Evidence of a pulsar wind nebula in supernova remnant IC 443

Details Evidence of a pulsar wind nebula in supernova remnant IC 443 Evidence of a pulsar wind nebula in supernova remnant IC 443

May 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001aipc..565..341o&link_type=abstract

YOUNG SUPERNOVA REMNANTS: Eleventh Astrophysics Conference. AIP Conference Proceedings, Volume 565, pp. 341-344 (2001).

Astronomy and Astrophysics

Astrophysics

Supernova Remnants, Pulsars, Mass Loss And Stellar Winds

Scientific paper

New Chandra X-Ray Observatory and Very Large Array observations of the hard X-ray feature along the southern edge of the supernova remnant IC 443 have revealed a comet-shaped nebula of hard emission with a soft X-ray point source at its apex. Based on the X-ray spectrum, X-ray and radio morphology, and the radio polarization properties, we argue that this object is a synchrotron nebula powered by the compact source. The derived parameters of the system favor an interpretation in which the central object is a young, energetic neutron star physically associated with IC 443. The cometary morphology of the nebula originates from the supersonic motion of the pulsar (VPSR~=250+/-50 km s-1), which causes the relativistic wind of the pulsar to terminate in a bow shock and trail behind as a synchrotron tail. This velocity is consistent with an age of 30,000 years for the SNR and its associated pulsar. .

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