천문학회지 (Journal of The Korean Astronomical Society)

  • 제33권3호
  • /
  • Pages.173-175
  • /
  • 2000
  • /
  • 1225-4614(pISSN)
  • /
  • 2288-890X(eISSN)
한국천문학회 (The Korean Astronomical Society)
권호 표지

강착원반에서 기체의 점성과 충돌

VISCOSITY AND COLLISIONS OF PARTICLES IN ACCRETION DISKS

  • 유계화 (이화여자대학교 과학교육과)
  • YOO KYE WHA (Department of Science Education, Ewha Womans University)
  • 발행 : 2000.12.01
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초록

The time-dependence of an $\alpha$-disk model under the influence of collisions of particles is examined. Collisions with viscosity tend to take away angular momentum. Both effects cause the disk to rotate more rapidly. The disk gradually contracts with increasing time.

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