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Cuckoo's Eggs in Neutron Stars: Can LIGO Hear Chirps from the Dark Sector?

We explore in detail the possibility that gravitational wave signals from binary inspirals are affected by a new force that couples only to dark matter particles. We discuss the impact of both the new force acting between the binary partners as well as radiation of the force carrier. We identify num...

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Detalles Bibliográficos
Autores principales: Kopp, Joachim, Laha, Ranjan, Opferkuch, Toby, Shepherd, William
Lenguaje:eng
Publicado: 2018
Materias:
Acceso en línea:https://dx.doi.org/10.1007/JHEP11(2018)096
http://cds.cern.ch/record/2632386
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author Kopp, Joachim
Laha, Ranjan
Opferkuch, Toby
Shepherd, William
author_facet Kopp, Joachim
Laha, Ranjan
Opferkuch, Toby
Shepherd, William
author_sort Kopp, Joachim
collection CERN
description We explore in detail the possibility that gravitational wave signals from binary inspirals are affected by a new force that couples only to dark matter particles. We discuss the impact of both the new force acting between the binary partners as well as radiation of the force carrier. We identify numerous constraints on any such scenario, ultimately concluding that observable effects on the dynamics of binary inspirals due to such a force are not possible if the dark matter is accrued during ordinary stellar evolution. Constraints arise from the requirement that the astronomical body be able to collect and bind at small enough radius an adequate number of dark matter particles, from the requirement that the particles thus collected remain bound to neutron stars in the presence of another neutron star, and from the requirement that the theory allows old neutron stars to exist and retain their charge. Thus, we show that any deviation from the predictions of general relativity observed in binary inspirals must be due either to the material properties of the inspiraling objects themselves, such as a tidal deformability, to a true fifth force coupled to baryons, or to a non-standard production mechanism for the dark matter cores of neutron stars. Viable scenarios of the latter type include production of dark matter in exotic neutron decays, or the formation of compact dark matter objects in the early Universe that later seed star formation or are captured by stars.
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institution Organización Europea para la Investigación Nuclear
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publishDate 2018
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spelling cern-26323862022-08-20T06:05:18Zdoi:10.1007/JHEP11(2018)096http://cds.cern.ch/record/2632386engKopp, JoachimLaha, RanjanOpferkuch, TobyShepherd, WilliamCuckoo's Eggs in Neutron Stars: Can LIGO Hear Chirps from the Dark Sector?hep-exParticle Physics - Experimentgr-qcGeneral Relativity and Cosmologyastro-ph.COAstrophysics and Astronomyhep-phParticle Physics - PhenomenologyWe explore in detail the possibility that gravitational wave signals from binary inspirals are affected by a new force that couples only to dark matter particles. We discuss the impact of both the new force acting between the binary partners as well as radiation of the force carrier. We identify numerous constraints on any such scenario, ultimately concluding that observable effects on the dynamics of binary inspirals due to such a force are not possible if the dark matter is accrued during ordinary stellar evolution. Constraints arise from the requirement that the astronomical body be able to collect and bind at small enough radius an adequate number of dark matter particles, from the requirement that the particles thus collected remain bound to neutron stars in the presence of another neutron star, and from the requirement that the theory allows old neutron stars to exist and retain their charge. Thus, we show that any deviation from the predictions of general relativity observed in binary inspirals must be due either to the material properties of the inspiraling objects themselves, such as a tidal deformability, to a true fifth force coupled to baryons, or to a non-standard production mechanism for the dark matter cores of neutron stars. Viable scenarios of the latter type include production of dark matter in exotic neutron decays, or the formation of compact dark matter objects in the early Universe that later seed star formation or are captured by stars.arXiv:1807.02527MITP/18-058MITP-18-058oai:cds.cern.ch:26323862018-07-06
spellingShingle hep-ex
Particle Physics - Experiment
gr-qc
General Relativity and Cosmology
astro-ph.CO
Astrophysics and Astronomy
hep-ph
Particle Physics - Phenomenology
Kopp, Joachim
Laha, Ranjan
Opferkuch, Toby
Shepherd, William
Cuckoo's Eggs in Neutron Stars: Can LIGO Hear Chirps from the Dark Sector?
title Cuckoo's Eggs in Neutron Stars: Can LIGO Hear Chirps from the Dark Sector?
title_full Cuckoo's Eggs in Neutron Stars: Can LIGO Hear Chirps from the Dark Sector?
title_fullStr Cuckoo's Eggs in Neutron Stars: Can LIGO Hear Chirps from the Dark Sector?
title_full_unstemmed Cuckoo's Eggs in Neutron Stars: Can LIGO Hear Chirps from the Dark Sector?
title_short Cuckoo's Eggs in Neutron Stars: Can LIGO Hear Chirps from the Dark Sector?
title_sort cuckoo's eggs in neutron stars: can ligo hear chirps from the dark sector?
topic hep-ex
Particle Physics - Experiment
gr-qc
General Relativity and Cosmology
astro-ph.CO
Astrophysics and Astronomy
hep-ph
Particle Physics - Phenomenology
url https://dx.doi.org/10.1007/JHEP11(2018)096
http://cds.cern.ch/record/2632386
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AT laharanjan cuckooseggsinneutronstarscanligohearchirpsfromthedarksector
AT opferkuchtoby cuckooseggsinneutronstarscanligohearchirpsfromthedarksector
AT shepherdwilliam cuckooseggsinneutronstarscanligohearchirpsfromthedarksector