JPL pulsar timing observations. IV - Excess phase noise

Details JPL pulsar timing observations. IV - Excess phase noise JPL pulsar timing observations. IV - Excess phase noise

Sep 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986apjs...62...81d&link_type=abstract

Astrophysical Journal Supplement Series (ISSN 0067-0049), vol. 62, Sept. 1986, p. 81-107. NASA-supported research.

Astronomy and Astrophysics

Astronomy

18

Binary Stars, Periodic Variations, Pulsars, Stellar Activity, Ephemeris Time, Geocentric Coordinates, Radio Astronomy, Tables (Data)

Scientific paper

Previously published tables of geocentric arrival times for 24 pulsars covering a 12 year span are extended here to 14.5 years. The list of pulsars is extended by nine, most of which were observed for about 4 years. Known positins of these new objects are confirmed, and limits on the proper motions are obtained. Large phase excursions in PSR 0525 + 21 are found. The orbital parameters of the binary pulsar 0820 + 02 are tentatively confirmed. Short-term timing noise in excess of that expected from receiver considerations alone is established. Variations in the timing residuals for the original 24 pulsars are analyzed for correlations with other observable parameters. Little significant correlation with changes in pulse shape or energy or with the drift correction is found on time scales of 500 pulses or longer.

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