We have used the instruments on the Spitzer Space Telescope to study the Large Magellanic Cloud supernova remnants (SNRs) N11L, N44, N49, N206, N63 A, and N157B. The two large SNRs N44 and N206 were not detected in any Spitzer IRAC or MIPS wave bands; the remainder were detected at one or more wavelengths. In particular, the SNRs N49 and N63 A 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 μm band only. Spitzer 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.
- ISM: individual (N11L, N44, N49, N206, N63A, N157B)
- Supernova remnants
ASJC Scopus subject areas
- Astronomy and Astrophysics
- Space and Planetary Science