한국지구과학회지 (Journal of the Korean earth science society)

  • 제22권5호
  • /
  • Pages.423-426
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  • 2001
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  • 1225-6692(pISSN)
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  • 2287-4518(eISSN)
한국지구과학회 (The Korean Earth Science Society)
권호 표지

점성-충돌 강착원반의 안정과 각운동량

Stability and Angular Momentum of Accretion Disk with Viscosity-Collisions

  • 유계화 (이화여자대학교 사범대학 과학교육과)
  • Yoo, Kye-Wha (Department of Science Education, Ewha Womans University)
  • 발행 : 2001.10.31
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초록

점성과 충돌이 있는 강착원반의 확산 과정을 생각한다. 이때 확산계수는 단순하게 1/${\sqrt{r}}$로 비례한다. 강착원반의 난류에 의해서 각운동량은 외부로 수송된다. 파동도 또한 내부에서 외부로 전달되므로 강착원반은 불안정한 방향으로 진행된다.

The accretion disk with viscosity including collisions is examined. The diffusion process are also considered for a given mass distribution in the disk. Under such a circumstance the diffusion coefficient is simply proportional to 1/${\sqrt{r}}$ The disk rapidly transfers the turbulent angular momentum and the wave front toward the outer cold regions. Then an instability situation occurs in the disk.

키워드

참고문헌

  1. Astron. Astrophys v.119 The symbiotic star CH Cygni Duschl, W.J.
  2. Astron. Astrophys v.358 Saturation of electron cyclotron maser by lower-hybrid waves Fleishman, G.;Arzner, K.
  3. Accretion Power in Astrophys. Frank, J.;King, A.;Raine, D.
  4. Astron. Astrophys v.293 Observations and models of the UV/soft X-ray spectrum of the quasar PG1116+215 Ulrich, M.H.;Molendi, S.
  5. Publ. Astron. Soc. Japan v.45 On the exponential X-ray decay in X-ray novae Mineshige, S.;Yamashaki, T.;Ishizaka, C.
  6. Ann. Rev. Astron. Astrophys v.19 Accretion discs in astrophysics Pringle, J.E.
  7. Astron. Astrophys v.24 Black holes in binary systems, observational appearance Shakura, N.I.;Sunyaev, V.
  8. Astron. Astrophys v.180 Optical confirmation and high-resolution spectroscopy of the radio jet from the symbiotic star CH Cygni Solf, J.
  9. Publ. Korean Astron Soc. v.33 Viscosity and collisions of particles in accretion discs Yoo, K.H.