The Geminga Pulsar and its Pulsar Wind Nebula

Details The Geminga Pulsar and its Pulsar Wind Nebula The Geminga Pulsar and its Pulsar Wind Nebula

Sep 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003cxo..prop.1476s&link_type=abstract

Chandra Proposal ID #05500988

Computer Science

Chandra Proposal Id #05500988

Scientific paper

The radio-quite rotation-powered pulsar Geminga is among the most enigmatic objects in the sky. X-ray observations have revealed a soft thermal component and a hard component usually interpreted as a power-law. Contamination from the putative pulsar-wind nebula (PWN) may contribute to the large uncertainties in the hard spectral component. We demonstrate that the PWN expected around this pulsar can be resolved with Chandra, which allows accurate measurement of the pulsar's spectrum. Timing for Geminga is currently possible only in the X-ray band. Therefore, we propose two observations of Geminga to detect the PWN, measure the uncontaminated pulsar spectrum, get timing to phase-connect to the previous X-ray data, and perform phase-resolved spectroscopy and energy-resolved timing.

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