University of Minnesota
School of Physics & Astronomy

Cosmology Lunchtime Seminar

Monday, November 26th 2018
12:15 pm:
Speaker: Sharan Banagiri, UMN
Subject: Gravitational wave searches for the post-merger remnants of GW170817

In August 2017, the LIGO and Virgo detectors detected gravitational waves from a binary neutron star merger, GW170817. The merger and its aftermath was also seen across the electromagnetic spectrum, with the combined observations providing a wealth of new data and opening the door to new cosmological and astrophysical measurements. However, one of the things we do not know yet is the fate of the merger remnant. Gravitational waves could be one way to detect the nature of a binary neutron star merger remnant, and a detection can be used to bound the upper mass limits of neutron stars and probe the equation of state at those high masses. In this talk I will describe the searches done by LIGO and Virgo collaborations to try and detect such a remnant from GW170817. I will also discuss ongoing development of parameter estimation methods of signals from long lived merger remnants and what we can look forward to in future observing runs.

Faculty Host: Vuk Mandic

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