An observation of IC 443 in the forbidden coronal lambda 6374 line

Abstract

We have obtained a photometrically calibrated CCD image of the northeastern sector of IC 443 in the [Fex] X6374 line. It corroborates the spatial distribution of the emission determined by Woodgate, Lucke, and Socker (1979). The red line emission appears in our data to be patchy on a scale smaller than their resolution.

Fabry-Perot Observations of [FeX] in the Cygnus Loop and IC443

“…They report a peak brightness in [FeX] of 1.3 10" erg cm" s~~ sr~ somewhat inside the filaments, close to the maximum X-ray emission (Petre et al, 1983). Gensheimer and Teske (1987) obtained a CCD image (in the line) of the same area. As in the-Xygnus Loop, their data indicate that locally brighter features (up to 5 10~ erg cm -s~ sr~ ) appear when a better spatial resolution is achieved.…”