Research output: Contribution to journal › Article

**Ultralight Dark Matter Resonates with Binary Pulsars.** / Blas, Diego; Nacir, Diana López; Sibiryakov, Sergey.

Research output: Contribution to journal › Article

Blas, D, Nacir, DL & Sibiryakov, S 2017, 'Ultralight Dark Matter Resonates with Binary Pulsars', *Physical Review Letters*, vol. 118, pp. 261102. https://doi.org/10.1103/PhysRevLett.118.261102

Blas, D., Nacir, D. L., & Sibiryakov, S. (2017). Ultralight Dark Matter Resonates with Binary Pulsars. *Physical Review Letters*, *118*, 261102. https://doi.org/10.1103/PhysRevLett.118.261102

Blas D, Nacir DL, Sibiryakov S. Ultralight Dark Matter Resonates with Binary Pulsars. Physical Review Letters. 2017 Jun 30;118:261102. https://doi.org/10.1103/PhysRevLett.118.261102

@article{39df179a391245e7826493f9a1b7c61e,

title = "Ultralight Dark Matter Resonates with Binary Pulsars",

abstract = "We consider the scenario where dark matter (DM) is represented by an ultralight classical scalar field performing coherent periodic oscillations. We point out that such DM perturbs the dynamics of binary systems either through its gravitational field or via direct coupling to ordinary matter. This perturbation gets resonantly amplified if the frequency of DM oscillations is close to a (half-)integer multiple of the orbital frequency of the system and leads to a secular variation of the orbital period. We suggest using binary pulsars as probes of this scenario and estimate their sensitivity. While the current accuracy of observations is not yet sufficient to probe the purely gravitational effect of DM, it already yields constraints on direct coupling that are competitive with other bounds. The sensitivity will increase with the upcoming radio observatories such as the Square Kilometer Array.",

keywords = "High Energy Physics - Phenomenology, Astrophysics - Cosmology and Nongalactic Astrophysics, Astrophysics - High Energy Astrophysical Phenomena",

author = "Diego Blas and Nacir, {Diana L{\'o}pez} and Sergey Sibiryakov",

year = "2017",

month = "6",

day = "30",

doi = "10.1103/PhysRevLett.118.261102",

language = "English",

volume = "118",

pages = "261102",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society (APS)",

}

TY - JOUR

T1 - Ultralight Dark Matter Resonates with Binary Pulsars

AU - Blas, Diego

AU - Nacir, Diana López

AU - Sibiryakov, Sergey

PY - 2017/6/30

Y1 - 2017/6/30

N2 - We consider the scenario where dark matter (DM) is represented by an ultralight classical scalar field performing coherent periodic oscillations. We point out that such DM perturbs the dynamics of binary systems either through its gravitational field or via direct coupling to ordinary matter. This perturbation gets resonantly amplified if the frequency of DM oscillations is close to a (half-)integer multiple of the orbital frequency of the system and leads to a secular variation of the orbital period. We suggest using binary pulsars as probes of this scenario and estimate their sensitivity. While the current accuracy of observations is not yet sufficient to probe the purely gravitational effect of DM, it already yields constraints on direct coupling that are competitive with other bounds. The sensitivity will increase with the upcoming radio observatories such as the Square Kilometer Array.

AB - We consider the scenario where dark matter (DM) is represented by an ultralight classical scalar field performing coherent periodic oscillations. We point out that such DM perturbs the dynamics of binary systems either through its gravitational field or via direct coupling to ordinary matter. This perturbation gets resonantly amplified if the frequency of DM oscillations is close to a (half-)integer multiple of the orbital frequency of the system and leads to a secular variation of the orbital period. We suggest using binary pulsars as probes of this scenario and estimate their sensitivity. While the current accuracy of observations is not yet sufficient to probe the purely gravitational effect of DM, it already yields constraints on direct coupling that are competitive with other bounds. The sensitivity will increase with the upcoming radio observatories such as the Square Kilometer Array.

KW - High Energy Physics - Phenomenology, Astrophysics - Cosmology and Nongalactic Astrophysics, Astrophysics - High Energy Astrophysical Phenomena

U2 - 10.1103/PhysRevLett.118.261102

DO - 10.1103/PhysRevLett.118.261102

M3 - Article

VL - 118

SP - 261102

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

ER -

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