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Multi-messenger Obs...
Multi-messenger Observations of a Binary Neutron Star Merger
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- Ahrens, Maryon (author)
- Stockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)
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- Bohm, Christian (author)
- Stockholms universitet,Fysikum
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- Conrad, Jan M. (author)
- Stockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC),Stanford University, USA
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- Dumm, Jonathan P. (author)
- Stockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)
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- Finley, Chad (author)
- Stockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)
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- Flis, Samuel (author)
- Stockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)
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- Hultqvist, Klas (author)
- Stockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)
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- Walck, Christian (author)
- Stockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)
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- Zoll, Marcel (author)
- Stockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)
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- Meyer, Manuel (author)
- Stockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC),Stanford University, USA
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- Rosswog, Stephan (author)
- Stockholms universitet,Institutionen för astronomi,Oskar Klein-centrum för kosmopartikelfysik (OKC)
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- Feindt, Ulrich (author)
- Stockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)
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- Goobar, Ariel (author)
- Stockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)
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- Sollerman, Jesper (author)
- Stockholms universitet,Institutionen för astronomi,Oskar Klein-centrum för kosmopartikelfysik (OKC)
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- Barbarino, Cristina (author)
- Stockholms universitet,Institutionen för astronomi,Oskar Klein-centrum för kosmopartikelfysik (OKC)
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- Bulla, Mattia (author)
- Stockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)
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- Roy, Rupak (author)
- Stockholms universitet,Institutionen för astronomi,Oskar Klein-centrum för kosmopartikelfysik (OKC),LIGO, California Institute of Technology, USA
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- Taddia, Francesco (author)
- Stockholms universitet,Institutionen för astronomi,Oskar Klein-centrum för kosmopartikelfysik (OKC)
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- Farnier, Christian (author)
- Linnéuniversitetet,Stockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC),Linnaeus University, Sweden,Institutionen för fysik och elektroteknik (IFE)
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- Morå, Knut (author)
- Stockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)
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- Wagner, Robert M. (author)
- Stockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)
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- Abbott, B. P. (author)
- CALTECH, LIGO, Pasadena, CA 91125 USA,LIGO, California Institute of Technology, USA
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- Abbott, T.D. (author)
- Louisiana State University, USA
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- Acernese, F. (author)
- Università di Salerno, Italy;INFN, Italy
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- Ackley, K. (author)
- University of Florida, USA;OzGrav, Australia
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- Yang, Jun, 1979 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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et al. (totally thousands of authors), (author)
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- Botner, Olga (author)
- Uppsala universitet,Högenergifysik
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- Burgman, Alexander (author)
- Uppsala universitet,Högenergifysik
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- Hallgren, Allan (author)
- Uppsala universitet,Högenergifysik
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- Pérez de los Heros, Carlos (author)
- Uppsala universitet,Högenergifysik
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- Unger, Elisabeth (author)
- Uppsala universitet,Högenergifysik
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- Woudt, P. A. (author)
- Univ Cape Town, Dept Astron, Astrophys Cosmol & Grav Ctr, Private Bag X3, ZA-7701 Rondebosch, South Africa
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- Becherini, Yvonne (author)
- Linnéuniversitetet,Institutionen för fysik och elektroteknik (IFE)
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- Prokhorov, Dmitry (author)
- Linnéuniversitetet,Institutionen för fysik och elektroteknik (IFE)
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- Punch, Michael (author)
- Linnéuniversitetet,Institutionen för fysik och elektroteknik (IFE),Université Paris Diderot, France
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- Adams, C. (author)
- LIGO Livingston Observatory, USA
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(creator_code:org_t)
- 2017-10-16
- 2017
- English.
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In: Astrophysical Journal Letters. - : American Astronomical Society. - 2041-8205 .- 2041-8213. ; 848:2
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Abstract
Subject headings
Close
- On 2017 August 17 a binary neutron star coalescence candidate (later designated GW170817) with merger time 12:41:04 UTC was observed through gravitational waves by the Advanced LIGO and Advanced Virgo detectors. The Fermi Gamma-ray Burst Monitor independently detected a gamma-ray burst (GRB 170817A) with a time delay of similar to 1.7 s with respect to the merger time. From the gravitational-wave signal, the source was initially localized to a sky region of 31 deg(2) at a luminosity distance of 40(-8)(+8) Mpc and with component masses consistent with neutron stars. The component masses were later measured to be in the range 0.86 to 2.26 M-circle dot. An extensive observing campaign was launched across the electromagnetic spectrum leading to the discovery of a bright optical transient (SSS17a, now with the IAU identification of AT 2017gfo) in NGC 4993 (at similar to 40 Mpc) less than 11 hours after the merger by the One-Meter, Two Hemisphere (1M2H) team using the 1 m Swope Telescope. The optical transient was independently detected by multiple teams within an hour. Subsequent observations targeted the object and its environment. Early ultraviolet observations revealed a blue transient that faded within 48 hours. Optical and infrared observations showed a redward evolution over similar to 10 days. Following early non-detections, X-ray and radio emission were discovered at the transient's position similar to 9 and similar to 16 days, respectively, after the merger. Both the X-ray and radio emission likely arise from a physical process that is distinct from the one that generates the UV/optical/near-infrared emission. No ultra-high-energy gamma-rays and no neutrino candidates consistent with the source were found in follow-up searches. These observations support the hypothesis that GW170817 was produced by the merger of two neutron stars in NGC4993 followed by a short gamma-ray burst (GRB 170817A) and a kilonova/macronova powered by the radioactive decay of r-process nuclei synthesized in the ejecta.
Subject headings
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
Keyword
- gravitational waves
- stars: neutron
- Astroparticle Physics
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Ahrens, Maryon
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Bohm, Christian
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Conrad, Jan M.
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Dumm, Jonathan P ...
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Finley, Chad
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Flis, Samuel
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show more...
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Hultqvist, Klas
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Walck, Christian
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Zoll, Marcel
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Meyer, Manuel
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Rosswog, Stephan
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Feindt, Ulrich
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Goobar, Ariel
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Sollerman, Jespe ...
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Barbarino, Crist ...
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Bulla, Mattia
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Roy, Rupak
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Taddia, Francesc ...
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Farnier, Christi ...
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Morå, Knut
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Wagner, Robert M ...
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Abbott, B. P.
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Abbott, T.D.
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Acernese, F.
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Ackley, K.
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Yang, Jun, 1979
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et al. (totally ...
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Botner, Olga
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Burgman, Alexand ...
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Hallgren, Allan
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Pérez de los Her ...
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Unger, Elisabeth
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Woudt, P. A.
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Becherini, Yvonn ...
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Prokhorov, Dmitr ...
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Punch, Michael
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Adams, C.
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Astronomy Astrop ...
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Astrophysical Jo ...
- By the university
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Stockholm University
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Chalmers University of Technology
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Uppsala University
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Linnaeus University