Second data release from the European pulsar timing array: challenging the ultralight dark matter paradigm
Physical Review Letters, 2023•APS
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≲ m≲ 10-23.3 eV cannot constitute 100% of the measured local dark …
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≲ m≲ 10-23.3 eV cannot constitute 100% of the measured local dark …
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 cannot constitute 100% of the measured local dark matter density, but can have at most local density .
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