An update on the light echoes of SN 1987A.

Details An update on the light echoes of SN 1987A. An update on the light echoes of SN 1987A.

Dec 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988msngr..54...28r&link_type=abstract

The Messenger, vol. 54, p. 28-28

Physics

Scientific paper

The ring shaped light echoes found earlier this year around the supernova SN 1987A in the LMC (The Messenger 52, 13) have been under close monitoring ever since. The picture shows an artificially enhanced image of the rings as observed by H. Pedersen and J. Melnick on the nights 29th through 31 st of October 1988, using a CCO camera in the Gascoigne adapter at the prime focus of the 3.6-m telescope. The resolution is 0.58 arcsec per pixel and the seeing was about 1.2 arcsec. In order to enhance the contrast, the photo shows the ratio of averages of five 3-minute exposures in Sand V each.

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