• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Research of Twisted Structures in Emerging Flux to be Source of Solar Plasma Eruptions

Research Project

Project/Area Number 14340060
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Astronomy
Research InstitutionKyoto University

Principal Investigator

KUROKAWA Hiroki  Kyoto University, Graduate School of Science, Professor, 大学院・理学研究科, 教授 (80135508)

Co-Investigator(Kenkyū-buntansha) SHIBATA Kazunari  Kyoto University, Graduate School of Science, Professor, 大学院・理学研究科, 教授 (70144178)
KITAI Reizaburou  Kyoto University, Graduate School of Science, Associate Professor, 大学院・理学研究科, 助教授 (40169850)
UENO Satoru  Kyoto University, Graduate School of Science, Assistant Professor, 大学院・理学研究科, 助手 (70303807)
一本 潔  京都大学, 大学院・理学研究科, 助教授 (70193456)
Project Period (FY) 2002 – 2004
Project Status Completed (Fiscal Year 2004)
Budget Amount *help
¥12,900,000 (Direct Cost: ¥12,900,000)
Fiscal Year 2004: ¥1,300,000 (Direct Cost: ¥1,300,000)
Fiscal Year 2003: ¥1,300,000 (Direct Cost: ¥1,300,000)
Fiscal Year 2002: ¥10,300,000 (Direct Cost: ¥10,300,000)
KeywordsSolar magnetic field / High resolution solar telescope / Solar flare / Solar plasm ejection / Solar Halpha surge / Space weather forecast / 高分解Hα太陽全面像 / 浮上磁場領域 / 太陽プラズマ噴出 / 太陽黒点領域 / 太陽磁場活動望遠鏡 / 捩れた磁束管の浮上 / ベクトル磁場測定 / Hα単色太陽全体像 / 磁気エネルギー蓄積機構 / 超狭帯域単色フィルター
Research Abstract

To guarantee human beings to work safely and effectively in the space, the forecast for strong solar flares is indispensable. And the study of the build-up and release mechanism of the magnetic field energy, which is the source of flares and solar plasm ejections, is essentially needed.
To study the build-up and release mechanism of he magnetic field energy we need to measure the variations of the three dimensional structures of solar magnetic field over the full solar disk. The primary purpose of this research project is the construction of a good full-solar-disk vector magnetograph. We succeeded to construct the new Solar Magnetic Activity Research Telescope (SMART) at Hida Observatory, Graduate School of Science, Kyoto University form 2002 through 2003.
In 2004, we made many test observation to examine the performance of the SMART and made many fine adjustment to optimize the power of the telescope. From these observation with SMART, we got the following results :
(1)We confirmed the SMART achieves the best spatial resolution in the world in the full disk Halpha solar image. The better spatial resolution than 1 arc second is obtained over the full solar disk with the SMART.
(2)We first succeeded to obtain the full disk solar vector magnetic field image with the SMART.
(3)We succeeded in keeping the temperature inside of the telescope tubes to be in the range from 30 degrees to 20 degrees throughout a year in the atomospheric temperature variation from -17degrees (in winter) to 30 degrees (in summer) to stabilize the many kinds of optical elements in their best condition.
We also succeeded in getting many new findings in the studies of mechanism of solar flare and solar plasm ejections called as Halpha surge by using the Hida Domeless Solar Telescope and Satellite instruments such as TRACE and SOHO, and we published these results in many papers which are summarized in a report book.

Report

(4 results)
  • 2004 Annual Research Report   Final Research Report Summary
  • 2003 Annual Research Report
  • 2002 Annual Research Report
  • Research Products

    (32 results)

All 2005 2004 2003 Other

All Journal Article (21 results) Publications (11 results)

  • [Journal Article] A Study on Surges : I. Automatic Detection of Dynamic Halpha Dark Features From High Cadence Full Disk.2005

    • Author(s)
      Liu Y., Kurokawa H., 他
    • Journal Title

      Solar Physics (印刷中)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Transition Region Downflows in the Impulsive Phase of Solar Flares.2005

    • Author(s)
      Kamio, S., Kurokawa H., 他
    • Journal Title

      Astrophy. J. 625

      Pages: 1027-1027

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] A Study on Surges : I.Automatic Detection of Dynamic Halpha Dark Features From High Cadence Full Disk.2005

    • Author(s)
      LIU Y, KUROKAWA H., et al.
    • Journal Title

      Solar Physics (in press)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Transition Region Downflows in the Impulsive Phase of Solar Flares.2005

    • Author(s)
      KAMIO, S., KUROKAWA H.et al.
    • Journal Title

      Astrophy.J. 625

      Pages: 1027-1027

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Transition region downflows in the impulsive phase of solar flares2005

    • Author(s)
      Kamio, S., Kurokawa, H., Brooks, D.H.
    • Journal Title

      Astrophysical Journal June

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Hida Domeless Solar Telescope and SOHO Coronal Diagnostic Spectrometer Observations of Short Duration Active Region Blinkers. II. Extreme Ultraviolet Properties.2004

    • Author(s)
      Brooks, D.H., Kurokawa, H.
    • Journal Title

      Astrophy. J. 611

      Pages: 1125-1125

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Short Duration Active Region Brightenings Observed in the Extreme Ultraviolet and Halpha by the Solar and Heliospheric Observatory Coronal Diagnostic Spectrometer and Hida Domeless Solar Telescope2004

    • Author(s)
      Brooks, D.H., Kurokawa, H., 他
    • Journal Title

      Astrophy. J. 602

      Pages: 1051-1051

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] On a Surge : Properties of an Emerging Flux Region.2004

    • Author(s)
      Liu, Yu, Kurokawa, Hiroki
    • Journal Title

      Astrophy. J. 610

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Flare Ribbon Expansion and Energy Release Rate.2004

    • Author(s)
      Asai, A., Yokoyama, T., Shimojo, M., Masuda, S., Kurokawa, H., Shibata, K.
    • Journal Title

      Astrophy. J. 611

      Pages: 557-557

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Hida domeless Solar Telescope and SOHO Coronal Diagnostic Spectrometer Observations of Short Duration Active Region Blinkers.II. Extreme Ultraviolet Properties2004

    • Author(s)
      BROOKS, D.H., KUROKAWA, H.
    • Journal Title

      Astrophys.J. 611

      Pages: 1125-1125

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Short Duration Active Region Brightenings Observed in the Extreme Ultraviolet and Halpha by the Solar and Heliospheric Observatory Coronal Diagnostic Spectrometer and Hida Domeless Solar Telescope2004

    • Author(s)
      BROOKS, D.H., KUROKAWA, H., et al.
    • Journal Title

      Astrophys.J. 602

      Pages: 1051-1051

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] On a Surge : Properties of an Emerging Flux Region.2004

    • Author(s)
      LIU, Yu, KUROKAWA, Hiroki
    • Journal Title

      Astrophy.J. 610

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Flare Ribbon Expansion and Energy Release Rate.2004

    • Author(s)
      ASAI, A., YOKOYAMA, T., SHIMOTO, M., MASUDA, S., KUROKAWA, H,.SHIBATA, K.
    • Journal Title

      Astrophy.J. 611

      Pages: 557-557

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Filament Oscillations and Moreton Waves Associated with EIT Waves.2004

    • Author(s)
      OKAMOTO, T.J., NAKAI, H, KEIYAMA, A ; NARUKAGE, N ; UENO, S ; KITAI, R ; KUROKAWA, H ; SHIBATA, K.
    • Journal Title

      Astrophy.J. 608

      Pages: 1124-1124

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] X-Ray Expanding Features Associated with a Moreton Wave2004

    • Author(s)
      NARUKAGWE, N.; MORIMOTO, T.; KADOTA, M.; KITAI, R.; KUROKAWA, H.; SHIBATA, K.
    • Journal Title

      Publ.Astron.Soc.Japan 56L

      Pages: 5-5

    • NAID

      10023930539

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Formation of Opposite-site Magnetic Helicity by an Erupting Filament in a Coronal Mass Ejection2004

    • Author(s)
      Liu, Y., Kurokawa, H.
    • Journal Title

      Publication of Astronomical society of Japan 56

      Pages: 497-507

    • Related Report
      2004 Annual Research Report
  • [Journal Article] On a Surge : Properties of an Emerging Flux Region2004

    • Author(s)
      Liu, Y., Kurokawa, H.
    • Journal Title

      Astrophysical Journal 610

      Pages: 1136-1147

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Flare Ribbon Expansion And Energy Release Rate2004

    • Author(s)
      Asai, A., Yokoyama, Shimojo, Masuda, Kurokawa, H, Shibata, K
    • Journal Title

      Astrophysical Journal 611

      Pages: 557-557

    • Related Report
      2004 Annual Research Report
  • [Journal Article] HIDA/DST and SOHO/CDS observations of short duration active region blinkers - II. EUV properties2004

    • Author(s)
      Brooks, D.H., Kurokawa, H.
    • Journal Title

      Astrophysical Journal 611

      Pages: 1125-1125

    • Related Report
      2004 Annual Research Report
  • [Journal Article] The development of filter vector magnetographs for the Solar Magnetic Activity Research Telescope (SMART) in2004

    • Author(s)
      Ueno, S., Nagata, S., Kitai, R., Kurokawa, H., Ichimoto, K.
    • Journal Title

      Proc.of SPIE 5492

      Pages: 958-958

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Eruptive and Quasi-Eruptive Disappearing Solar Filaments and Their Relationship with Coronal Activities2003

    • Author(s)
      MORIMOTO, T., KUROKAWA, H.
    • Journal Title

      Publ.Astron.Soc.Japan 55

      Pages: 1141-1141

    • NAID

      10023929629

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Publications] Brooks, D.H., Kurokawa, H., 他: "Short duration active region brightenings observed in the EUV and H alpha by SOHO/CDS and HIDA/DST"Astrophysical Journal. 602(In press). (2004)

    • Related Report
      2003 Annual Research Report
  • [Publications] T.Morimoto, H.Kurokawa: "Eruptive and Quasi-Eruptive Disappearing Solar Filaments and Their Relationship with Coronal Activities"Publication of Astronomical Society of Japan. 55. 1141-1151 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] S.Kamio, H.Kurokawa 他: "Precise Determination of Cooling Times of Post Flare Loops from the Detailed Comparison betaeen Hα and soft X-ray images"Solar Physics. 215. 127-146 (2002)

    • Related Report
      2003 Annual Research Report
  • [Publications] Brooks, D.H., Kurokawa, H.他: "A study of the causal relationship between the emergence of a twisted magnetic flux rope and a small H alpha two-ribbon flare"Astronomy and Astrophysics. 411. 273-290 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Ishii, T.T., Kurokawa, H.他: "Twisted Magnetic Flux Bundle Models for Solar Flares"Proc. of IAU Symp.219. (in press). (2004)

    • Related Report
      2003 Annual Research Report
  • [Publications] K.Yoshimura, H.Kurokawa他: "Close Correlation among Hα Surges, Magnetic Flux Cancellations, and UV Brightenings found at the Edge of an Emerging Flux region"Publication of Astronomical Society of Japan. 55. 313-320 (2003)

    • Related Report
      2002 Annual Research Report
  • [Publications] T.Morimoto, H.Kurokawa: "A New Method for the Determination of 3-D Velocity Fields of Disappearing Solar Filaments"Publication of Astronomical Society of Japan. (in press). (2003)

    • Related Report
      2002 Annual Research Report
  • [Publications] S.Kamio, H.Kurokawa他: "Precise Determination of Cooling Times of Post Flare Loops from the Detailed Comparison betaeen Hα and soft X-ray images"Solar Physics. (in press). (2003)

    • Related Report
      2002 Annual Research Report
  • [Publications] H.Kurokawa他: "Pre-Flare Heating around the Temperature Minimum Region Found Prior to An X-class Flare"COSPAR Colloq. Series. 13. 257-258 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] A.Asai, T.Ishii, H.Kurokawa他: "Evolution of Conjugate Footpoints inside flare Ribbons during a Great Two-Ribbon flare on 2001 April 10"The Astrophysical Journal. (in press). (2003)

    • Related Report
      2002 Annual Research Report
  • [Publications] A.Asai, S.Masuda, S.Yokoyama: "Difference between Spatial Distribution of the Hα Kernels and Hard X-ray Sources in a Solar Flare"The Astrophysical Journal. 578. L91-L93 (2002)

    • Related Report
      2002 Annual Research Report

URL: 

Published: 2002-04-01   Modified: 2016-04-21  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi