Hidden supernova remnants in the large magellanic cloud H II complex N44

You Hua Chu, Mordecai Mark Mac Low, Guillermo Garcia-Segura, Bart Wakker, Robert C. Kennicutt

Research output: Contribution to journalArticlepeer-review


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 falls 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.

Original languageEnglish (US)
Pages (from-to)213-218
Number of pages6
JournalAstrophysical Journal
Issue number1
StatePublished - Sep 1 1993


  • H II regions
  • Magellanic Clouds
  • Supernova remnants
  • X-rays: interstellar

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science


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