S20B0094abst
S20B0094
Supernova remnants (SNRs) play an important role in the evolution and formation of galaxies. They contribute to the chemical enrichment and mixing processes of the interstellar medium (ISM). They are prime objects to determine the star formation rate in galaxies. Studying SNRs across the electromagnetic spectrum allows us to probe different SNRs evolutionary phases and ISM environments. We propose to use MOIRCS to get [Fe II]λ1.644µm images of a sample of 7 nearby galaxies hosting more than 400 extragalactic SNRs. The [Fe II] line is frequently used to study the SNR-shock phase, but its full relation with other SNR indicators is still poorly established. MOIRCS [Fe II] data will be compared to the Chandra-X-ray data and to our SITELLE/CFHT optical spectro-imaging data, covering the whole galaxy, in order to: (1) Qualify how good the [Fe II] emission is for the identification of the optical SNRs, taking into account the optical information for the extinction, the H II regions, and the diffuse ionized gas; (2) Investigate relations between the strength and morphology of the [Fe II] emission and the optical properties of the ionized gas in different galactic environments; and (3) Check for age delays between the [Fe II]-shock phase and the optical SNR-radiative phase.
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