Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aas...20915008w&link_type=abstract
2007 AAS/AAPT Joint Meeting, American Astronomical Society Meeting 209, #150.08; Bulletin of the American Astronomical Society,
Astronomy and Astrophysics
Astronomy
Scientific paper
The SuperMACHO Project reported the discovery of three centuries-old light echo systems associated with already-known supernova remnants in the Dec 22 2005 issue of Nature. Our poster paper presents the results of Gemini South and CTIO 4m imaging and Gemini South spectroscopy of the light echo systems associated with the remnants 0519-69.0, 0509-67.5, and N103B (including 2006B spectroscopy if available). Each of these three remnants associated with light echo systems is believed to be the result of a SN Ia explosion. We also report the discovery of a fourth light echo system apparently unassociated with the above remnants. Supernova light scattered off of LMC ISM dust at a variety of azimuths provides an observational constraint on the anisotropy of each outburst.We estimate the range of "perspective differences" available for the three systems based on existing data. The prospects for future LMC supernova light echo discoveries will also be discussed.
Aguilera Claudio
Becker Andrew C.
Bergmann Marcel
Challis Peter
Clocchiatti Alejandro
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