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dc.contributor.authorTanvir, N. R.
dc.contributor.authorLevan, A. J.
dc.contributor.authorGonzález-Fernández, C.
dc.contributor.authorKorobkin, O.
dc.contributor.authorMandel, I.
dc.contributor.authorRosswog, S.
dc.contributor.authorHjorth, J.
dc.contributor.authorD’Avanzo, P.
dc.contributor.authorFruchter, A. S.
dc.contributor.authorFryer, C. L.
dc.contributor.authorKangas, T.
dc.contributor.authorMilvang-Jensen, B.
dc.contributor.authorRosetti, S.
dc.contributor.authorSteeghs, D.
dc.contributor.authorWollaeger, R. T.
dc.contributor.authorCano, Z.
dc.contributor.authorCopperwheat, C. M.
dc.contributor.authorCovino, S.
dc.contributor.authorD’Elia, V.
dc.contributor.authorPostigo, A. de Ugarte
dc.contributor.authorEvans, P. A.
dc.contributor.authorEven, W. P.
dc.contributor.authorFairhurst, S.
dc.contributor.authorFiguera Jaimes, R.
dc.contributor.authorFontes, C. J.
dc.contributor.authorFujii, Y. I.
dc.contributor.authorFynbo, J. P. U.
dc.contributor.authorGompertz, B. P.
dc.contributor.authorGreiner, J.
dc.contributor.authorHodosan, G.
dc.contributor.authorIrwin, M. J.
dc.contributor.authorJakobsson, P.
dc.contributor.authorJørgensen, U. G.
dc.contributor.authorKann, D. A.
dc.contributor.authorLyman, J. D.
dc.contributor.authorMalesani, D.
dc.contributor.authorMcMahon, R. G.
dc.contributor.authorMelandri, A.
dc.contributor.authorO’Brien, P. T.
dc.contributor.authorOsborne, J. P.
dc.contributor.authorPalazzi, E.
dc.contributor.authorPerley, D. A.
dc.contributor.authorPian, E.
dc.contributor.authorPiranomonte, S.
dc.contributor.authorRabus, M.
dc.contributor.authorRol, E.
dc.contributor.authorRowlinson, A.
dc.contributor.authorSchulze, S.
dc.contributor.authorSutton, P.
dc.contributor.authorThöne, C. C.
dc.contributor.authorUlaczyk, K.
dc.contributor.authorWatson, D.
dc.contributor.authorWiersema, K.
dc.contributor.authorWijers, R. A. M. J.
dc.identifier.citationTanvir , N R , Levan , A J , González-Fernández , C , Korobkin , O , Mandel , I , Rosswog , S , Hjorth , J , D’Avanzo , P , Fruchter , A S , Fryer , C L , Kangas , T , Milvang-Jensen , B , Rosetti , S , Steeghs , D , Wollaeger , R T , Cano , Z , Copperwheat , C M , Covino , S , D’Elia , V , Postigo , A D U , Evans , P A , Even , W P , Fairhurst , S , Figuera Jaimes , R , Fontes , C J , Fujii , Y I , Fynbo , J P U , Gompertz , B P , Greiner , J , Hodosan , G , Irwin , M J , Jakobsson , P , Jørgensen , U G , Kann , D A , Lyman , J D , Malesani , D , McMahon , R G , Melandri , A , O’Brien , P T , Osborne , J P , Palazzi , E , Perley , D A , Pian , E , Piranomonte , S , Rabus , M , Rol , E , Rowlinson , A , Schulze , S , Sutton , P , Thöne , C C , Ulaczyk , K , Watson , D , Wiersema , K & Wijers , R A M J 2017 , ' The emergence of a lanthanide-rich kilonova following the merger of two neutron stars ' , Astrophysical Journal Letters , vol. 848 , no. 2 , L27 .
dc.identifier.otherPURE: 251537007
dc.identifier.otherPURE UUID: 18cc692f-1fe1-4e2b-b39a-1042075e8050
dc.identifier.otherBibtex: urn:eb280e5baa69b38ec0fd9e54f0bb6e6a
dc.identifier.otherScopus: 85032015176
dc.identifier.otherWOS: 000413099200015
dc.description.abstractWe report the discovery and monitoring of the near-infrared counterpart (AT2017gfo) of a binary neutron-star merger event detected as a gravitational wave source by Advanced Laser Interferometer Gravitational-wave Observatory (LIGO)/Virgo (GW170817) and as a short gamma-ray burst by Fermi Gamma-ray Burst Monitor (GBM) and Integral SPI-ACS (GRB 170817A). The evolution of the transient light is consistent with predictions for the behavior of a “kilonova/macronova” powered by the radioactive decay of massive neutron-rich nuclides created via r-process nucleosynthesis in the neutron-star ejecta. In particular, evidence for this scenario is found from broad features seen in Hubble Space Telescope infrared spectroscopy, similar to those predicted for lanthanide-dominated ejecta, and the much slower evolution in the near-infrared Ks-band compared to the optical. This indicates that the late-time light is dominated by high-opacity lanthanide-rich ejecta, suggesting nucleosynthesis to the third r-process peak (atomic masses A ≈ 195). This discovery confirms that neutron-star mergers produce kilo-/macronovae and that they are at least a major—if not the dominant—site of rapid neutron capture nucleosynthesis in the universe.
dc.relation.ispartofAstrophysical Journal Lettersen
dc.rights© 2017. The American Astronomical Society. Open Access article. Original content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.en
dc.subjectGravitational wavesen
dc.subjectNuclear reactionsen
dc.subjectStars: neutronen
dc.subjectQB Astronomyen
dc.subjectQC Physicsen
dc.titleThe emergence of a lanthanide-rich kilonova following the merger of two neutron starsen
dc.typeJournal articleen
dc.description.versionPublisher PDFen
dc.contributor.institutionUniversity of St Andrews.School of Physics and Astronomyen
dc.contributor.institutionUniversity of St Andrews.St Andrews Centre for Exoplanet Scienceen
dc.description.statusPeer revieweden

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