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Systematic Astrometric Errors in Pulsar Timing

Published online by Cambridge University Press:  19 July 2016

L. Fairhead
L. Fairhead*
Affiliation:
Bureau des Longitudes, 77 Avenue Denfert-Rochereau 75014 Paris, France Department of Astronomy, University of California Berkeley, CA 94720, USA

Abstract

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A new analysis of the timing data acquired on the fast pulsar PSR1937+214 is presented. Parameters are evaluated with various models based on two ephemerides, two atomic time scales and two TT—TB time transformations. Comparisons are carried out with results from other programs. We provide evidence that systematic errors induced by the model adopted are 5 to 10 times larger than the formal uncertainties calculated by the fitting procedure. Great care must thus be taken when using results from different millisecond pulsars timing programs for accurate astrometric purposes.

Type
Part 3: Concepts, Definitions, Models
Information
Symposium - International Astronomical Union , Volume 141: Inertial Coordinate System on the Sky , 1990 , pp. 205 - 212
Copyright
Copyright © Kluwer 1990 

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