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IC443 - A Thermal Composite Remnant


This thermal composite remnant is a cross between a shell-like and Crab-like remnant. To an x-ray astronomer, a composite remnant is one which shows shell- type emission in the radio and plerionic emission in the x-ray. An example of this type of remnant is IC 433.html (below). In this image, red shows radio emission and blue shows X-ray emission. Theory usually predicts that the dominant X-ray emission would be found on the outside rim of the remnant, where the forward shock is located.

The spectrum of the x-rays from the center are thermal, or line dominated.

(Image courtesy of Jonathan Keohane).

image of SNR IC443

Return to the Thermal research page

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Imagine the Universe! is a service of the High Energy Astrophysics Science Archive Research Center (HEASARC), Dr. Alan Smale (Director), within the Astrophysics Science Division (ASD) at NASA's Goddard Space Flight Center.

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Project Leader: Dr. Barbara Mattson
Curator: J.D. Myers
Responsible NASA Official: Phil Newman
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This page last updated: Monday, 03-Oct-2005 16:15:21 EDT