GW170817: observation of gravitational waves from a binary neutron star inspiral
Citations
77 citations
77 citations
Cites background from "GW170817: observation of gravitatio..."
...The sources of 10 of the detections are binary black hole (BBH) mergers, and the source of the other event was the merger of a binary neutron star (BNS) system (Abbott et al. 2017; The LIGO Scientific Collaboration et al. 2018b)....
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77 citations
Cites background from "GW170817: observation of gravitatio..."
...In addition, identifying the existence of a polar component can constrain the viewing angle, which in turn constrains the distance of the merger through the gravitational-wave signal, improving the use of such mergers as cosmological distance probes (Abbott et al. 2017)....
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77 citations
77 citations
Cites background or methods from "GW170817: observation of gravitatio..."
...To test the sensitivity of our results to neutron star mass measurements, we sampled the high-spin prior (a 0.89< ) component mass posteriors, which have a much broader range of 1.36–2.26Me and 0.86–1.36Me for the primary and secondary components masses, respectively (Abbott et al. 2017b)....
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...Independently, a gamma-ray signal, classified as a short gamma-ray burst (sGRB), GRB170817A, coincident in time and sky location with GW170817 was detected by the Fermi-GBM instrument (Abbott et al. 2017a, 2017b)....
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...Aided by the tight localization constraints of the threedetector network and the proximity of the GW source, multiple independent surveys across the EM spectrum were launched in search of a counterpart beyond the sGRB (Abbott et al. 2017c)....
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...Our GW data analysis has yielded a measurement of the BNS rate density of 320–4740 Gpc−3 yr−1 (Abbott et al. 2017b), consistent with the measurements from radio-pulsar observations (e.g., Abadie et al. 2010)....
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...…, , , 13k k 1 2 He pre gal gal gal gal kick sys sys Q q f q f q f = W [ ] ( ) where m1 and m2 are sampled from the posterior parameters of GW170817 (Abbott et al. 2017b); MHe is the progenitor helium-star mass; Rgal, galq , and galf are the spherical coordinates of SN2 in the galactic frame of…...
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References
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