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Nebular Spectroscopy of Kepler's Brightest Supernova

Dimitriadis, G.; Rojas-Bravo, C.; Foley, Ryan J; Piro, Anthony L; Brown, J. S.; Guhathakurta, P.; Quirk, A. C. N.; Rest, A.; Strampelli, G; Tucker, Brad; Villar, A.


We present late-time (∼240–260 days after peak brightness) optical photometry and nebular (+236 and +264 days) spectroscopy of SN 2018oh, the brightest supernova (SN) Ia observed by the Kepler telescope. The Kepler/K2 30 minute cadence observations started days before explosion and continued past peak brightness. For several days after explosion, SN 2018oh had blue “excess” flux in addition to a normal SN rise. The flux excess can be explained by the interaction between the SN and a...[Show more]

CollectionsANU Research Publications
Date published: 2019
Type: Journal article
Source: Astrophysical Journal Letters
DOI: 10.3847/2041-8213/aaf9b1
Access Rights: Open Access


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