Hidden supernova remnants in the Large Magellanic Cloud H II complex N44

Details Hidden supernova remnants in the Large Magellanic Cloud H II complex N44 Hidden supernova remnants in the Large Magellanic Cloud H II complex N44

Sep 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993apj...414..213c&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 414, no. 1, p. 213-218.

Astronomy and Astrophysics

Astronomy

56

H Ii Regions, Magellanic Clouds, Massive Stars, Supernova Remnants, X Ray Sources, Heao 2, Interstellar Matter, Sky Surveys (Astronomy)

Scientific paper

We have obtained ROSAT PSPC observations of N44, one of the largest H II complexes in the Large Magellanic Cloud. The X-ray emission mostly fails within the ionized shell structures in N44. We find that one faint shell is a classical supernova remnant overlooked by previous surveys. If we model the two largest shells as pressure-driven superbubbles, the predicted X-ray luminosity falls far below the observed value. Instead, we show that off-center supernova remnants hitting superbubble shells can explain the excess X-ray emission.

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