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2005 Fiscal Year Final Research Report Summary

Construction of Hybrid Model for Astrophysical Jets

Research Project

Project/Area Number 15540235
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Astronomy
Research InstitutionOsaka Kyoiku University

Principal Investigator

FUKUE Jun  Osaka Kyoiku University, Faculty of Education, Professor, 教育学部, 教授 (80173326)

Project Period (FY) 2003 – 2005
Keywordsastrophysical jets / accretion disks / black holes / X-ray binary / active galactic nuclei / microquasar SS433 / relativistic astrophysics / radiation hydrodynamics
Research Abstract

FY2003
We constructed a steady jet model emanating from a geometrically thin disk, taking into account the gas, radiation, and magnetic pressures. We have found that the jet flow generally have multiple critical (transonic) points, since the gravitational and radiative forces along the streamline do not monotonic.
As a result, the jet flow is accelerated by passing through the saddle type critical point to be supersonic.
We also obtained an approximate empirical formula for the terminal speed of jet flows.
FY2004
We examined on-axis jets of supercritical accretion disks, where the mass-accretion rate highly exceeds the Eddington accretion rate. The jet gas suffers from the gravity of the central object, the radiative flux from the disk, and the radiation drag force of the intense radiation fields of the disk.
We have calculated the equilibrium speed as well as the terminal one for on-axis jets.
We also found a useful expression between the terminal speed and the disk luminosity.
FY2005
We carefully examined the relativistic radiative flow from a luminous disk under a fully special relativistic treatment. The flow is assumed to be vertical, and the gravity, the gas pressure, and the viscous heating are ignored. The radiatively-driven flow in a luminous disk is numerically solved, from the flow base (disk "inside") to the flow top. For a given optical depth and appropriate initial conditions at the flow base, where the flow starts, a loaded mass in the flow is obtained as an eigenvalue of the boundary condition at the flow top. Moreover, the flow velocity and radiation fields along the flow are obtained as a function of the optical depth.

  • Research Products

    (35 results)

All 2005 2004 2003

All Journal Article (32 results) Book (3 results)

  • [Journal Article] Geometrical Effect of Supercritical Accretion Flows2005

    • Author(s)
      Ken-ya Watarai
    • Journal Title

      Publ. Astron. Soc. Japan 57,3

      Pages: 513-524

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Terminal Speed of On-Axis Jets from a Supercritical Accretion Disk2005

    • Author(s)
      Jun Fukue
    • Journal Title

      Publ. Astron. Soc. Japan 57,4

      Pages: 691-698

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Eclipsing Light-Curve Asymmetry for Black-Hole Accretion Flows2005

    • Author(s)
      Ken-ya Watarai
    • Journal Title

      Publ. Astron. Soc. Japan 57,5

      Pages: 827-833

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Radiative Flow in a Luminous Disk2005

    • Author(s)
      Jun Fukue
    • Journal Title

      Publ. Astron. Soc. Japan 57,5

      Pages: 841-847

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Relativistic Radiative Flow in a Luminous Disk2005

    • Author(s)
      Jun Fukue
    • Journal Title

      Publ. Astron. Soc. Japan 57,6

      Pages: 1023-1030

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Geometrically Effect of Supercritical Accretion Flows.2005

    • Author(s)
      Watarai Ken-ya et al.
    • Journal Title

      PASJ 57, 3

      Pages: 513-524

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Terminal Speed of On-Axis Jets from a Supercritical Accretion Disk.2005

    • Author(s)
      Fukue Jun
    • Journal Title

      PASJ 57, 4

      Pages: 691-698

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Eclipsing Light-Curve Asymmetry for Black-Hole Accretion Flows.2005

    • Author(s)
      Watarai Ken-ya et al.
    • Journal Title

      PASJ 57, 5

      Pages: 827-833

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Radiative Flow in a Luminous Disk.2005

    • Author(s)
      Fukue Jun
    • Journal Title

      PASJ 57, 5

      Pages: 841-847

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Relativistic Radiative Flow in a Luminous Disk.2005

    • Author(s)
      Fukue Jun
    • Journal Title

      PASJ 57, 6

      Pages: 1023-1030

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Radiato-Magneto-Thermal Winds from an Accretion Disk2004

    • Author(s)
      Fukue Jun
    • Journal Title

      Publ. Astron. Soc. Japan 56,1

      Pages: 181-192

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Critical Accretion Disk2004

    • Author(s)
      Fukue Jun
    • Journal Title

      Publ. Astron. Soc. Japan 56,4

      Pages: 569-580

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] General Relativity and the Pseudo-Newtonian Potential2004

    • Author(s)
      Fukue Jun
    • Journal Title

      Publ. Astron. Soc. Japan 56,5

      Pages: 681-683

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Sound Speed and the Pseudo-Newtonian Potential2004

    • Author(s)
      Fukue Jun
    • Journal Title

      Publ. Astron. Soc. Japan 56,6

      Pages: 959-963

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Light-Curve of a Hot Spot on Advection-Like Accretion Disk2004

    • Author(s)
      Fukue Jun
    • Journal Title

      Prog. Theor. Phys. Suppl. 155

      Pages: 329-330

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Configuration and Spectrum of Radiatively-Driven Winds2004

    • Author(s)
      Orihara Shiho, Fukue Jun
    • Journal Title

      Prog. Theor. Phys. Suppl. 155

      Pages: 403-404

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Light Curve Analysis of Microquasar GRO J1655-402004

    • Author(s)
      Ozawa Tomoko, Fukue Jun
    • Journal Title

      Prog. Theor. Phys. Suppl. 155

      Pages: 405-406

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Radiato-Magneto-Thermal Winds from an Accretion Disk.2004

    • Author(s)
      Fukue Jun
    • Journal Title

      PASJ 56, 1

      Pages: 181-192

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Critical Accretion Disk.2004

    • Author(s)
      Fukue Jun
    • Journal Title

      PASJ 56, 4

      Pages: 569-580

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] General Relativity and the Pseudo-Newtonian Potential.2004

    • Author(s)
      Fukue Jun
    • Journal Title

      PASJ 56, 5

      Pages: 681-683

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Sound Speed and the Pseudo-Newtonian Potential.2004

    • Author(s)
      Fukue Jun
    • Journal Title

      PASJ 56, 6

      Pages: 959-963

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Light-Curve of a Hot Spot on Advection-Like Accretion Disk.2004

    • Author(s)
      Fukue Jun
    • Journal Title

      PTP 155

      Pages: 329-330

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Configuration and Spectrum of Radiatively-Driven Winds.2004

    • Author(s)
      Orihara Shiho, Fukue Jun
    • Journal Title

      PTP 155

      Pages: 403-404

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Light Curve Analysis of Microquasar GRO J1655-40.2004

    • Author(s)
      Ozawa Tomoko, Fukue Jun
    • Journal Title

      PTP 155

      Pages: 405-406

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Wavy Stratus under Photon Surfing over Luminous Disks2003

    • Author(s)
      Fukue Jun
    • Journal Title

      Publ. Astron. Soc. Japan 55,2

      Pages: 451-459

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Radiative Collimation of Electron-Positron Jets II2003

    • Author(s)
      Orihara Siho
    • Journal Title

      Publ. Astron. Soc. Japan 55,4

      Pages: 953-958

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Cloudy Accretion Disks2003

    • Author(s)
      Kitabatake Etsuko
    • Journal Title

      Publ. Astron. Soc. Japan 55,6

      Pages: 1115-1120

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Light-Curve Diagnosis of a Hot Spot for Accretion-Disk Models2003

    • Author(s)
      Fukue Jun
    • Journal Title

      Publ. Astron. Soc. Japan 55,6

      Pages: 1121-1125

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Wavy Stratus under Photon Surfing over Luminous Disks.2003

    • Author(s)
      Fukue Jun
    • Journal Title

      PASJ 55, 2

      Pages: 451-459

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Radiative Collimation of Electron-Positron Jets. II2003

    • Author(s)
      Orihara Shiho, Fukue Jun
    • Journal Title

      PASJ 55, 4

      Pages: 953-958

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Cloudy Accretion Disks.2003

    • Author(s)
      Kitabatake Etsuko, Fukue Jun
    • Journal Title

      PASJ 55, 6

      Pages: 1115-1120

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Light-Curve Diagnosis of a Hot Spot for Acc retion-Disk Models.2003

    • Author(s)
      Fukue Jun
    • Journal Title

      PASJ 55, 6

      Pages: 1121-1125

    • Description
      「研究成果報告書概要(欧文)」より
  • [Book] ブラックホールは怖くない? ブラックホール天文学基礎編2005

    • Author(s)
      福江 純
    • Total Pages
      179
    • Publisher
      恒星社厚生閣
    • Description
      「研究成果報告書概要(和文)」より
  • [Book] 最新天文小辞典2004

    • Author(s)
      福江 純
    • Total Pages
      446
    • Publisher
      東京書籍
    • Description
      「研究成果報告書概要(和文)」より
  • [Book] <見えない宇宙>の歩き方2003

    • Author(s)
      福江 純
    • Total Pages
      253
    • Publisher
      PHP研究所
    • Description
      「研究成果報告書概要(和文)」より

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Published: 2007-12-13  

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