onr:"swepub:oai:DiVA.org:su-149847"
Sökning: onr:"swepub:oai:DiVA.org:su-149847" > Multi-messenger Obs...
- 1 av 1
- Föregående post
- Nästa post
- Till träfflistan
Multi-messenger Observations of a Binary Neutron Star Merger
-
- Ahrens, Maryon (författare)
- Stockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)
-
- Bohm, Christian (författare)
- Stockholms universitet,Fysikum
-
- Conrad, Jan M. (författare)
- Stockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC),Stanford University, USA
- visa fler...
- et al. (totally thousands of authors), (författare)
- visa färre...
- (creator_code:org_t)
- 2017-10-16
- 2017
- Engelska.
- Ingår i: Astrophysical Journal Letters. - : American Astronomical Society. - 2041-8205 .- 2041-8213. ; 848:2
- Tidskriftsartikel (refereegranskat)
Abstract
Ämnesord
Stäng
- 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.
Ämnesord
- 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)
Nyckelord
- gravitational waves
- stars: neutron
- Astroparticle Physics
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
Hitta via bibliotek
- Astrophysical Journal Letters (Sök värdpublikationen i LIBRIS)
Till lärosätets databas
- 1 av 1
- Föregående post
- Nästa post
- Till träfflistan
Hitta mer i SwePub
- Av författaren/redakt...
- Ahrens, Maryon
- Bohm, Christian
- Conrad, Jan M.
- Dumm, Jonathan P ...
- Finley, Chad
- Flis, Samuel
- visa fler...
- Hultqvist, Klas
- Walck, Christian
- Zoll, Marcel
- Meyer, Manuel
- Rosswog, Stephan
- Feindt, Ulrich
- Goobar, Ariel
- Sollerman, Jespe ...
- Barbarino, Crist ...
- Bulla, Mattia
- Roy, Rupak
- Taddia, Francesc ...
- Farnier, Christi ...
- Morå, Knut
- Wagner, Robert M ...
- Abbott, B. P.
- Abbott, T.D.
- Acernese, F.
- Ackley, K.
- Yang, Jun, 1979
- et al. (totally ...
- Botner, Olga
- Burgman, Alexand ...
- Hallgren, Allan
- Pérez de los Her ...
- Unger, Elisabeth
- Woudt, P. A.
- Becherini, Yvonn ...
- Prokhorov, Dmitr ...
- Punch, Michael
- Adams, C.
- visa färre...
- Om ämnet
-
- NATURVETENSKAP
- NATURVETENSKAP
- och Fysik
-
- NATURVETENSKAP
- NATURVETENSKAP
- och Fysik
- och Astronomi astrof ...
- Artiklar i publikationen
- Astrophysical Jo ...
Sök utanför SwePub
- Sök vidare i:
- Google Book Search
- Google Scholar
Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.
- Copyright © LIBRIS - Nationella bibliotekssystem
- LIBRIS.kb.se
