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A strange supernova discovery by Subaru/Hyper Suprime-Cam

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A paper on a strange supernova by Dr. Takashi Moriya was picked up by phys.org.
An unusual supernova HSC16aayt (SN 2016jiu) was discovered by the Subaru/Hyper Suprime-Cam SSP transient survey. While usual supernovae reach their peak luminosity in about a month, HSC16aayt had an unusually long rising time lasting for more than three months. It showed signatures of the interaction between supernova ejecta and dense circumstellar matter. An unusual circumstellar property of the progenitor shortly before the explosion is likely related to the unique feature of this supernova.
See the webpage of phys.org for the details.

HSC16aay is a Type IIn supernova, study suggests
New research presented by an international team of astronomers suggests that a recently detected transient, designated HSC16aay, is a Type IIn supernova. A rese...

This paper was accepted by The Astrophysical Journal [arXiv]

Contact:
Takashi Moriya [personal website]

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