Further observations of the light echoes from SN 1987 A

Details Further observations of the light echoes from SN 1987 A Further observations of the light echoes from SN 1987 A

Mar 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990a%26a...229..427d&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 229, no. 2, March 1990, p. 427-430.

Astronomy and Astrophysics

Astrophysics

Interstellar Matter, Light Scattering, Supernova 1987A, Echoes, Galactic Radiation, Magellanic Clouds

Scientific paper

Further direct observations of the light echoes from SN 1987 A were obtained on November 12 1988 with the 3.6-m telescope and EFOSC at ESO. In agreement with predictions made from earlier observations, the radii of the two light rings are measured to be 43.3 and 72.5 arcsec. However, a noticeable diaplacement of the center of the outer ring by 2.6 arcsec to the NE from the SN position is also reported. Application of the model of planar-like sheets of material located between the SN and the observer leads to improved results.

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