Duncan Brown Syracuse University

39 Pages·2017·19.18 MB·English

GW170817:
Discovery of a
Binary Neutron Star Merger
Duncan Brown
Syracuse University

But only seen at
Low chirp mass
Hanford,
(1.20) and low
Event Submitted
even though
High signal-to-
Fermi gamma-ray burst event False alarm rate
total mass (2.8)
at 8.47 EDT
Livingston and
noise ratio (14)
~ 2 second after merger! looks significant
suggests binary
Virgo were
~ 1 / 9000 years...
neutron star...
operating...
Cannon et al. ApJ 748 136 (2012)
Messick et al. PRD 95, 042001 (2017)

Rapid offline re-analysis of Hanford, Livingston, and Virgo data
25
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0.30 0.35 0.40 0.45 0.50 0.55
Time from 1187008882 (seconds)
Usman,... DAB, et al. Class.Quant.Grav. 33 215004 (2016)
Nitz, Dent, Del Canton, Fairhurst, DAB. ApJ 849 118 (2017)
Laura Nuttall Andy Lundgren Tito Dal Canton
Ian Harry Alex Nitz TJ Massinger
Singer and Price PRD 93, 024013 (2016)