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The emergence of a lanthanide-rich kilonova following the merger of two neutron stars
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dc.contributor.author | Tanvir, N. R. | |
dc.contributor.author | Levan, A. J. | |
dc.contributor.author | González-Fernández, C. | |
dc.contributor.author | Korobkin, O. | |
dc.contributor.author | Mandel, I. | |
dc.contributor.author | Rosswog, S. | |
dc.contributor.author | Hjorth, J. | |
dc.contributor.author | D’Avanzo, P. | |
dc.contributor.author | Fruchter, A. S. | |
dc.contributor.author | Fryer, C. L. | |
dc.contributor.author | Kangas, T. | |
dc.contributor.author | Milvang-Jensen, B. | |
dc.contributor.author | Rosetti, S. | |
dc.contributor.author | Steeghs, D. | |
dc.contributor.author | Wollaeger, R. T. | |
dc.contributor.author | Cano, Z. | |
dc.contributor.author | Copperwheat, C. M. | |
dc.contributor.author | Covino, S. | |
dc.contributor.author | D’Elia, V. | |
dc.contributor.author | Postigo, A. de Ugarte | |
dc.contributor.author | Evans, P. A. | |
dc.contributor.author | Even, W. P. | |
dc.contributor.author | Fairhurst, S. | |
dc.contributor.author | Figuera Jaimes, R. | |
dc.contributor.author | Fontes, C. J. | |
dc.contributor.author | Fujii, Y. I. | |
dc.contributor.author | Fynbo, J. P. U. | |
dc.contributor.author | Gompertz, B. P. | |
dc.contributor.author | Greiner, J. | |
dc.contributor.author | Hodosan, G. | |
dc.contributor.author | Irwin, M. J. | |
dc.contributor.author | Jakobsson, P. | |
dc.contributor.author | Jørgensen, U. G. | |
dc.contributor.author | Kann, D. A. | |
dc.contributor.author | Lyman, J. D. | |
dc.contributor.author | Malesani, D. | |
dc.contributor.author | McMahon, R. G. | |
dc.contributor.author | Melandri, A. | |
dc.contributor.author | O’Brien, P. T. | |
dc.contributor.author | Osborne, J. P. | |
dc.contributor.author | Palazzi, E. | |
dc.contributor.author | Perley, D. A. | |
dc.contributor.author | Pian, E. | |
dc.contributor.author | Piranomonte, S. | |
dc.contributor.author | Rabus, M. | |
dc.contributor.author | Rol, E. | |
dc.contributor.author | Rowlinson, A. | |
dc.contributor.author | Schulze, S. | |
dc.contributor.author | Sutton, P. | |
dc.contributor.author | Thöne, C. C. | |
dc.contributor.author | Ulaczyk, K. | |
dc.contributor.author | Watson, D. | |
dc.contributor.author | Wiersema, K. | |
dc.contributor.author | Wijers, R. A. M. J. | |
dc.date.accessioned | 2017-11-15T16:30:19Z | |
dc.date.available | 2017-11-15T16:30:19Z | |
dc.date.issued | 2017-10-16 | |
dc.identifier | 251537007 | |
dc.identifier | 18cc692f-1fe1-4e2b-b39a-1042075e8050 | |
dc.identifier | 85032015176 | |
dc.identifier | 000413099200015 | |
dc.identifier.citation | Tanvir , 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 . https://doi.org/10.3847/2041-8213/aa90b6 | en |
dc.identifier.issn | 2041-8205 | |
dc.identifier.other | Bibtex: urn:eb280e5baa69b38ec0fd9e54f0bb6e6a | |
dc.identifier.uri | https://hdl.handle.net/10023/12103 | |
dc.description.abstract | We 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.format.extent | 9 | |
dc.format.extent | 1072803 | |
dc.language.iso | eng | |
dc.relation.ispartof | Astrophysical Journal Letters | en |
dc.subject | Gravitational waves | en |
dc.subject | Nuclear reactions | en |
dc.subject | Nucleosynthesis | en |
dc.subject | Abundances | en |
dc.subject | Stars: neutron | en |
dc.subject | QB Astronomy | en |
dc.subject | QC Physics | en |
dc.subject | 3rd-DAS | en |
dc.subject.lcc | QB | en |
dc.subject.lcc | QC | en |
dc.title | The emergence of a lanthanide-rich kilonova following the merger of two neutron stars | en |
dc.type | Journal article | en |
dc.contributor.institution | University of St Andrews. School of Physics and Astronomy | en |
dc.contributor.institution | University of St Andrews. St Andrews Centre for Exoplanet Science | en |
dc.identifier.doi | 10.3847/2041-8213/aa90b6 | |
dc.description.status | Peer reviewed | en |
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