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Soliton Properties of Coupled g-Mode OscillationsSeveral features typical of solitons are also exhibited by stellar g-modes when coupled into "sets" that have unique rotation rates relative to the star. Enhanced nuclear burning due to weakly nonlinear amplitudes in a small portion of the stellar core holds each set together against dispersion. As the nonlinear regions of each set rotate past each other they have a complex interaction (shown in a video), yet emerge from this with their original wave forms. Other similarities with solitons we mentioned, including the physical origin of a phase shift. in longitude due to the interaction. These similarities suggest that a fully nonlinear derivation of g-mode sets may be able to show that their large amplitude regions approach true solitons.
Document ID
20070032802
Acquisition Source
Goddard Space Flight Center
Document Type
Conference Paper
Authors
Wolff, Charles L.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 23, 2013
Publication Date
January 1, 2007
Subject Category
Astronomy
Meeting Information
Meeting: American Astronomical Society 210 Meeting
Location: Honolulu, HI
Country: United States
Start Date: May 28, 2007
End Date: May 31, 2007
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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