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High-Speed Ha Canera for Solar Flare Observation

Research Project

Project/Area Number 12640244
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Astronomy
Research InstitutionNational Astronomical Observatory

Principal Investigator

HANSOKA Yoichro  National Astronomical Observatory Division of Radio Astronomy, Assistamt Professor, 電波天文学研究系, 助教授 (10238040)

Co-Investigator(Kenkyū-buntansha) KITAI Reizaburo  Kyoto University,Faculty of Science,Assistant Professor, 理学部, 助教授 (40169850)
ICHIMOTO Kiyoshi  National Astronomical Observatory Division of Solar Phsics,Assistant Professor, 太陽物理学研究系, 助教授 (70193456)
SAKURAI Takashi  National Astronomical Observatory Division of Solar Phsics,Professor, 太陽物理学研究系, 教授 (40114491)
Project Period (FY) 2000 – 2001
Project Status Completed (Fiscal Year 2001)
Budget Amount *help
¥3,300,000 (Direct Cost: ¥3,300,000)
Fiscal Year 2001: ¥1,000,000 (Direct Cost: ¥1,000,000)
Fiscal Year 2000: ¥2,300,000 (Direct Cost: ¥2,300,000)
KeywordsSolar flares / Real-time image processing / Ha imaging observation / Hα
Research Abstract

We have developed a new digital imaging system for the Ha imager of the Flare Telescope at Mitaka, NAOJ, for high-cadence observations of solar flares. It covers a 6.4x4.9 arcmin field of view with 660x494 pixels, and the time resolution is 1/30 sec at best (it depends on the field of view). To resolve individual spikes (elementary bursts) of impulsive solar flares requires a time resolution within 1 sec and a spatial resolution of about 1 arcsec. Although it is difficult to realize such high temporal and high spatial resolutions simultaneously with the hard X-ray instruments, even a small Ha telescope shows us a rapid change of the flare kernel with one arcsec resolution. The problem in the high-cadence Ha observations has been the handling of huge amount of data produced by such a type of observations, but the recent advance of the computer technology enables us to handle vast data with a small computer. We started the regular observation with this system in July 2001, and we have had a collaboration with Yohkoh for half a year. After the HESSI's launch, we hope to collaborate with the HESSI to observe energetic phenomena of solar flares.

Report

(3 results)
  • 2001 Annual Research Report   Final Research Report Summary
  • 2000 Annual Research Report
  • Research Products

    (22 results)

All Other

All Publications (22 results)

  • [Publications] Y.Hanaoka, T.Sakurai: "Determination of the magnetic loop configuration of a solar flare"Earth Planets Space. 53巻. 593-596 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] T.Sakurai, J.Shin: "Interpolation of One-and Two-Dimensional Images with Pixelwise Photon Number Conservation"Publications of the Astronomical Society of Japan. 53巻. 361-380 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] H.Wang, Y.Yan, T.Sakurai: "Topology of Magnetic Field and Coronal Heating in Solar Active Regions"Solar Physics. 201巻. 323-336 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] T.Sakurai et al.: "A Flexible Prism used as an Image Stabilizer"Solar Physics. 205巻. 201-208 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Choudhary, D.P., Sakurai, T., Venkatakrishnan, P.: "Chromospheric Magnetic Field of Solar Active Regions"Astrophysical Journal. 560巻. 439-444 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] T.Sakurai et al.: "Sunspot Magnetic Fields Observed with a Large-Format Infrared Array"Publications of the Astronomical Society of Japan. 53巻. 923-930 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Y. Hanaoka and T. Sakurai: "Determination of the magnetic loop configuration of a solar flare"Earth Planets Space.. Vol. 53. 593-596 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] T. Sakurai and J. Shin: "interpolations of the One- and Two-Dimensional Images with Pixelwise Photon Number Conservation"Interpolation of the Astronomical. Vol. 53. 361-380 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] H. Wang, Y. Van, and T. Sakurai: "Topology of Magnetic Field and Coronal Heating in Solar Active Regions"Solar Physics. Vol. 201. 323-380 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] T. Sakurai et al: "A Flexible Prism used as an Image Stabilizer"Soar Physics. Vol. 205. 201-208 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Choudhary, D.P. ; Sakurai, T. ; Venkatakrishnan, P: "Chromospheric Magnetic Field of Solar Active Regions"Astrophysical Journal. Vol. 560. 439-444 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] T. Sakurai et al: "Sunspot Magnetic Fields Observed with a Large-Format Infrared Array"Publication of the Astronomical. Vol. 53. 923-930 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Y.Hanaoka, T.Sakurai: "Determination of the magnetic loop configuration of a solar flare"Earth Planets Space. 53巻. 593-596 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] T.Sakurai, J.Shin: "Interpolation of One-and Two-Dimensional Images with Pixelwise Photon Number Conservation"Publications of the Astronomical Society of Japan. 53巻2号. 361-380 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] H.Wang, Y.Yan, T.Sakurai: "Topology of Magnetic Field and Coronal Heating in Solar Active Regions"Solar Physics. 201巻2号. 323-336 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] T.Sakurai et al.: "A Flexible Prism used as an Image Stabilizer"Solar Physics. 205巻1号. 201-208 (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] Choudhary, D.P., Sakurai, T., Venkatakrishnan, P.: "Chromospheric Magnetic Field of Solar Active Regions"Astrophysical Journal. 560巻1号. 439-444 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] T.Sakurai et al.: "Sunspot Magnetic Fields Observed with a Large-Format Infrared Array"Publications of the Astronomical Society of Japan. 53巻5号. 923-930 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Y.Kanaoka: "Radio and X-Ray Observations of Double Loop Flares"Advances in Space Research. 26巻3号. 453-456 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] T.Sakurai and J.Shin: "Determination of the Point Spread Function of the Yohkoh Soft X-Ray Telescope"Advances in Space Research. 25巻9号. 1761-1764 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] N.Srivastava,R.Schwenn,B.Inhester,S.Martin,Y.Hanaoka: "Factors Related to the Origin of a Gradual Coronal Mass Ejection Associated with an Eruptive Prominence on 1998 June 21-22"Astrophysical Journal. 534巻1号. 468-481 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] N.Gopalswamy,Y.Hanaoka,and H.S.Hudson: "Structure and Dynamics of the Corona Surrounding an Eruptive Prominence"Advances in Space Research. 25巻9号. 1851-1854 (2000)

    • Related Report
      2000 Annual Research Report

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Published: 2000-04-01   Modified: 2016-04-21  

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