Supernova Remnants in the Magellanic Clouds. VII. Infrared Emission from SNRs

Details Supernova Remnants in the Magellanic Clouds. VII. Infrared Emission from SNRs Supernova Remnants in the Magellanic Clouds. VII. Infrared Emission from SNRs

2006-07-26

arxiv.org/abs/astro-ph/0607598v1

Astron.J.132:1877-1889,2006

Astronomy and Astrophysics

Astrophysics

11 pages including 10 figures. Accepted for publication in the Astronomical Journal, Nov. 26 issue (vol. 132). Full-resolution

Scientific paper

10.1086/507839

We have used the instruments on the Spitzer Space Telescope to study the Large Magellanic Cloud supernova remnants (SNRs) N11L, N44, N49, N206, N63A, and N157B. The two large SNRs N44 and N206 were not detected in any IRAC or MIPS wavebands; the remainder were detected at one or more wavelengths. In particular, the SNRs N49 and N63A each had features that were evident in all available IRAC and MIPS bands. Each of these two also displayed faint limb emission in the MIPS 24 micron band only. IRS spectra obtained for the N49 SNR showed a number of prominent lines, with little continuum contribution. We therefore suggest that N49, and possibly N63A, are dominated by line emission, with thermal emission from hot dust being at most a secondary component.

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