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A near-IR [Fe II] line imaging survey of supernova remnants in M33

T. Morel·R. Doyon·N. St-Louis
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Abstract

We report on the first near-IR [Fe II] line imaging survey of extragalactic SNRs. Observations of a sample of 42 objects drawn from an optically-selected catalogue of SNRs in M33 provide evidence for a wide range in the [Fe II] 1.644 microns luminosities. This can be understood as being primarily due to variations in the chemical abundances and density of the local ISM, although shock conditions may also play a significant role. We briefly discuss how these results may be used to better calibrate the supernova rate of star-forming galaxies.

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T. Morel, R. Doyon, N. St-Louis. 2000-08-16. A near-IR [Fe II] line imaging survey of supernova remnants in M33. https://arxiv.org/abs/astro-ph/0008238

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