Detecting the hadron-quark phase transition with gravitational waves

  • The long-awaited detection of a gravitational wave from the merger of a binary neutron star in August 2017 (GW170817) marks the beginning of the new field of multi-messenger gravitational wave astronomy. By exploiting the extracted tidal deformations of the two neutron stars from the late inspiral phase of GW170817, it is now possible to constrain several global properties of the equation of state of neutron star matter. However, the most interesting part of the high density and temperature regime of the equation of state is solely imprinted in the post-merger gravitational wave emission from the remnant hypermassive/supramassive neutron star. This regime was not observed in GW170817, but will possibly be detected in forthcoming events within the current observing run of the LIGO/VIRGO collaboration. Numerous numerical-relativity simulations of merging neutron star binaries have been performed during the last decades, and the emitted gravitational wave profiles and the interior structure of the generated remnants have been analysed in detail. The consequences of a potential appearance of a hadron-quark phase transition in the interior region of the produced hypermassive neutron star and the evolution of its underlying matter in the phase diagram of quantum cromo dynamics will be in the focus of this article. It will be shown that the different density/temperature regions of the equation of state can be severely constrained by a measurement of the spectral properties of the emitted post-merger gravitational wave signal from a future binary compact star merger event.

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Metadaten
Author:Matthias HanauskeGND, Luke Bovard, Elias Roland Most, Ludwig Jens Papenfort, Jan Steinheimer-FroschauerORCiDGND, Anton Motornenko, Volodymyr Vovchenko, Verônica Antocheviz DexheimerORCiDGND, Stefan SchrammGND, Horst StöckerORCiDGND
URN:urn:nbn:de:hebis:30:3-515030
DOI:https://doi.org/10.3390/universe5060156
ISSN:2218-1997
Parent Title (English):Universe
Publisher:MDPI
Place of publication:Basel
Document Type:Article
Language:English
Year of Completion:2019
Date of first Publication:2019/06/20
Publishing Institution:Universitätsbibliothek Johann Christian Senckenberg
Release Date:2019/10/24
Tag:binary neutron star merger; equation of state; gravitational wave; hadron-quark phase transition
Volume:5
Issue:156
Page Number:12
HeBIS-PPN:45570774X
Institutes:Physik / Physik
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik
Sammlungen:Universitätspublikationen
Licence (German):License LogoCreative Commons - Namensnennung 4.0