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  Modeling dynamical ejecta from binary neutron star mergers and implications for electromagnetic counterparts

Dietrich, T., & Ujevic, M. (2017). Modeling dynamical ejecta from binary neutron star mergers and implications for electromagnetic counterparts. Classical and Quantum Gravity, 34(10): 105014. doi:10.1088/1361-6382/aa6bb0.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002C-4BBF-F Version Permalink: http://hdl.handle.net/21.11116/0000-0002-E9C8-6
Genre: Journal Article

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1612.03665.pdf (Preprint), 4MB
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 Creators:
Dietrich, Tim1, Author              
Ujevic, Maximiliano, Author
Affiliations:
1Astrophysical and Cosmological Relativity, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, ou_1933290              

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Free keywords: General Relativity and Quantum Cosmology, gr-qc, Astrophysics, High Energy Astrophysical Phenomena, astro-ph.HE
 Abstract: In addition to the emission of gravitational waves (GWs) the coalescence and merger of two neutron stars will produce a variety of electromagnetic (EM) signals. In this work we combine a large set of numerical relativity simulations performed by different groups and we present fits for the mass, kinetic energy, and the velocities of the dynamical ejected material. Additionally, we comment on the geometry and composition of the ejecta and discuss the influence of the stars' individual rotation. The derived fits can be used to approximate the luminosity and lightcurve of the kilonovae (macronovae) and to estimate the main properties of the radio flares. This correlation between the binary parameters and the EM signals allows in case of a GW detection to approximate possible EM counterparts when first estimates of the masses are available. After a possible kilonovae observation our results could also be used to restrict the region of the parameter space which has to be covered by numerical relativity simulations.

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 Dates: 2016-12-1220172017
 Publication Status: Published in print
 Pages: 25 pages, 11 figures
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 Table of Contents: -
 Rev. Type: -
 Identifiers: arXiv: 1612.03665
URI: http://arxiv.org/abs/1612.03665
DOI: 10.1088/1361-6382/aa6bb0
 Degree: -

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Title: Classical and Quantum Gravity
Source Genre: Journal
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Pages: - Volume / Issue: 34 (10) Sequence Number: 105014 Start / End Page: - Identifier: -