Astronomy and Astrophysics – Astrophysics
Scientific paper
Jan 1995
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995apj...439l...5k&link_type=abstract
Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 439, no. 1, p. L5-L8
Astronomy and Astrophysics
Astrophysics
19
Binary Stars, Mathematical Models, Planetary Orbits, Pulsars, Stellar Orbits, Stellar Parallax, Annual Variations, Electron Density (Concentration), Solar Orbits, Time Measurement
Scientific paper
A complete theoretical description of the parallactic terms in the timing formula for a binary pulsar is presented. It is shown that the terms depend not only on the annual motion of Earth but also on the orbital motion of the binary pulsar as well. It is proved that measurements of the effect of orbital parallax can serve a useful purpose, both in determination of pulsar distances, and also in the measurement of companion masses. Estimates of expected magnitudes of the corresponding timing signals for the most appropriate binary pulsar candidates are tabulated, and prospects for the measurement of orbital parallaxes are discussed.
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