The ring nebula around the blue supergiant SBW1: pre-explosion snapshot of an SN 1987A twin

Year2013
JournalMonthly Notices of the Royal Astronomical Society
AuthorSmith, N., Arnett, W. D., Bally, J., Ginsburg, A., and Filippenko, A. V.
Bibcode2013MNRAS.429.1324S
TelescopeGS
InstrumentTRECS
PartnerUS
CountryUSA
Program IDGS-2009A-Q-6, GS-2008A-Q-30

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