A systematic search for millisecond pulsars

Details A systematic search for millisecond pulsars A systematic search for millisecond pulsars

Sep 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986phdt.........8s&link_type=abstract

Ph.D. Thesis Princeton Univ., NJ.

Computer Science

3

Binary Stars, Pulsars, Pulse Rate, Space Observations (From Earth), Companion Stars, Searching, Stellar Mass Accretion, Stellar Rotation

Scientific paper

A systematic search for pulsars was performed, covering approximately 300 square degrees of sky, with sensitivity to periods as short as 0.6 ms. We detected 19 known pulsars and 5 new ones, one of which is a millisecond pulsar--PSR 1855 + 09, with rotational period 5.3 ms and dispersion measure 13.3 pc cm(-3), indicating that it is a nearby object. It is evidently in a binary system, although its orbital parameters are not yet known with certainty. The sensitivity of our search is such that we can rule out the existence of a large population of high flux density pulsars such as PSR 1937 + 21. However, the possibility of a population of weaker objects, such as the previously known PSR 1953 + 29 and the new PSR 1855 + 09, is suggested. Our findings support the arguments for the origin of the short periods of these pulsars which rely on mass accretion from a companion object. Strategies for further searching are proposed.

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