Pulsar Timing Array experiments probe the presence of possible scalar or pseudoscalar ultralight dark matter particles through decade-long timing of an ensemble of galactic millisecond radio pulsars. With the second data release of the European Pulsar Timing Array, we focus on the most robust scenario, in which dark matter interacts only gravitationally with ordinary baryonic matter. Our results show that ultralight particles with masses 10-24.0 eV 10-23.3 eV cannot constitute 100% of the measured local dark matter density, but can have at most local density ρ 0.3 GeV/cm3.

Smarra, C., Goncharov, B., Barausse, E., Antoniadis, J., Babak, S., Nielsen, A., et al. (2023). Second Data Release from the European Pulsar Timing Array: Challenging the Ultralight Dark Matter Paradigm. PHYSICAL REVIEW LETTERS, 131(17) [10.1103/PhysRevLett.131.171001].

Second Data Release from the European Pulsar Timing Array: Challenging the Ultralight Dark Matter Paradigm

Bonetti, M.;Bortolas, E.;Chalumeau, A.;Franchini, A.;Izquierdo-Villalba, D.;Possenti, A.;Samajdar, A.;Sesana, A.;Shaifullah, G.;
2023

Abstract

Pulsar Timing Array experiments probe the presence of possible scalar or pseudoscalar ultralight dark matter particles through decade-long timing of an ensemble of galactic millisecond radio pulsars. With the second data release of the European Pulsar Timing Array, we focus on the most robust scenario, in which dark matter interacts only gravitationally with ordinary baryonic matter. Our results show that ultralight particles with masses 10-24.0 eV 10-23.3 eV cannot constitute 100% of the measured local dark matter density, but can have at most local density ρ 0.3 GeV/cm3.
Articolo in rivista - Articolo scientifico
Astrophysics - High Energy Astrophysical Phenomena; Astrophysics - Cosmology and Nongalactic Astrophysics; Astrophysics - Astrophysics of Galaxies; General Relativity and Quantum Cosmology; High Energy Physics - Phenomenology
English
2023
131
17
171001
none
Smarra, C., Goncharov, B., Barausse, E., Antoniadis, J., Babak, S., Nielsen, A., et al. (2023). Second Data Release from the European Pulsar Timing Array: Challenging the Ultralight Dark Matter Paradigm. PHYSICAL REVIEW LETTERS, 131(17) [10.1103/PhysRevLett.131.171001].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/448600
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