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2019 年度 実績報告書

Can planetesimal accretion break planet resonance?

研究課題

研究課題/領域番号 16K17654
研究機関国立研究開発法人宇宙航空研究開発機構

研究代表者

タスカー エリザベス  国立研究開発法人宇宙航空研究開発機構, 宇宙科学研究所, 准教授 (40620373)

研究期間 (年度) 2016-04-01 – 2020-03-31
キーワードexoplanet: properites / numerical methods / catalogues / machine learning
研究実績の概要

This research aimed to predict the inflated radius of exoplanets using simulations. Initial results were disappointing, so we developed a neural network to identify patterns in the catalogue of exoplanet properties. Neural networks excel at finding trends in high-dimensional data that cannot be plotted on a graph.

While neural networks cannot reveal the association between properties, the trained network could estimate missing planetary properties, such as mass and radius. It is frequently impossible (even with further observations) to measure these properties, making these estimates valuable tools in developing planet formation theories.

This work also included a published outreach and education tool for exploring how the Earth’s environment is effected by small changes in properties.

備考

Video and website created to support published journal papers (1) Estimating Planetary Mass with Deep Learning and (2) Earth-Like.

  • 研究成果

    (9件)

すべて 2020 2019 その他

すべて 国際共同研究 (1件) 雑誌論文 (3件) (うち国際共著 3件、 査読あり 3件) 学会発表 (3件) (うち招待講演 3件) 備考 (2件)

  • [国際共同研究] McMaster University(カナダ)

    • 国名
      カナダ
    • 外国機関名
      McMaster University
  • [雑誌論文] Estimating Planetary Mass with Deep Learning2020

    • 著者名/発表者名
      Tasker, Elizabeth J., Laneuville, Matthieu, Guttenberg, Nicholas
    • 雑誌名

      The Astronomical Journal

      巻: 159 ページ: 13

    • DOI

      10.3847/1538-3881/ab5b9e

    • 査読あり / 国際共著
  • [雑誌論文] Earth-Like: an education & outreach tool for exploring the diversity of planets like our own2020

    • 著者名/発表者名
      Tasker, Elizabeth J., Ishimaru, Kana, Guttenberg, Nicholas, Foriel, Julien
    • 雑誌名

      International Journal of Astrobiology

      巻: 19 ページ: 264-275

    • DOI

      10.1017/S1473550419000326

    • 査読あり / 国際共著
  • [雑誌論文] Segmentation Convolutional Neural Networks for Automatic Crater Detection on Mars2019

    • 著者名/発表者名
      DeLatte, Danielle, Crites, Sarah, Guttenberg, Nicholas, Tasker, Elizabeth, Yairi, Takehisa
    • 雑誌名

      IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing

      巻: 12 ページ: 2944-2957

    • DOI

      10.1109/JSTARS.2019.2918302

    • 査読あり / 国際共著
  • [学会発表] Filling in the gaps2020

    • 著者名/発表者名
      Elizabeth Tasker
    • 学会等名
      University of Tokyo (seminar series)
    • 招待講演
  • [学会発表] Home Away from Home2019

    • 著者名/発表者名
      Elizabeth Tasker
    • 学会等名
      Perimeter Institute, Canada (invited public talk)
    • 招待講演
  • [学会発表] Dangerous Worlds2019

    • 著者名/発表者名
      Elizabeth Tasker
    • 学会等名
      McMaster University Origins Institute, Canada (invited public talk)
    • 招待講演
  • [備考] Outreach video: Mind the Gap!

    • URL

      https://www.youtube.com/watch?v=cQygpmYwKw4

  • [備考] Education website: Earth-Like

    • URL

      http://www.earthlike.world/

URL: 

公開日: 2021-01-27  

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