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

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

2000-08-16

arxiv.org/abs/astro-ph/0008238v1

Astronomy and Astrophysics

Astrophysics

To be published in the proceedings of the conference: ``The Interstellar Medium in M31 and M33'' (E. M. Berkhuijsen and R. Bec

Scientific paper

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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