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2006 Fiscal Year Final Research Report Summary

Space Infrared Study of Evolution of Planetary Systems : from Disks to Planets

Research Project

Project/Area Number 15204013
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Research Field Astronomy
Research InstitutionJapan Aerospace Exploration Agency

Principal Investigator

NAKAGAWA Takao  Japan Aerospace Exploration Agency, Institute of Space and Astronautical Science, Professor, 宇宙科学研究本部, 教授 (20202210)

Co-Investigator(Kenkyū-buntansha) MURAKAMI Hiroshi  Japan Aerospace Exploration Agency, Institute of Space and Astronautical Science, Professor, 宇宙科学研究本部, 教授 (40135299)
KATAZA Hirokazu  Japan Aerospace Exploration Agency, Institute of Space and Astronautical Science, Associate Professor, 宇宙科学研究本部, 助教授 (70242097)
MATSUHARA Hideo  Japan Aerospace Exploration Agency, Institute of Space and Astronautical Science, Professor, 宇宙科学研究本部, 教授 (30219464)
YAMAMURA Issei  Japan Aerospace Exploration Agency, Institute of Space and Astronautical Science, Assistant Professor, 宇宙科学研究本部, 助教授 (40322630)
WADA Takehiko  Japan Aerospace Exploration Agency, Institute of Space and Astronautical Science, Assistant Professor, 宇宙科学研究本部, 助手 (50312202)
Project Period (FY) 2003 – 2006
Keywordsexoplanets / debris disc / infrared astronomy / Infrared astronomical satellite / AKARI / coronagraph
Research Abstract

The infrared astronomical satellite IRAS found about 10 main sequence stars with far infrared excess, which invoked many discussions on the formation and evolution of circum-stellar dust disks (so-called debris disks) around main-sequence stars. The debris disks are believed to have strong connection with the formation and evolution on planetary systems.
One of the objectives of the current research is to increase the number of observations of debris disks significantly, which could enable statistical study of evolution of debris disks. For this purpose, we had been working on a Japanese infrared astronomical satellite program ASTROF. ASTROF was launched successfully in February 2006, and started all-sky survey observations, which are expected to bring us a new catalog of debris disks. We mainly worked on the planning of effective observations and the development of data reduction software tools for the all sky survey, both of which worked effectively for real observations.
To supplement space-borne observations, we also used ground-based telescopes for high-resolution observations of debris disks. One of the most important discoveries is the observational evidence for the presence of planets around beta Pic.
We also worked on the development of stellar coronagraphs for the direct detection of exoplanets with future missions. We fabricated a special binary shaped pupil, and achieved a contact of 10^7, which was a world record of contract without wavefront control. We also worked on Phase-Induced Amplitude Apodization coronagraphs to reduce the inner working angle (IWG), which is an important technique to enable the detection of exoplanets close to central stars.

  • Research Products

    (16 results)

All 2007 2006 2005 2004

All Journal Article (16 results)

  • [Journal Article] Mid- and far-infrared astronomy mission SPICA.2007

    • Author(s)
      Takao Nakagawa, Hiroshi Murakami
    • Journal Title

      Advanced Space Research (accepted)

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Microscopic Surface structure of C/SiC Composite Mirrors for Space Cryogenic Telescope2007

    • Author(s)
      Keigo Enya, Takao Nakagawa, Hidehiro Kaneda, Takashi Onaka et al.
    • Journal Title

      Applied Optics Vol.46, No.11

      Pages: 2049-2056

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Detecting Extra-solar Planets with the Japanese 3.5m SPICA Space Telescope2007

    • Author(s)
      Lyu Abe, Keigo Enya, Shinichiro Tanaka, Takao Nakagawa et al.
    • Journal Title

      Physics or Astrophysics (in press)

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Mid- and far-infrared astronomy mission SPICA2007

    • Author(s)
      Takao Nakagawa, Hiroshi Murakami
    • Journal Title

      Advanced Space Research (accepted)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Microscopic surface structure of C/SiC composite mirrors for space cryogenic telescopes2007

    • Author(s)
      K.Enya, T.Nakagawa, H.Kaneda, T.Onaka, T.Ozaki, M.Kume
    • Journal Title

      Applied Optics Vol.46, No.11

      Pages: 2049-2056

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Planets with the Japanese 3.5m SPICA Space Telescope2007

    • Author(s)
      Lyu Abe, Keigo Enya, Shinichiro Tanaka, Takao Nakagawa, Hirokazu Kataza, Motohide Tamura, Olivier Guyon
    • Journal Title

      Physics or Astrophysics (in press)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Binary-Shaped Pupil Coronagraphs for High-Contrast Imaging Using a Space Telescope with Central Obstructions2006

    • Author(s)
      Tanaka, Shinichiro, Enya, Keigo, Abe, Lyu, Nakagawa, Takao; et al.
    • Journal Title

      Publications of the Astronomical Society of Japan Vol.58, No.3

      Pages: 627-639

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] SPICA Working Group, Cryogenic infrared mission "JAXA/SPICA" with advanced cryocoolers2006

    • Author(s)
      Hiroyuki Sugita, Takao Nakagawa, Hiroshi Murakami et al.
    • Journal Title

      Cryogenics Vol.46

      Pages: 149-157

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Laboratory experiment of checkerboard pupil mask coronagraph2006

    • Author(s)
      K.Enya, S.Tanaka, L.Abe, T.Nakagawa
    • Journal Title

      Astronomy and Astrophysics Vol.461 (2)

      Pages: 783-787

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Binary-Shaped Pupil Coronagraphs for High-Contrast Imaging Using a Space Telescope with Central Obstructions2006

    • Author(s)
      Tanaka, Shinichiro, Enya, Keigo, Abe, Lyu, Nakagawa, Takao, Kataza, Hirokazu
    • Journal Title

      Publications of the Astronomical Society of Japan Vol.58, No.3

      Pages: 627-639

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] SPICA Working Group, Cryogenic infrared mission JAXA/SPICA with advanced cryocoolers2006

    • Author(s)
      Hiroyuki Sugita, Takao Nakagawa, Hiroshi Murakami, Atsushi Okamoto, Hiroki Nagai, Masahide Murakami, Katsuhiro Narasaki, Masayuki Hirabayashie
    • Journal Title

      Cryogenics Vol.46

      Pages: 149-157

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Laboratory experiment of checkerboard pupil mask coronagraph2006

    • Author(s)
      K.Enya, S.Tanaka, L.Abe, T.Nakagawa
    • Journal Title

      Astronomy and Astrophysics Vol.46(2)

      Pages: 783-787

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Cryogenic optical performance of the ASTRO-F SiC telescope2005

    • Author(s)
      H.Kaneda, T.Onaka, T.Nakagawa, K.Enya, H.Murakami et al.
    • Journal Title

      Applied Optics Vol. 44

      Pages: 6823-6832

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Cryogenic optical performance of the ASTRO-F SiC telescope2005

    • Author(s)
      H.Kaneda, T.Onaka, T.Nakagawa, K.Enya, H.Murakami, R.Yamashiro, T.Ezaki, Y.Numao, Y.Sugiyama
    • Journal Title

      Applied Optics Vol.44

      Pages: 6823-6832

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] An early extrasolar planetary system revealed by planetesimal belts in β Pictoris2004

    • Author(s)
      Okamoto, Yoshiko Kataza, Kataza, Hirokazu et al.
    • Journal Title

      Nature vol. 431

      Pages: 660-663

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] An early extrasolar planetary system revealed by planetesimal belts in β Pictoris2004

    • Author(s)
      Okamoto, Yoshiko Kataza, Kataza, Hirokazu, Honda, Mitsuhiko, Yamashita, Takuya, Onaka, Takashi, Watanabe, Jun-ichi, Miyata, Takashi, Sako, Shigeyuki, Fujiyoshi, Takuya, Sakon, Itsuki
    • Journal Title

      Nature vol.431

      Pages: 660-663

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 2008-05-27  

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