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

Bibcode
1993ApJ...414..213C
DOI
10.1086/173069
Kennicutt, Robert C., Jr.; Wakker, Bart; Garcia-Segura, Gullermo; Mac Low, Mordecai-Mark; Chu, You-Hua
Bibliographical reference

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

Advertised on:
9
1993
Journal
Astrophysical Journal
Number of authors
5
IAC number of authors
1
Citations
70
Refereed citations
63
Description
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.
Type
Refereed
H II regions
Magellanic Clouds
Supernova remnants

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