High frequency radio observations of the composite historical SNR G11.2-0.3

Details High frequency radio observations of the composite historical SNR G11.2-0.3 High frequency radio observations of the composite historical SNR G11.2-0.3

May 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001aipc..565..271k&link_type=abstract

YOUNG SUPERNOVA REMNANTS: Eleventh Astrophysics Conference. AIP Conference Proceedings, Volume 565, pp. 271-274 (2001).

Astronomy and Astrophysics

Astrophysics

Supernova Remnants, Supernovae, Mass Loss And Stellar Winds

Scientific paper

The historical supernova remnant G11.2-0.3 shows evidence of an evolutionary gradient from ejecta dominance on one side to the dominance of the swept up material on the other. This change seems to be gradually implying an almost homogenous ambient medium structure with a density gradient. We found evidence for this behavior in the radio continuum (total power and polarization), the magnetic field structure, and the distribution of the soft X-ray emission. In the center we discovered a small flat spectrum source which is most likely a synchrotron nebula powered by the central pulsar. There are two jetlike extensions to the east and west best visible at lower frequencies indicating a collimated outflow of particles. .

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