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Dawn of Multi-Messenger Astrophysics: The String of Pearls from GW170817

Dr. Andrew Matas, from the Dept. of Physics, Univ. of Minnesota, has been invited by the Head of our Physics Dept., prof.Schnee, to talk about the newest advances in astrophysics.

Abstract: On August 17, 2017, the first gravitational wave signal from the coalescence of a binary neutron star system, GW170817, was detected by Advanced LIGO and Virgo. This trigger was seen in coincidence with a short Gamma Ray Burst (SGRB) GW170817A, detected by the Fermi and Integral satellites. This launched a massive followup campaign with 70-plus ground-and-space based satellites, leading to observations of the event in all bands of the electromagnetic spectrum and marking the beginning of the era of multi-messenger astronomy. In this talk, I will describe the gravitational-wave detectors LIGO and Virgo and give an overview of the observations made across the electromagnetic spectrum. I will also discuss the wide-ranging implications for cosmology, nuclear physics, tests of general relativity, and astrophysics.

Physics Colloquium

Monday, December 04, 2017 3:55 PM - 5:00 PM
EP 252