Van Dyk, Schuyler D.
Bersten, Melina C.
Quimby, Robert M.
Filippenko, A. V.
Clubb, Kelsey I.
Foley, Ryan J.
Miller, Adam A.
AffiliationUniv Arizona, Steward Observ
Keywordsgalaxies: individual (NGC 5806)
supernovae: individual (iPTF13bvn)
MetadataShow full item record
PublisherIOP PUBLISHING LTD
CitationDISAPPEARANCE OF THE PROGENITOR OF SUPERNOVA iPTF13bvn 2016, 825 (2):L22 The Astrophysical Journal
JournalThe Astrophysical Journal
Rights© 2016. The American Astronomical Society. All rights reserved.
Collection InformationThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at email@example.com.
AbstractSupernova (SN) iPTF13bvn in NGC 5806 was the first Type Ib SN to have been tentatively associated with a progenitor in pre-explosion images. We performed deep ultraviolet (UV) and optical Hubble Space Telescope observations of the SN site similar to 740 days after explosion. We detect an object in the optical bands that is fainter than the pre-explosion object. This dimming is likely not produced by dust absorption in the ejecta; thus, our finding confirms the connection of the progenitor candidate with the SN. The object in our data is likely dominated by the fading SN, implying that the pre-SN flux is mostly due to the progenitor. We compare our revised pre-SN photometry with previously proposed models. Although binary progenitors are favored, models need to be refined. In particular, to comply with our deep UV detection limit, any companion star must be less luminous than a late-O star or substantially obscured by newly formed dust. A definitive progenitor characterization will require further observations to disentangle the contribution of a much fainter SN and its environment.
VersionFinal published version
SponsorsSTScI [GO-13684, GO-13822, AR-14295]; NASA [NAS5-26555, HST-HF-51325.01, NAS 5-26555]; NSF [AST-1211916, AST-1518052]; TABASGO Foundation (KAIT and research support); Sylvia & Jim Katzman Foundation; Clark and Sharon Winslow; Christopher R. Redlich Fund; WPI Initiative MEXT (Japan); Japan Society for the Promotion of Science (JSPS) KAKENHI [26800100, 23224004, 26400222]; JSPS Open Partnership Bilateral Joint Research Project between Japan and Chile; Millennium Institute of Astrophysics [IC120009]; FONDECYT ; PRIN-INAF; Alfred P. Sloan Foundation