Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 1996
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996aas...188.6107w&link_type=abstract
American Astronomical Society, 188th AAS Meeting, #61.07; Bulletin of the American Astronomical Society, Vol. 28, p.924
Astronomy and Astrophysics
Astronomy
Scientific paper
The Large Magellanic Cloud (LMC) supernova remnant (SNR) DEM L 316 is of considerable interest, as it shows two connecting shells at radio and optical wavelengths. This morphology suggests that DEM L 316 is in fact two SNRs, which may or may not be spatially connected. We have observed the DEM L 316 remnants at optical, radio, and X-ray wavelengths, in order to address the question of whether the SNRs are interacting, and if so, whether a tunnel might have formed between the remnants, allowing them to equilibrate. Several pieces of evidence suggest that the two remnants in DEM L 316 are in fact colliding: the connecting shell morphologies at optical and radio wavelengths, enhanced [O III] emission at the juncture between the shells, enhanced X-ray emission from one shell at that juncture, and a change in the structure of the magnetic field near the interaction region. While we cannot rule out the possibility of tunnel formation between the remnants, the difference in the density estimates for the two remnants suggests that they have not equilibrated.
Beyer Ross A.
Chu Y.-H. Y.-H.
Dickel John R.
Petre Rob
Smith Christopher R.
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