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Title: Neutron star mergers chirp about vacuum energy

Abstract

Observations of gravitational waves from neutron star mergers open up novel directions for exploring fundamental physics: they offer the first access to the structure of objects with a non-negligible contribution from vacuum energy to their total mass. The presence of such vacuum energy in the inner cores of neutron stars occurs in new QCD phases at large densities, with the vacuum energy appearing in the equation of state for a new phase. This in turn leads to a change in the internal structure of neutron stars and influences their tidal deformabilities which are measurable in the chirp signals of merging neutron stars. By considering three commonly used neutron star models we show that for large chirp masses the effect of vacuum energy on the tidal deformabilities can be sizable. Measurements of this sort have the potential to provide a first test of the gravitational properties of vacuum energy independent from the acceleration of the Universe, and to determine the size of QCD contributions to the vacuum energy.

Authors:
 [1];  [2];  [2]; ORCiD logo [2];  [3]
  1. Cornell Univ., Ithaca, NY (United States)
  2. Syracuse Univ., Syracuse, NY (United States)
  3. Univ. of California, Davis, CA (United States)
Publication Date:
Research Org.:
Univ. of California, Riverside, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1512287
Grant/Contract Number:  
SC0018298
Resource Type:
Accepted Manuscript
Journal Name:
Journal of High Energy Physics (Online)
Additional Journal Information:
Journal Name: Journal of High Energy Physics (Online); Journal Volume: 2018; Journal Issue: 9; Journal ID: ISSN 1029-8479
Publisher:
Springer Berlin
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS; Beyond Standard Model; Cosmology of Theories beyond the SM; Phase Diagram of QCD

Citation Formats

Csáki, Csaba, Eröncel, Cem, Hubisz, Jay, Rigo, Gabriele, and Terning, John. Neutron star mergers chirp about vacuum energy. United States: N. p., 2018. Web. doi:10.1007/jhep09(2018)087.
Csáki, Csaba, Eröncel, Cem, Hubisz, Jay, Rigo, Gabriele, & Terning, John. Neutron star mergers chirp about vacuum energy. United States. doi:10.1007/jhep09(2018)087.
Csáki, Csaba, Eröncel, Cem, Hubisz, Jay, Rigo, Gabriele, and Terning, John. Mon . "Neutron star mergers chirp about vacuum energy". United States. doi:10.1007/jhep09(2018)087. https://www.osti.gov/servlets/purl/1512287.
@article{osti_1512287,
title = {Neutron star mergers chirp about vacuum energy},
author = {Csáki, Csaba and Eröncel, Cem and Hubisz, Jay and Rigo, Gabriele and Terning, John},
abstractNote = {Observations of gravitational waves from neutron star mergers open up novel directions for exploring fundamental physics: they offer the first access to the structure of objects with a non-negligible contribution from vacuum energy to their total mass. The presence of such vacuum energy in the inner cores of neutron stars occurs in new QCD phases at large densities, with the vacuum energy appearing in the equation of state for a new phase. This in turn leads to a change in the internal structure of neutron stars and influences their tidal deformabilities which are measurable in the chirp signals of merging neutron stars. By considering three commonly used neutron star models we show that for large chirp masses the effect of vacuum energy on the tidal deformabilities can be sizable. Measurements of this sort have the potential to provide a first test of the gravitational properties of vacuum energy independent from the acceleration of the Universe, and to determine the size of QCD contributions to the vacuum energy.},
doi = {10.1007/jhep09(2018)087},
journal = {Journal of High Energy Physics (Online)},
number = 9,
volume = 2018,
place = {United States},
year = {2018},
month = {9}
}

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Cited by: 6 works
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Figures / Tables:

Table 1 Table 1: The parameters used for each EoS. The exponents $γ$i are dimensionless, the various pressures have units of MeV4, and $K$1 is in units of MeV4-4$γ$1 . The Hebeler et al. parametrization uses a semi-analytic expression which is not piecewise polytropic in the outer region of the star, andmore » thus cannot be displayed in the table.« less

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Works referenced in this record:

Using Gravitational-wave Observations and Quasi-universal Relations to Constrain the Maximum Mass of Neutron Stars
journal, January 2018

  • Rezzolla, Luciano; Most, Elias R.; Weih, Lukas R.
  • The Astrophysical Journal, Vol. 852, Issue 2
  • DOI: 10.3847/2041-8213/aaa401

Static Solutions of Einstein's Field Equations for Spheres of Fluid
journal, February 1939


Color superconducting quark matter core in the third family of compact stars
journal, June 2003


Phase transition in dense nuclear matter with quark and gluon condensates
journal, December 1991


Quark phases in neutron stars and a third family of compact stars as signature for phase transitions
journal, September 2000


Hypothesis concerning quark stars
journal, January 1967

  • Ivanenko, D. D.; Kurdgelaidze, D. F.
  • Astrophysics, Vol. 1, Issue 4
  • DOI: 10.1007/BF01042830

Maximum mass of neutron stars and strange neutron-star cores
journal, February 2013


Color superconductivity in dense quark matter
journal, November 2008

  • Alford, Mark G.; Schmitt, Andreas; Rajagopal, Krishna
  • Reviews of Modern Physics, Vol. 80, Issue 4
  • DOI: 10.1103/RevModPhys.80.1455

Search for dark matter effects on gravitational signals from neutron star mergers
journal, June 2018


Small, dense quark stars from perturbative QCD
journal, May 2001

  • Fraga, Eduardo S.; Pisarski, Robert D.; Schaffner-Bielich, Jürgen
  • Physical Review D, Vol. 63, Issue 12
  • DOI: 10.1103/PhysRevD.63.121702

Crystalline color superconductors
journal, April 2014

  • Anglani, Roberto; Casalbuoni, Roberto; Ciminale, Marco
  • Reviews of Modern Physics, Vol. 86, Issue 2
  • DOI: 10.1103/RevModPhys.86.509

Constraining the Maximum Mass of Neutron Stars from Multi-messenger Observations of GW170817
journal, November 2017


The Ground State of Matter at High Densities: Equation of State and Stellar Models
journal, November 1971

  • Baym, Gordon; Pethick, Christopher; Sutherland, Peter
  • The Astrophysical Journal, Vol. 170
  • DOI: 10.1086/151216

Generic Conditions for Stable Hybrid Stars
journal, January 2014


Phase transitions and the mass-radius curves of relativistic stars
journal, June 1998


Gravitational-Wave Constraints on the Neutron-Star-Matter Equation of State
journal, April 2018


Constraints on Neutron Star Radii Based on Chiral Effective Field Theory Interactions
journal, October 2010


Classifications of twin star solutions for a constant speed of sound parameterized equation of state
journal, February 2018

  • Christian, Jan-Erik; Zacchi, Andreas; Schaffner-Bielich, Jürgen
  • The European Physical Journal A, Vol. 54, Issue 2
  • DOI: 10.1140/epja/i2018-12472-y

High-energy Astrophysics and a Possible Sub-nuclear Energy Source
journal, January 1966


Tidal Love Numbers of Neutron Stars
journal, April 2008

  • Hinderer, Tanja
  • The Astrophysical Journal, Vol. 677, Issue 2
  • DOI: 10.1086/533487

A Catalogue of Methods for Studying the Normal Modes of Radial Pulsation of General-Relativistic Stellar Models
journal, August 1966

  • Bardeen, James M.; Thorne, Kip S.; Meltzer, David W.
  • The Astrophysical Journal, Vol. 145
  • DOI: 10.1086/148791

Neutron Star Structure and the Equation of State
journal, March 2001

  • Lattimer, J. M.; Prakash, M.
  • The Astrophysical Journal, Vol. 550, Issue 1
  • DOI: 10.1086/319702

Compact Stars with Sequential QCD Phase Transitions
journal, October 2017


Searching for a pulse
journal, December 2017


Interacting Quark Matter Equation of State for Compact Stars
journal, January 2014


Measuring Neutron star Radii via Pulse Profile Modeling with Nicer
journal, November 2016

  • Özel, Feryal; Psaltis, Dimitrios; Arzoumanian, Zaven
  • The Astrophysical Journal, Vol. 832, Issue 1
  • DOI: 10.3847/0004-637X/832/1/92

A unified equation of state of dense matter and neutron star structure
journal, December 2001


Equation of state of nucleon matter and neutron star structure
journal, September 1998


Neutron-star Radius Constraints from GW170817 and Future Detections
journal, November 2017

  • Bauswein, Andreas; Just, Oliver; Janka, Hans-Thomas
  • The Astrophysical Journal, Vol. 850, Issue 2
  • DOI: 10.3847/2041-8213/aa9994

The Nuclear Equation of State and Neutron Star Masses
journal, November 2012


Equation of state of dense matter and maximum mass of neutron stars
journal, January 2003


Hidden-sector Spectroscopy with Gravitational Waves from Binary Neutron Stars
journal, April 2018


Hydrostatic Equilibrium of Hypothetical Quark Stars
journal, July 1970


Dark Kinetic Heating of Neutron Stars and an Infrared Window on WIMPs, SIMPs, and Pure Higgsinos
journal, September 2017


Phase Transitions in Neutron Stars and Maximum Masses
journal, November 1999

  • Heiselberg, H.; Hjorth-Jensen, M.
  • The Astrophysical Journal, Vol. 525, Issue 1
  • DOI: 10.1086/312321

Equation of State and Neutron star Properties Constrained by Nuclear Physics and Observation
journal, July 2013


Consequences of a strong phase transition in the dense matter equation of state for the rotational evolution of neutron stars
journal, March 2017


A two-solar-mass neutron star measured using Shapiro delay
journal, October 2010

  • Demorest, P. B.; Pennucci, T.; Ransom, S. M.
  • Nature, Vol. 467, Issue 7319
  • DOI: 10.1038/nature09466

Singular hypersurfaces and thin shells in general relativity
journal, July 1966


Cosmological and astrophysical probes of vacuum energy
journal, June 2016

  • Bellazzini, Brando; Csáki, Csaba; Hubisz, Jay
  • Journal of High Energy Physics, Vol. 2016, Issue 6
  • DOI: 10.1007/JHEP06(2016)104

The red- or violet-shift of quasars without any source motion
journal, September 1966

  • Boccaletti, D.; de Sabbata, V.; Gualdi, C.
  • Il Nuovo Cimento A, Vol. 45, Issue 2
  • DOI: 10.1007/BF02856399

Relativistic mean-field theory and the high-density nuclear equation of state
journal, September 1996


On Massive Neutron Cores
journal, February 1939


Neutron star matter at sub-nuclear densities
journal, June 1973


    Works referencing / citing this record:

    Pixelated Dark Energy
    journal, August 2019

    • Heckman, Jonathan J.; Lawrie, Craig; Lin, Ling
    • Fortschritte der Physik, Vol. 67, Issue 11
    • DOI: 10.1002/prop.201900071

    Equation-of-state constraints and the QCD phase transition in the era of gravitational-wave astronomy
    conference, January 2019

    • Bauswein, Andreas; Bastian, Niels-Uwe Friedrich; Blaschke, David
    • XIAMEN-CUSTIPEN WORKSHOP ON THE EQUATION OF STATE OF DENSE NEUTRON-RICH MATTER IN THE ERA OF GRAVITATIONAL WAVE ASTRONOMY, AIP Conference Proceedings
    • DOI: 10.1063/1.5117803

    Tidal deformability with sharp phase transitions in binary neutron stars
    journal, April 2019


    Identifying a First-Order Phase Transition in Neutron-Star Mergers through Gravitational Waves
    journal, February 2019