Astronomy and Astrophysics – Astronomy
Scientific paper
Feb 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010head...11.1805s&link_type=abstract
American Astronomical Society, HEAD meeting #11, #18.05; Bulletin of the American Astronomical Society, Vol. 41, p.686
Astronomy and Astrophysics
Astronomy
Scientific paper
This paper describes a Chandra observation of the supernova remnant SNR 0540-697 within the HII complex N159 in the Large Magellanic Cloud. Scattering from the nearby bright source LMC X-1, which obscures the western edge of the remnant, has been removed. Larger than previously believed, the 2.0 X 2.8 arcmininute remnant is defined by optical filaments and two lobes of X-ray emission. A band of intervening material absorbs X-rays from the central part of the remnant. The N Lobe of the remnant is relatively bright and well defined, while emission from the S Lobe is much weaker. There is structure within the N Lobe but the outer shell is not prominent in X-rays. The X-ray spectrum is thermal with some emission lines. The derived physical parameters of this SNR are consistent with those expected for older remnants.
There is also diffuse thermal X-ray emission north of N159 extending into N160, evidence for a larger remnant or bubble.
Chu Yan-Yi
Dickel John
Gruendl Robert
Seward Frederick D.
Williams Richard
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