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Adiabatic invariants in stellar dynamics. 2: Gravitational shockingA new theory of gravitational shocking based on time-dependent perturbation theory shows that the changes in energy and angular momentum due to a slowly varying disturbance are not exponentially small for stellar dynamical systems in general. It predicts significant shock heating by slowly varying perturbations previously thought to be negligible according to the adiabatic criterion. The theory extends the scenarios traditionally computed only with the impulse approximation and is applicable to a wide class of disturbances. The approach is applied specifically to the problem of disk shocking of star clusters.
Document ID
19950032393
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Weinberg, Martin D. (Univ. of Massachusetts, Amherst, MA United States)
Date Acquired
August 16, 2013
Publication Date
October 1, 1994
Publication Information
Publication: The Astronomical Journal
Volume: 108
Issue: 4
ISSN: 0004-6256
Subject Category
ASTROPHYSICS
Funding Number(s)
CONTRACT_GRANT: NSF PHY-89-04035
CONTRACT_GRANT: NAGW-2224
Distribution Limits
Public
Copyright
Other