dc.contributor.author | Nicholl, M. | |
dc.contributor.author | Berger, E. | |
dc.contributor.author | Smartt, S. J. | |
dc.contributor.author | Margutti, R. | |
dc.contributor.author | Kamble, A. | |
dc.contributor.author | Alexander, K. D. | |
dc.contributor.author | Chen, T.-W. | |
dc.contributor.author | Inserra, C. | |
dc.contributor.author | Arcavi, I. | |
dc.contributor.author | Blanchard, P. K. | |
dc.contributor.author | Cartier, R. | |
dc.contributor.author | Chambers, K. C. | |
dc.contributor.author | Childress, M.J. | |
dc.contributor.author | Chornock, R. | |
dc.contributor.author | Cowperthwaite, P. S. | |
dc.contributor.author | Drout, M. | |
dc.contributor.author | Flewelling, H. A. | |
dc.contributor.author | Fraser, M. | |
dc.contributor.author | Gal-Yam, A. | |
dc.contributor.author | Galbany, L. | |
dc.contributor.author | Harmanken, J. | |
dc.contributor.author | Holoien, T. W.-S. | |
dc.contributor.author | Hosseinzadeh, G. | |
dc.contributor.author | Howell, D. A. | |
dc.contributor.author | Huber, M. E. | |
dc.contributor.author | Jerkstrand, A. | |
dc.contributor.author | Kankare, E. | |
dc.contributor.author | Kochanek, C. S. | |
dc.contributor.author | Lin, Z.-Y. | |
dc.contributor.author | Lunnan, R. | |
dc.contributor.author | Magnier, E. A. | |
dc.contributor.author | Maguire, K. | |
dc.contributor.author | McCully, C. | |
dc.contributor.author | Metzger, B. D. | |
dc.contributor.author | Milisavljevic, D. | |
dc.contributor.author | Mitra, A. | |
dc.contributor.author | Reynolds, T. | |
dc.contributor.author | Saario, J. | |
dc.contributor.author | Shappee, B. J. | |
dc.contributor.author | Smith, K. W. | |
dc.contributor.author | Valenti, S. | |
dc.contributor.author | Villar, V. A. | |
dc.contributor.author | Waters, C. | |
dc.contributor.author | Young, D. R. | |
dc.contributor.author | McDonald, Michael A. | |
dc.date.accessioned | 2017-01-20T15:57:33Z | |
dc.date.available | 2017-01-20T15:57:33Z | |
dc.date.issued | 2016-07 | |
dc.date.submitted | 2016-05 | |
dc.identifier.issn | 1538-4357 | |
dc.identifier.issn | 0004-637X | |
dc.identifier.uri | http://hdl.handle.net/1721.1/106552 | |
dc.description.abstract | We present observations of SN 2015bn (=PS15ae = CSS141223-113342+004332 = MLS150211-113342+004333), a Type I superluminous supernova (SLSN) at redshift z = 0.1136. As well as being one of the closest SLSNe I yet discovered, it is intrinsically brighter (M[subscript U] ≈ -23.1) and in a fainter galaxy (M[subscript B] ≈ -16.0) than other SLSNe at z ∼ 0.1. We used this opportunity to collect the most extensive data set for any SLSN I to date, including densely sampled spectroscopy and photometry, from the UV to the NIR, spanning −50 to +250 days from optical maximum. SN 2015bn fades slowly, but exhibits surprising undulations in the light curve on a timescale of 30–50 days, especially in the UV. The spectrum shows extraordinarily slow evolution except for a rapid transformation between +7 and +20–30 days. No narrow emission lines from slow-moving material are observed at any phase. We derive physical properties including the bolometric luminosity, and find slow velocity evolution and non-monotonic temperature and radial evolution. A deep radio limit rules out a healthy off-axis gamma-ray burst, and places constraints on the pre-explosion mass loss. The data can be consistently explained by a ≳ 10 M [subscript ⊙] stripped progenitor exploding with ∼10 [superscript 51] erg kinetic energy, forming a magnetar with a spin-down timescale of ~20 days (thus avoiding a gamma-ray burst) that reheats the ejecta and drives ionization fronts. The most likely alternative scenario—interaction with ~20 M [subscript ⊙] of dense, inhomogeneous circumstellar material—can be tested with continuing radio follow-up. | en_US |
dc.description.sponsorship | United States. National Aeronautics and Space Administration. (Grant No. NNX08AR22G) | en_US |
dc.description.sponsorship | National Science Foundation (U.S.) (Grant No. AST-1238877) | en_US |
dc.description.sponsorship | United States. National Aeronautics and Space Administration. (Grant No. NNX12AR65G) | en_US |
dc.description.sponsorship | United States. National Aeronautics and Space Administration. (Grant No. NNX14AM74G) | en_US |
dc.description.sponsorship | Ernest Rutherford Fellowship | en_US |
dc.description.sponsorship | United States. National Aeronautics and Space Administration. (Hubble Fellowship grant HF-51348.001) | en_US |
dc.description.sponsorship | United States. Department of Energy. (grant number DE-FG02-97ER25308) | en_US |
dc.description.sponsorship | National Science Foundation (U.S.) (grant AST-1410950) | en_US |
dc.description.sponsorship | National Science Foundation (U.S.) (grant AST-0908816) | en_US |
dc.description.sponsorship | National Science Foundation (U.S.) (AST-1515927) | en_US |
dc.description.sponsorship | National Science Foundation (U.S.) (grant AST-1515876) | en_US |
dc.description.sponsorship | National Science Foundation (U.S.) (grant DGE1144152) | en_US |
dc.description.sponsorship | National Science Foundation (U.S.) (grant 1313484) | en_US |
dc.language.iso | en_US | |
dc.publisher | IOP Publishing | en_US |
dc.relation.isversionof | http://dx.doi.org/10.3847/0004-637x/826/1/39 | en_US |
dc.rights | Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. | en_US |
dc.source | American Astronomical Society | en_US |
dc.title | SN 2015bn: A DETAILED MULTI-WAVELENGTH VIEW OF A NEARBY SUPERLUMINOUS SUPERNOVA | en_US |
dc.type | Article | en_US |
dc.identifier.citation | Nicholl, M., E. Berger, S. J. Smartt, R. Margutti, A. Kamble, K. D. Alexander, T.-W. Chen, et al. “SN 2015bn: A DETAILED MULTI-WAVELENGTH VIEW OF A NEARBY SUPERLUMINOUS SUPERNOVA.” The Astrophysical Journal vol. 826, no. 1, 39, July 2016, pp. 1-31. © 2016 The American Astronomical Society. | en_US |
dc.contributor.department | MIT Kavli Institute for Astrophysics and Space Research | en_US |
dc.contributor.mitauthor | McDonald, Michael A. | |
dc.relation.journal | Astrophysical Journal | en_US |
dc.eprint.version | Final published version | en_US |
dc.type.uri | http://purl.org/eprint/type/JournalArticle | en_US |
eprint.status | http://purl.org/eprint/status/PeerReviewed | en_US |
dspace.orderedauthors | Nicholl, M.; Berger, E.; Smartt, S. J.; Margutti, R.; Kamble, A.; Alexander, K. D.; Chen, T.-W.; Inserra, C.; Arcavi, I.; Blanchard, P. K.; Cartier, R.; Chambers, K. C.; Childress, M. J.; Chornock, R.; Cowperthwaite, P. S.; Drout, M.; Flewelling, H. A.; Fraser, M.; Gal-Yam, A.; Galbany, L.; Harmanen, J.; Holoien, T. W.-S.; Hosseinzadeh, G.; Howell, D. A.; Huber, M. E.; Jerkstrand, A.; Kankare, E.; Kochanek, C. S.; Lin, Z.-Y.; Lunnan, R.; Magnier, E. A.; Maguire, K.; McCully, C.; McDonald, M.; Metzger, B. D.; Milisavljevic, D.; Mitra, A.; Reynolds, T.; Saario, J.; Shappee, B. J.; Smith, K. W.; Valenti, S.; Villar, V. A.; Waters, C.; Young, D. R. | en_US |
dspace.embargo.terms | N | en_US |
mit.license | PUBLISHER_POLICY | en_US |
mit.metadata.status | Complete | |