천문학회지 (Journal of The Korean Astronomical Society)

  • 제38권2호
  • /
  • Pages.121-124
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  • 2005
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  • 1225-4614(pISSN)
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  • 2288-890X(eISSN)
한국천문학회 (The Korean Astronomical Society)
권호 표지
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NUCLEAR SPIRALS IN NEARBY GALAXIES

  • ANN HONG BAE (Division of Science Education, Pusan National University)
  • 발행 : 2005.06.01
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⟨ 이전 논문 다음 논문 ⟩

초록

High resolution images of the nuclear regions of nearby galaxies show that nuclear spirals are preponderant in normal galaxies as well as in active galaxies. These nuclear spirals, especially the grand-design nuclear spirals are found to be formed by the gas flow driven by the bar. Hydrodynamical simulations exploring a wide range of parameter space show that the morphology of nuclear spirals depends not only on the inner dynamics but on the global dynamics resulting from the global mass distribution of galaxies. Thus, the nuclear morphology can be a diagnostic tool for the inner dynamics of galaxies when the global mass distribution is taken into account.

키워드

참고문헌

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피인용 문헌

  1. Central mass accumulation in nuclear spirals vol.3, pp.S245, 2007, https://doi.org/10.1017/S1743921308017547