Observational evidence of Extended Emission to GW170817

Document #:

JGW-G1909859-v1

Document type:

G

Submitted by:

Maurice H.P.M van Putten

Updated by:

Maurice H.P.M van Putten

Document Created:

22 Feb 2019, 09:36

Contents Revised:

22 Feb 2019, 09:36

DB Info Revised:

22 Feb 2019, 09:36

Abstract:

We report on E = 3%MSolar c2 in Extended Emission to GW170817 (van Putten & Della Valle, 2019, MNRAS, 482, L46) by signal injection experiments. Quantitative agreement is found with radiation from a non-axisymmetric torus around a rotating black hole formed in delayed core-collapse of a hyper-massive neutron star (HNS) created in the immediate aftermath of the double neutron star merger GW170817. This agreement is based on numerical integration of the equations of suspended accretion for a thick torus with a major radius of about three times the radius of the Inner Most Stable Circular Orbit (ISCO) of the initially non-extremal stellar mass black hole. The observed energies in Multi-Messenger Extended Emission - in GWs, a kilonova and GRB170817A - satisfy the scaling relations of van Putten & Levinson, 2003, ApJ, 584, 937. GW170817EE hereby provides calorimetric evidence for Kerr black holes as objects in Nature proposed in van Putten & Levinson, 2002, Science, 295, 1874.

Files in Document:

• talk at Aspen Winter Conference GWPop (2019) (vanPutten_AspenGWPop.pdf, 7.0 MB)

Topics:

• Management:Conference
• Activity:Data Analysis
• Detector:Data Analysis

Authors:

• Maurice H.P.M van Putten

Keywords:

GW170817 neutron star black hole

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Publication Information:

GWPop(2019) https://sites.google.com/fullerton.edu/gwpop-aspen2019/