Did SN 1989B Exhibit a Light Echo?

Details Did SN 1989B Exhibit a Light Echo? Did SN 1989B Exhibit a Light Echo?

2002-10-10

arxiv.org/abs/astro-ph/0210236v1

Astron.J. 125 (2003) 181

Astronomy and Astrophysics

Astrophysics

Accepted for publication in the Astronomical Journal

Scientific paper

10.1086/345516

The late light curves of SN 1989B exhibited an emission excess relative to other type Ia supernovae. We investigate whether this emission excess suggests light echo emission from this supernova, or rather intense background galaxy contamination at the location of the supernova. We conclude that stellar emission can better explain the late spectra, and that the emission excess is likely due to background contamination.

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