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N-body simulations of planet formation including disk evolution and atmospheric calculation

Research Project

Project/Area Number 16H07415
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeSingle-year Grants
Research Field Solid earth and planetary physics
Research InstitutionNational Astronomical Observatory of Japan

Principal Investigator

Ogihara Masahiro  国立天文台, 理論研究部, 特任助教 (90781980)

Project Period (FY) 2016-08-26 – 2018-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2017: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
KeywordsN体計算 / 原始惑星系円盤 / スーパーアース / 惑星起源・進化 / 理論天文学 / 惑星形成 / 円盤進化計算 / タイプI移動 / 大気量進化計算
Outline of Final Research Achievements

We investigated planet formation processes by using N-body simulations that take into account the disk evolution and atmospheric structure calculations. We first focused on revealing effects of global gas flows on the type I migration. We also examined origins of solar system’s terrestrial planets and super-Earths in extrasolar systems in evolving protoplanetary disks under effects of magnetically driven disk winds.

Academic Significance and Societal Importance of the Research Achievements

本研究では、円盤進化計算や大気量進化計算といった最新の数値計算を惑星集積N体計算に導入して惑星形成過程を調べるという点に重要な学術的意義がある。特に、円盤風の効果を考慮した最新の原始惑星系円盤進化計算を惑星集積N体計算に組み込んだ研究例はこれまでに無く、本研究によって初めて調べられたものである。この数値計算の結果として、これまでの計算では不可能であった観測されたスーパーアース系の特徴の再現に成功していることからも、本研究の重要性を読み取ることができる。

Report

(3 results)
  • 2018 Final Research Report ( PDF )
  • 2017 Annual Research Report
  • 2016 Annual Research Report
  • Research Products

    (13 results)

All 2018 2017 2016 Other

All Int'l Joint Research (2 results) Journal Article (4 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 4 results) Presentation (7 results) (of which Int'l Joint Research: 7 results,  Invited: 1 results)

  • [Int'l Joint Research] Observatoire de la Cote d'Azur(フランス)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] Observatoire de la Cote d’Azur(France)

    • Related Report
      2016 Annual Research Report
  • [Journal Article] Formation of the terrestrial planets in the solar system around 1 au via radial concentration of planetesimals2018

    • Author(s)
      Ogihara Masahiro、Kokubo Eiichiro、Suzuki Takeru K.、Morbidelli Alessandro
    • Journal Title

      Astronomy & Astrophysics

      Volume: 612 Pages: L5-L5

    • DOI

      10.1051/0004-6361/201832654

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Formation of close-in super-Earths in evolving protoplanetary disks due to disk winds2018

    • Author(s)
      Ogihara Masahiro、Kokubo Eiichiro、Suzuki Takeru K.、Morbidelli Alessandro
    • Journal Title

      Astronomy & Astrophysics

      Volume: 615 Pages: A63-A63

    • DOI

      10.1051/0004-6361/201832720

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Effects of global gas flows on type I migration2017

    • Author(s)
      Ogihara Masahiro、Kokubo Eiichiro、Suzuki Takeru K.、Morbidelli Alessandro、Crida Aurelien
    • Journal Title

      Astronomy & Astrophysics

      Volume: 608 Pages: A74-A74

    • DOI

      10.1051/0004-6361/201730777

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Evolution of protoplanetary discs with magnetically driven disc winds2016

    • Author(s)
      Suzuki Takeru K.、Ogihara Masahiro、Morbidelli Alessandro、Crida Aurelien、Guillot Tristan
    • Journal Title

      Astronomy & Astrophysics

      Volume: 596 Pages: A74-A74

    • DOI

      10.1051/0004-6361/201628955

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] Formation of close-in super-Earths in a disk evolving via disk winds2018

    • Author(s)
      Masahiro Ogihara
    • Organizer
      DTA Symposium 8
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Formation of close-in super-Earths in an evolving disk via disk winds2018

    • Author(s)
      Masahiro Ogihara
    • Organizer
      49th DDA Annual Meeting
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Formation of close-in super-Earths in disks evolving via disk winds2017

    • Author(s)
      Masahiro Ogihara
    • Organizer
      ACCRETE meeting
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Formation of close-in super-Earths in disks evolving via disk winds and implications for the origin of outer planets2017

    • Author(s)
      Masahiro Ogihara
    • Organizer
      Exoclipse 2017
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Migration and accretion of close-in super-Earths2017

    • Author(s)
      Ogihara Masahiro
    • Organizer
      Planet2 Symposium 2017
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Formation of terrestrial planets in disks evolving via disk winds2016

    • Author(s)
      Ogihara Masahiro
    • Organizer
      Japan-Germany planet & disk workshop
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Terrestrial planet formation in disks evolving via disk winds2016

    • Author(s)
      Ogihara Masahiro
    • Organizer
      New Directions in Planet Formation
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited

URL: 

Published: 2016-09-02   Modified: 2020-03-30  

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