Supernova remnants in the magellanic clouds. VII. Infrared emission from supernova remnants

R. M. Williams, Y. H. Chu, R. Gruendl

Research output: Contribution to journalArticle

Abstract

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.

Original languageEnglish (US)
Pages (from-to)1877-1889
Number of pages13
JournalAstronomical Journal
Volume132
Issue number5
DOIs
StatePublished - Nov 1 2006

Keywords

  • ISM: individual (N11L, N44, N49, N206, N63A, N157B)
  • Supernova remnants

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

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