Chasing the Magnetar-Pulsar Connection through a High-B Radio Pulsar

Details Chasing the Magnetar-Pulsar Connection through a High-B Radio Pulsar Chasing the Magnetar-Pulsar Connection through a High-B Radio Pulsar

Apr 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007atnf.prop..974t&link_type=abstract

ATNF proposal C1677, Semester: April, 2007

Other

Stellar, Galactic, Atca

Scientific paper

Among the many mysteries surrounding "magnetars", exotic manifestations of neutron stars thought to be powered by the decay of their ultra-high magnetic fields, is what makes them distinct from the large population of rotation-powered pulsars. Certainly, the presence of a strong B~1e14 G magnetic field, as observed in the anomalous X-ray pulsars (AXPs) and soft gamma repeaters (SGRs), is key. However, a growing number of rotation-powered pulsars show many magnetar-like characteristics, including B-fields that compare to, and in some cases exceed, that of AXPs. These may be the long-sought transistion objects between conventional pulsars and magnetars. We hope to explore their connection further by examining a high-B radio pulsar for another signature of magnetars: optical/IR emission. As an ordinary pulsar, it should be very faint at optical/IR wavelengths, but if it is governed by magnetar-like (ie. high-B dependant) emission properties, then we should detect optical/IR emission comparable to that seen in AXPs. To do this simple test, we require a position more precise than can be provided by pulsar timing, and seek the excellent spatial resolution possible with radio interferometry.

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