Return to search

DISAPPEARANCE OF THE PROGENITOR OF SUPERNOVA iPTF13bvn

Supernova (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.

Identiferoai:union.ndltd.org:arizona.edu/oai:arizona.openrepository.com:10150/621404
Date06 July 2016
CreatorsFolatelli, Gastón, Van Dyk, Schuyler D., Kuncarayakti, Hanindyo, Maeda, Keiichi, Bersten, Melina C., Nomoto, Ken’ichi, Pignata, Giuliano, Hamuy, Mario, Quimby, Robert M., Zheng, WeiKang, Filippenko, Alexei V., Clubb, Kelsey I., Smith, Nathan, Elias-Rosa, Nancy, Foley, Ryan J., Miller, Adam A.
ContributorsUniv Arizona, Steward Observ
PublisherIOP PUBLISHING LTD
Source SetsUniversity of Arizona
LanguageEnglish
Detected LanguageEnglish
TypeArticle
Rights© 2016. The American Astronomical Society. All rights reserved.
Relationhttp://stacks.iop.org/2041-8205/825/i=2/a=L22?key=crossref.dc9d043f977feeb75916744ebb8784c7

Page generated in 0.0018 seconds