Probing the Dust Structure in the LMC with Light Echoes

Details Probing the Dust Structure in the LMC with Light Echoes Probing the Dust Structure in the LMC with Light Echoes

Dec 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aas...209.8418d&link_type=abstract

2007 AAS/AAPT Joint Meeting, American Astronomical Society Meeting 209, #84.18; Bulletin of the American Astronomical Society, V

Astronomy and Astrophysics

Astronomy

Scientific paper

The SuperMACHO collaboration has discovered light echoes from four ancient supernovae (SNe) in the Large Magellanic Cloud using difference image analysis (Rest et. al, 2005). These light echoes offer one of the most effective means to probe the 3-D structure of the dust in the interstellar medium in the LMC, as they illuminate sheets and bands of the dust at different distances from the SN. As the light echos "move", they continuously map out different structures, providing the opportunity to map out large structures over time. We find that the light echoes cross-correlate very well with dust structures detected in the infrared in images from the Spitzer space telescope. We also cross-correlated these with structures found in the ATCA HI velocity maps.

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