X-ray, Radio, and Optical Observations of Cassiopeia A

Details X-ray, Radio, and Optical Observations of Cassiopeia A X-ray, Radio, and Optical Observations of Cassiopeia A

Apr 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005xrrc.proce4.05d&link_type=abstract

"X-Ray and Radio Connections (eds. L.O. Sjouwerman and K.K Dyer) Published electronically by NRAO, http://www.aoc.nrao.edu/event

Computer Science

X-Ray, Radio, Supernova Remnants

Scientific paper

We have performed a multi-wavelength comparison of Cassiopeia A using Very Large Array, Hubble Space Telescope, and Chandra X-ray Observatory images. By separating components spectrally, we find clear associations between the emission at the three wavebands. We separate the emitting material into two components -- shocked circumstellar medium (CSM) and shocked ejecta, which show the same respective morphologies and proper motions in the different bands. In the shocked CSM, we find matched low-energy enhanced X-ray emission and optical quasi-stationary flocculi, and X-ray continuum-dominated emission matched with filamentary radio structures. In the shocked ejecta, we find matched silicon and iron dominated X-ray emission and optical fast-moving knots.

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