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X-ray Observations on Magnetic Fields around Active Galaxies

Research Project

Project/Area Number 08454057
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field 素粒子・核・宇宙線
Research InstitutionThe University of Tokyo

Principal Investigator

TASHIRO Makoto  The University of Tokyo, Graduate School of Science, Physics, Research Associate, 大学院・理学系研究科, 助手 (00251398)

Co-Investigator(Kenkyū-buntansha) FUKAZAWA Yasushi  The University of Tokyo, Graduate School of Science, Physics, Research Associate, 大学院・理学系研究科, 助手 (60272457)
MAKISHIMA Kazuo  The University of Tokyo, Graduate School of Science, Physics, Professor, 大学院・理学系研究科, 教授 (20126163)
Project Period (FY) 1996 – 1998
Project Status Completed (Fiscal Year 1998)
Budget Amount *help
¥5,600,000 (Direct Cost: ¥5,600,000)
Fiscal Year 1998: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 1997: ¥2,000,000 (Direct Cost: ¥2,000,000)
Fiscal Year 1996: ¥2,800,000 (Direct Cost: ¥2,800,000)
KeywordsX-ray astronomy / active galaxy / blazar objects / radio galaxy / cosmic jet / radio lobe / magnetic field / cluster of galaxies / BLazar天体 / BL Lac天体 / X線検出器
Research Abstract

The project includes observational investigation on active galactic neuclei exhibiting cosmic jets and developments of hard X-ray detectors for future mission. Summary of the activities are shown below.
1. An X-ray observation of the radio galaxy Centaurus B were carried out and the results were published in the Astrophysical Journal (Tashiro et al., 1998, ApJ, 499, 713). This reports the second detection of inverse-Comptonized X-rays from the radio lobes, and shows the first evidence that the particle energy density dominates the energy density of magnetic fields in the radio lobes.
2. Follow up X-ray observation of the radio galaxy Fornax A were also carried out with the X-ray observatory ASCA and the results were reported in an international symposium. The results shows an incoincidence between the positions of the density peaks of electrons and magnetic field for the first time.
3. A review of the X-ray observations of radio lobes was presented in an international symposia (COSPAR scientific assembly E1.l and the 3rd ASCA symposium). Proceedings will be published in refereed journals.
4. Development and verifications of data processing system for the Hard X-ray Detector (HXD) onboard ASTRO-E was carried out. ASTRO-E will be launched in early 2000.

Report

(4 results)
  • 1998 Annual Research Report   Final Research Report Summary
  • 1997 Annual Research Report
  • 1996 Annual Research Report
  • Research Products

    (24 results)

All Other

All Publications (24 results)

  • [Publications] Tashiro,M.et al.: "Evidens of Energy Nonequipartition between Particles and Field in lobes of the PKSBA3-601 (Centaurus-B)" The Astrophysical Journal. 499. 713-718 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Kubo,H.et al.: "ASCA Observations of BlaZars and Multiband Analysis" The Astrophysical Journal. 504. 693-701 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Iyomoto,N.et al.: "The Declined Activity in the Neucleus of NGC1316" The Astrophysical Journal. 503. L31-L34 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Tamura,T.et al: "ASCA Observations of a Nearby and Massive Galaxy Cluster A3627" Publications of Astronomical Society of Japan. 50. 195-201 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Ota,N.et al.: "ASCA Observations of the Lensing Clusters CLO500-24,CL2244-20 and A,370" The Astrophysical Journal. 495. 170-178 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Tashiro, M., et al.: "Evidence of Energy Nonequipartition between Particles and Fields in Lobes of the PKS 1343-601 (Centaurus B)" the Astrophysical Journal. vol.499. 713-718 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Kubo, H., et al.: "ASCA Observations of Blazars and Multiband Analysis" the Astrophysical Journal. vol.504. 693-701 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Iyomoto, N., et al.: "The Declined Activity in the Neucleus of NGC 1316" the Astrophysical Journal. vol.503. L31-L34 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Tamura, T., et al.: "ASCA Observations of a Nearby and Massive Galaxy Cluster Abell 3627" Publications of Astronomical Society of Japan. vol.50. 195-201 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Ota, N., et al.: "ASCA Observations of the Lensing Clusters CL0550-24, CL2244-20 and A370" the Astrophysical Journal. vol.495. 170-178 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Tashiro, M.et al.: "Evidence of Energy Nonequipartition between Particle and Field in Lobes of the Radio Galary PKSi343-601 (Ccraomrus B)" The Astropnysical Journal. 499. 713-718 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Kubo,H. et al.: "ASCA Observations of Blazars and Multiband Analysis" The Astropnysical Journal. 504. 693-701 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Iyonioto, N et al.: "The Declined Activity in the Neucleus of NGC 1316" the Astrophsical Journal. 503. L31-L34 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Tamura,T.et al.: "ASCA Observations of a Nearby and Massive Galaxy Cluster Abell 3627" Publications of Astronomical Society of Japan. 50. 195-201 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Ota,N.et al.: "ASCA Observations of the Lensing Clusters CLO500-24, CL2244-20, and A 370" the Astrophysical Journal. 495. 170-178 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Tashiro,M., et al.: "Evidence of energy non-equipurtition between particles and fields in lobes of the radio galaxy PKS1343-601 (CentaurusB)" the Astrophysical Journal. 499(印刷中). (1998)

    • Related Report
      1997 Annual Research Report
  • [Publications] Iyomoto,N., et al.: "Detection of Strong Fe-Klines from the spiral galaxies NGC1365 and NGC1386" Publcations of the Astronomical Society of Japan. 49. 425-434 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Idesawa,E., et al.: "X-Ray. Observations of the BL Lacertae Object OJ287 with ASCA" Publications of the Astronomical Society of Japan. 49. 631-637 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Yamashita,A., et al.: "Evidence of an Ionized Iron Emission Line from the Radionquiet Quasar E1821+643 by ASCA" the Astrophysical Journal. 486. 763 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Urry,C.M., et al.: "Multiwavelength Moniforing of the BL Lacertae Object PKS2155-304 in 1994 May.III. Probing the Inner Jet through Multiwavelength Correlations" the Astrophysical Journal. 486. 799 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Takahashi,T.,et al.: "ASCA observation of an X-ray/TeV flare from the BL Lacertae object Markarian 421" Astrophysical Journal,Letters. 470. L89-L92 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] Ohashi,T.,et al.: "The Gas Imaging Spectrometer on Board ASCA" Publ.Astron.Soc.Japan. 48. 157-170 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] Makishima,K.,et al.: "In-orbit performance of the Gas Imaging Spectrometer onboard ASCA" Publ.Astron.Soc.Japan. 48. 171-189 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] Takahashi,T.,et al.: "Development of the Hard X-ray Detector for the ASTRO-E mission" Astron.& Astrophys.Suppl.120. 645-648 (1996)

    • Related Report
      1996 Annual Research Report

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Published: 1996-04-01   Modified: 2016-04-21  

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