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Dynamics of the Crab Nebula

Published online by Cambridge University Press:  14 August 2015

Virginia Trimble
Virginia Trimble*
Affiliation:
Institute of Theoretical Astronomy, University of Cambridge, Cambridge, U.K.

Abstract

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Studies of the proper motion of many filaments in the Crab Nebula show that the expansion centre does not coincide with the present position of the pulsar NP 0532. Possible reasons for this difference are discussed. Estimates of the turbulent velocity within the nebula indicate that it lies in the range 100 to 300 km sec-1. An analysis of the present expansion rate of the nebula indicates a convergence at 1140 ± 10 AD. The acceleration implied in this result could arise from magnetic or relativistic electron pressure.

Type
Session 1
Information
Symposium - International Astronomical Union , Volume 46: The Crab Nebula , 1971 , pp. 12 - 21
Copyright
Copyright © Reidel 1971 

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