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Anisotropies and the Power Requirements for Galactic Cosmic Rays

Published online by Cambridge University Press:  05 March 2013

R. W. Clay ,
M.-A. McDonough ,
A. G. K. Smith  and
B. R. Dawson
R. W. Clay*
Affiliation:
Department of Physics and Mathematical Physics, University of Adelaide, Adelaide, SA 5005, Australia
M.-A. McDonough
Affiliation:
Department of Physics and Mathematical Physics, University of Adelaide, Adelaide, SA 5005, Australia
A. G. K. Smith
Affiliation:
Department of Physics and Mathematical Physics, University of Adelaide, Adelaide, SA 5005, Australia
B. R. Dawson
Affiliation:
Department of Physics and Mathematical Physics, University of Adelaide, Adelaide, SA 5005, Australia
*
[email protected]
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Abstract

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Measurements of cosmic ray directional properties at about 1015 eV in both northern and southern hemispheres confirm that those particles have a unidirectional anisotropy and are flowing along the direction of our spiral arm from the inner Galactic regions. On the basis of diffusive cosmic ray flow along the Galactic arms, the power required for the Galaxy to maintain this flow is below 1030 W.

Keywords

ISM: cosmic rays
Type
Research Article
Information
Publications of the Astronomical Society of Australia , Volume 15 , Issue 2 , 1998 , pp. 208 - 210
Copyright
Copyright © Astronomical Society of Australia 1998

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