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Spectroscopy and photometry of the type II supernova SN 1988Z are presented. This supernova was most unusual. Its characteristics include a high luminosity at maximum light, unusually slow fading at late times, and strong narrow emission lines arising from dense circumstellar material. Broad emission features with V ∼ 10000 km/s persisted for over a year and no absorption lines or P-Cygni profiles were observed, which is also exceptional for a type II supernova.
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Stathakis et al. (1991) studied this question.
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