PSRJ1832+0029: a unique target for pulsar emission physics

Details PSRJ1832+0029: a unique target for pulsar emission physics PSRJ1832+0029: a unique target for pulsar emission physics

Sep 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007cxo..prop.2411l&link_type=abstract

Chandra Proposal ID #09500899

Computer Science

Chandra Proposal Id #09500899

Scientific paper

We have discovered very unusual behavior in PSR J1832+0029, a 533-ms radio pulsar which switches between on and off states on timescales of several hundred days. Remarkably, the pulsar's spin-down rate almost doubles when the radio emission is on. This is even more dramatic than observed for PSR B1931+24 for which no satisfactory theory presently exists. Unlike PSR B1931+24, J1832+0029 is nearby (1.3 kpc) and an excellent target for X-ray detection. Here we request a 20 ks ACIS TOO to study the X-ray emission of PSR J1832+0029 in its on or off state, triggered by radio monitoring following a companion GO proposal. The observations would distinguish between radio emission quenching mechanisms that are either intrinsic to the pulsar or caused by accretion from an orbiting companion.

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