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Light curves of the neutron star merger GW170817/SSS17a: Implications for r-process nucleosynthesis.
Drout, M R; Piro, A L; Shappee, B J; Kilpatrick, C D; Simon, J D; Contreras, C; Coulter, D A; Foley, R J; Siebert, M R; Morrell, N; Boutsia, K; Di Mille, F; Holoien, T W-S; Kasen, D; Kollmeier, J A; Madore, B F; Monson, A J; Murguia-Berthier, A; Pan, Y-C; Prochaska, J X; Ramirez-Ruiz, E; Rest, A; Adams, C; Alatalo, K; Bañados, E; Baughman, J; Beers, T C; Bernstein, R A; Bitsakis, T; Campillay, A; Hansen, T T; Higgs, C R; Ji, A P; Maravelias, G; Marshall, J L; Bidin, C Moni; Prieto, J L; Rasmussen, K C; Rojas-Bravo, C; Strom, A L; Ulloa, N; Vargas-González, J; Wan, Z; Whitten, D D.
Affiliation
  • Drout MR; The Observatories of the Carnegie Institution for Science, 813 Santa Barbara Street, Pasadena, CA 91101, USA. mdrout@carnegiescience.edu.
  • Piro AL; The Observatories of the Carnegie Institution for Science, 813 Santa Barbara Street, Pasadena, CA 91101, USA.
  • Shappee BJ; The Observatories of the Carnegie Institution for Science, 813 Santa Barbara Street, Pasadena, CA 91101, USA.
  • Kilpatrick CD; Institute for Astronomy, University of Hawai'i, 2680 Woodlawn Drive, Honolulu, HI 96822, USA.
  • Simon JD; Department of Astronomy and Astrophysics, University of California, Santa Cruz, CA 95064, USA.
  • Contreras C; The Observatories of the Carnegie Institution for Science, 813 Santa Barbara Street, Pasadena, CA 91101, USA.
  • Coulter DA; Las Campanas Observatory, Carnegie Observatories, Casilla 601, La Serena, Chile.
  • Foley RJ; Department of Astronomy and Astrophysics, University of California, Santa Cruz, CA 95064, USA.
  • Siebert MR; Department of Astronomy and Astrophysics, University of California, Santa Cruz, CA 95064, USA.
  • Morrell N; Department of Astronomy and Astrophysics, University of California, Santa Cruz, CA 95064, USA.
  • Boutsia K; Las Campanas Observatory, Carnegie Observatories, Casilla 601, La Serena, Chile.
  • Di Mille F; Las Campanas Observatory, Carnegie Observatories, Casilla 601, La Serena, Chile.
  • Holoien TW; Las Campanas Observatory, Carnegie Observatories, Casilla 601, La Serena, Chile.
  • Kasen D; The Observatories of the Carnegie Institution for Science, 813 Santa Barbara Street, Pasadena, CA 91101, USA.
  • Kollmeier JA; Departments of Physics and Astronomy, 366 LeConte Hall, University of California, Berkeley, CA 94720, USA.
  • Madore BF; Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.
  • Monson AJ; The Observatories of the Carnegie Institution for Science, 813 Santa Barbara Street, Pasadena, CA 91101, USA.
  • Murguia-Berthier A; The Observatories of the Carnegie Institution for Science, 813 Santa Barbara Street, Pasadena, CA 91101, USA.
  • Pan YC; The Observatories of the Carnegie Institution for Science, 813 Santa Barbara Street, Pasadena, CA 91101, USA.
  • Prochaska JX; Department of Astronomy and Astrophysics, The Pennsylvania State University, 525 Davey Laboratory, University Park, PA 16802, USA.
  • Ramirez-Ruiz E; Department of Astronomy and Astrophysics, University of California, Santa Cruz, CA 95064, USA.
  • Rest A; Department of Astronomy and Astrophysics, University of California, Santa Cruz, CA 95064, USA.
  • Adams C; Department of Astronomy and Astrophysics, University of California, Santa Cruz, CA 95064, USA.
  • Alatalo K; Department of Astronomy and Astrophysics, University of California, Santa Cruz, CA 95064, USA.
  • Bañados E; Dark Cosmology Center, Niels Bohr Institute, University of Copenhagen, Blegdamsvej 17, 2100 Copenhagen, Denmark.
  • Baughman J; Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218, USA.
  • Beers TC; Department of Physics and Astronomy, The Johns Hopkins University, 3400 North Charles Street, Baltimore, MD 21218, USA.
  • Bernstein RA; Division of Physics, Mathematics, and Astronomy, California Institute of Technology, Pasadena, CA 91125, USA.
  • Bitsakis T; The Observatories of the Carnegie Institution for Science, 813 Santa Barbara Street, Pasadena, CA 91101, USA.
  • Campillay A; Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218, USA.
  • Hansen TT; The Observatories of the Carnegie Institution for Science, 813 Santa Barbara Street, Pasadena, CA 91101, USA.
  • Higgs CR; Massachusetts Institute of Technology, Cambridge, MA, USA.
  • Ji AP; Núcleo de Astronomía de la Facultad de Ingeniería y Ciencias, Universidad Diego Portales, Avenida Ejército 441, Santiago, Chile.
  • Maravelias G; Department of Physics, University of Notre Dame, Notre Dame, IN 46556, USA.
  • Marshall JL; Joint Institute for Nuclear Astrophysics, Center for the Evolution of the Elements, East Lansing, MI 48824, USA.
  • Bidin CM; The Observatories of the Carnegie Institution for Science, 813 Santa Barbara Street, Pasadena, CA 91101, USA.
  • Prieto JL; Instituto de Radioastronomía y Astrofísica, Universidad Nacional Autónoma de México, C.P. 58190, Morelia, Mexico.
  • Rasmussen KC; Departamento de Física y Astronomía, Facultad de Ciencias, Universidad de La Serena, Cisternas 1200, La Serena, Chile.
  • Rojas-Bravo C; The Observatories of the Carnegie Institution for Science, 813 Santa Barbara Street, Pasadena, CA 91101, USA.
  • Strom AL; University of Victoria, Victoria, British Columbia, Canada.
  • Ulloa N; National Research Council Herzberg Institute of Astrophysics, 5071 West Saanich Road, Victoria, British Columbia V9E 2E7, Canada.
  • Vargas-González J; The Observatories of the Carnegie Institution for Science, 813 Santa Barbara Street, Pasadena, CA 91101, USA.
  • Wan Z; Instituto de Física y Astronomía, Universidad de Valparaíso, Avenida Gran Bretaña 1111, Casilla 5030, Valparaíso, Chile.
  • Whitten DD; George P. and Cynthia Woods Mitchell Institute for Fundamental Physics and Astronomy, and Department of Physics and Astronomy, Texas A&M University, College Station, TX 77843, USA.
Science ; 358(6370): 1570-1574, 2017 12 22.
Article in En | MEDLINE | ID: mdl-29038375
ABSTRACT
On 17 August 2017, gravitational waves (GWs) were detected from a binary neutron star merger, GW170817, along with a coincident short gamma-ray burst, GRB 170817A. An optical transient source, Swope Supernova Survey 17a (SSS17a), was subsequently identified as the counterpart of this event. We present ultraviolet, optical, and infrared light curves of SSS17a extending from 10.9 hours to 18 days postmerger. We constrain the radioactively powered transient resulting from the ejection of neutron-rich material. The fast rise of the light curves, subsequent decay, and rapid color evolution are consistent with multiple ejecta components of differing lanthanide abundance. The late-time light curve indicates that SSS17a produced at least ~0.05 solar masses of heavy elements, demonstrating that neutron star mergers play a role in rapid neutron capture (r-process) nucleosynthesis in the universe.
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Science Year: 2017 Document type: Article Affiliation country: United States
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Science Year: 2017 Document type: Article Affiliation country: United States