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The electron density in the plane of the Galaxy

Published online by Cambridge University Press:  04 August 2017

J. M. Weisberg ,
J. M. Rankin  and
V. Boriakoff
J. M. Weisberg
Affiliation:
Department of Physics, Princeton University
J. M. Rankin
Affiliation:
Department of Physics, University of Vermont
V. Boriakoff
Affiliation:
NAIC, Cornell University

Extract

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Pulsars provide probably the best probes of electron density in the plane of the Galaxy. The dispersion measure, the path integral of electron density along the line of sight from the pulsar to Earth, ∫ neds, is directly measurable from multi-frequency pulse-timing observations. The distance to a pulsar, d, can be estimated from its HI absorption and emission spectra. The mean electron density along the line of sight is then just <ne> = ∫ neds/d.

Type
PART II: COMPOSITION, STRUCTURE AND KINEMATICS
Information
Symposium - International Astronomical Union , Volume 106: The Milky Way Galaxy , 1985 , pp. 181 - 182
Copyright
Copyright © Reidel 1985 

References

Ables, J.G., and Manchester, R.N.: 1976, Astron. Astrophys. 50, pp. 177–184 Google Scholar
Weisberg, J.M., Rankin, J., and Boriakoff, V.: 1980, Astron. Astrophys. 88, pp. 84–93 Google Scholar