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ROSAT Guest Observer Facility

G18.9-1.1

G18.9-1.1
Image credit: Max-Planck-Institut für extraterrestrische Physik (MPE)

This is a PSPC image of the SNR G18.9-1.1, a partial shell 33 arcminutes in diameter. The star that created it exploded some 2000-6000 years ago releasing a stellar wind that may have created the low density medium into which the remnant is presently expanding. Present X-ray observations provide an upper limit for the luminosity of approximately 10^33 ergs/s.

Curator: Michael Arida (SP Sys); arida@milkyway.gsfc.nasa.gov
HEASARC Guest Observer Facility


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This file was last modified on Thursday, 04-Oct-2007 12:10:11 EDT

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