A Search for Millisecond Pulsars in Spectroscopically-Selected Binaries

Details A Search for Millisecond Pulsars in Spectroscopically-Selected Binaries A Search for Millisecond Pulsars in Spectroscopically-Selected Binaries

Oct 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006atnf.prop..553a&link_type=abstract

ATNF proposal P558, Semester: October, 2006

Astronomy and Astrophysics

Astrophysics

Galactic, Parkes

Scientific paper

The SPY project aims to uncover double-degenerate binary systems through optical spectroscopy of 1500 known white dwarfs (WD) and sub-dwarf B (sdB) stars. We request 18 hours of Parkes telescope time to search for millisecond pulsations from the directions of three sdBs found by SPY to have unseen massive companions. The optical observations provide orbital data of sufficient precision to allow for correction of each putative pulsar's orbital motion, significantly improving our chances of detecting an accelerated neutron star's pulsations. Successful detection of just one new pulsar would increase by 50% the number of PSR-WD systems that are double-line binaries(where one of the "lines" is the pulsar clock), yielding a new mass measurement for a highly spun-up pulsar in addition to the many physical and astrophysical insights typically provided by millisecond pulsar systems.

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