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Asymmetries in the Galactic Distribution of Pulsars

Published online by Cambridge University Press:  14 August 2015

Alice K. Harding
Alice K. Harding*
Affiliation:
Laboratory for High Energy Astrophysics, NASA Goddard Space Flight Center

Extract

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The distribution of pulsars in galactocentric radius and z distance has been determined for opposite halves of the Galaxy, using data on 328 pulsars from three surveys. The distributions in galactocentric radius are found to be significantly different at positive and negative longitudes, although both show strong peaks between 5 and 6 kpc. There is also some indication that pulsars are located preferentially along spiral arms. Distributions in the z component of dispersion measure above and below the galactic plane also show asymmetry, with higher dispersion occurring at negative z. This may imply the existence of a narrow (~ 100 pc), high electron density layer below the plane of the Sun in the inner galaxy.

Type
X. Galactic Distribution of Pulsars
Information
Symposium - International Astronomical Union , Volume 95: Pulsars , 1981 , pp. 439 - 443
Copyright
Copyright © Reidel 1981 

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