Time variability of pulsar dispersion measures

Details Time variability of pulsar dispersion measures Time variability of pulsar dispersion measures

Nov 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991apj...382l..27p&link_type=abstract

Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 382, Nov. 20, 1991, p. L27-L30.

Astronomy and Astrophysics

Astrophysics

40

Cosmic Plasma, Interstellar Matter, Pulsars, Dispersion, Electron Density (Concentration), H Alpha Line, H Ii Regions, Plasma Turbulence, Stellar Winds, Supernova Remnants

Scientific paper

In order to monitor changes in the interstellar electron density, 47-
and 430-MHz timing observations of seven pulsars were conducted once a
month for 2 yr. DM variations were detected toward six of the seven
objects. The rms variations were largest for the most distant pulsars,
confirming that the fluctuations were indeed interstellar.

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