008)
  • Author(s): Machida, M. N., Kokubo, E., Inutsuka, S., & Matsumoto, T.
  • Journal Title: Astrophys. J. 685 Pages: 1220-1236
  • Peer Reviewed
• [Journal Article] Formation of hot planets by a combination of planet scattering, tidal circularization, and the Kozai mechanism (2008)
  • Author(s): Nagasawa, M., Ida, S., & Bessho, T.
  • Journal Title: Astrophys. J. 678 Pages: 498-508
  • Peer Reviewed
• [Journal Article] Accretion of Terrestrial Planets from Oligarchs in a Turbulent Disk (2007)
  • Author(s): Ogihara, K., Ida, S., Morbidelli, A.
  • Journal Title: Icarus 188 Pages: 522-534
  • Peer Reviewed
• [Journal Article] Obliquity evolution of extrasolar terrestrial planets (2007)
  • Author(s): Atobe, K., Ida, S.
  • Journal Title: Icarus 188 Pages: 1-17
  • Peer Reviewed
• [Journal Article] On the Separation/Period Gap in the Distribution of Extrasolar Planets around Stars with Masses M > 1.2 M_sun (2007)
  • Author(s): Burkert, A. & Ida, S.
  • Journal Title: Astrophys. J. 660 Pages: 845-849
  • Peer Reviewed
• [Journal Article] Numerical simulation of dust aggregate collisions. I. Compression and disruption of two-dimensional aggregate (2007)
  • Author(s): Wada, K., Tanaka, H., 他3名
  • Journal Title: Astrophys. J. 661 Pages: 320-333
  • Peer Reviewed
• [Journal Article] Magnetic fields and rotations of protostars (2007)
  • Author(s): Machida, M. N., Inutsuka, S., & Matsumoto, T.
  • Journal Title: Astrophys. J. 670 Pages: 1198-1213
  • Peer Reviewed
• [Journal Article] N-body simulation of planetesimal formation through gravitational instability of a dust layer (2007)
  • Author(s): Michikoshi, S., Inutsuka, S., Kokubo, E., Furuya, I.
  • Journal Title: Astrophys. J. 657 Pages: 521-532
  • Peer Reviewed
• [Journal Article] Formation of terrestrial planets from protoplanets. II. Statistics of planetary spin (2007)
  • Author(s): Kokubo, E. & Ida, S.
  • Journal Title: Astrophys. J. 671 Pages: 2082-2090
  • Peer Reviewed
• [Journal Article] Orbital evolution and accretion of protoplanets tidally interacting with a gas disk. II (2006)
  • Author(s): Daisaka, K. J., Tanaka, H. & Ida, S.
  • Journal Title: Icarus 185 Pages: 492-507
  • Peer Reviewed
• [Journal Article] Outflows driven by giant protoplanets (2006)
  • Author(s): Machida, M. N., Inutsuka, S. & Matsumoto, T.
  • Journal Title: Astrophys. J. 649 Pages: L129-L132
  • Peer Reviewed
• [Journal Article] (2006)
  • Author(s): Machida, M. N., Inutsuka, S., & Matsumoto, T.
  • Journal Title: Astrophys J. 647 Pages: L151-L154
  • Peer Reviewed
• [Journal Article] A two-fluid analysis of the Kelvin-Helmholtz instability in the dusty layer of a protoplanetary disk: A possible path toward planetesimal formation through gravitational Instability (2006)
  • Author(s): Michikoshi, S. & Inutsuka, S.
  • Journal Title: Astrophys. J. 641 Pages: 1131-1147
  • Peer Reviewed
• [Journal Article] Formation of terrestrial planets from protoplanets. I. Statistics of basic dynamical properties (2006)
  • Author(s): Kokubo, E., J. Kominami & Ida, S.
  • Journal Title: Astrophys. J. 642 Pages: 1131-1139
  • Peer Reviewed
• [Journal Article] Towards a deterministic model of planetary formation. III (2005)
  • Author(s): Ida, S., & Lin, D. N. C.
  • Journal Title: Astrophys. J. 626 Pages: 1045-1060
  • Peer Reviewed
• [Journal Article] Orbital Evolution and Accretion of Protoplanets Tidally Interacting with a Gas Disk. I (2005)
  • Author(s): Kominami, J., Tanaka, H. & Ida, S.
  • Journal Title: Icarus 178 Pages: 540-552
  • Peer Reviewed
• [Journal Article] The N2K consortium. II. A transiting hot Saturn around HD 149026 with a large dense core (2005)
  • Author(s): Sato, B., Fischer, D., Henry, G., Laughlin, G., Butler, P., Marcy, G., Vogt, S., Bodenheimer, P., Ida, S., 他12名
  • Journal Title: Astrophys. J. 633 Pages: 465-473
  • Peer Reviewed
• [Journal Article] Dust growth and settling in protoplanetary disks and disk Spectral energy distributions. I (2005)
  • Author(s): Tanaka, H., Himeno, Y. & Ida, S.
  • Journal Title: Astrophys. J. 625 Pages: 414-426
  • Peer Reviewed
• [Journal Article] Self-sustained ionization and vanishing dead zones in protoplanetary disks (2005)
  • Author(s): Inutsuka, S., & Sano, T.
  • Journal Title: Astrophys. J. 628 Pages: L155-L158
  • Peer Reviewed
• [Journal Article] Toward a deterministic model of planetary formation. II (2004)
  • Author(s): Ida, S., & Lin, D. N. C.
  • Journal Title: Astrophys. J. 616 Pages: 567-572
  • Peer Reviewed
• [Journal Article] Toward a deterministic model of planetary formation. I (2004)
  • Author(s): Ida, S., & Lin, D. N. C.
  • Journal Title: Astrophys. J. 604 Pages: 388-413
  • Peer Reviewed
• [Presentation] Formation of Terrestrial Planets from Protoplanets (2009)
  • Author(s): 小久保英一郎
  • Organizer: xoplanets and disks : Their formation and diversity, 2009, The 2nd Subaru International Conference "Exoplanets and Disks : Their Formation and Diversity"
  • Place of Presentation: Hawaii, USA
  • Year and Date: 2009-03-12
• [Presentation] Dust Growth in Protoplanetary Disks (2009)
  • Author(s): 田中秀和
  • Organizer: Exoplanets and disks : Their formation and diversity, 2009, The 2nd Subaru International Conference "Exoplanets and Disks : Their Formation and Diversity"
  • Place of Presentation: Hawaii, USA
  • Year and Date: 2009-03-10
• [Presentation] Formation of short-period terrestrial planets (2009)
  • Author(s): 井田茂
  • Organizer: Exoplanets and disks : Their formation and diversity, 2009, The 2nd Subaru International Conference "Exoplanets and Disks : Their Formation and Diversity"
  • Place of Presentation: Hawaii, USA
  • Year and Date: 2009-03-10
• [Presentation] A Hybrid Scenario for Planet Formation (2009)
  • Author(s): 犬塚修一郎
  • Organizer: Exoplanets and disks : Their formation and diversity, 2009, The 2nd Subaru International Conference "Exoplanets and Disks: Their Formation and Diversity"
  • Place of Presentation: Hawaii, USA
  • Year and Date: 2009-03-09
• [Presentation] Modeling for formation of extrasolar planets (2008)
  • Author(s): 井田茂
  • Organizer: Origin and evolution of planets, 2008, Ascona Conference
  • Place of Presentation: Ascona, Switzerland
  • Year and Date: 2008-07-04
• [Presentation] Migration and M-a distributions of extrasolar planets (2007)
  • Author(s): 井田茂
  • Organizer: IAU symposium 249
  • Place of Presentation: Suzhou, China
  • Year and Date: 2007-10-24
• [Presentation] Planetary formation architectures, theory (2005)
  • Author(s): 井田茂
  • Organizer: From disks to planets
  • Place of Presentation: Pasadena, California, USA
  • Year and Date: 2005-03-10
• [Book] 系外惑星 (2007)
  • Author(s): 井田茂
  • Total Pages: 204
  • Publisher: 東京大学出版会