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MPS Seminar: Theory of dipolar mixed modes of red-giant stars (M. Takata)

  • Date: Sep 14, 2018
  • Time: 10:30 - 11:30
  • Speaker: Masao Takata
  • Department of Astronomy, School of Science, University of Tokyo, Japan
  • Location: MPS
  • Room: Aquila + Bootes
  • Host: Saskia Hekker
I will talk about my recent effort in developing the asymptotic theory of solar-like oscillations in red-giant stars. The asymptotic parameters that explain the frequency spectrum include not only the large frequency separation and the period spacing but also the coupling factor and the gravity offset, to which I will pay special attention. I will particularly discuss the reason why we sometimes observe the coupling factor larger than 1/4, and how the physical origins of the gravity offset can be identified.

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