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

Smarra, Clemente; Goncharov, Boris; Barausse, Enrico; Antoniadis, J.; Babak, S.; Bak Nielsen, A.-S.; Bassa, C. G.; Berthereau, A.; Bonetti, M.; Bortolas, E.; Brook, P. R.; Burgay, M.; Caballero, R. N.; Chalumeau, A.; Champion, D. J.; Chanlaridis, S.; Chen, S.; Cognard, I.; Desvignes, G.; Falxa, M.; Ferdman, R. D.; Franchini, A.; Gair, J. R.; Graikou, E.; Grießmeier, J. M.; Guillemot, L.; Guo, Y. J.; Hu, H.; Iraci, F.; Izquierdo-Villalba, D.; Jang, J.; Jawor, J.; Janssen, G. H.; Jessner, A.; Karuppusamy, R.; Keane, E. F.; Keith, M. J.; Kramer, M.; Krishnakumar, M. A.; Lackeos, K.; Lee, K. J.; Liu, K.; Liu, Y.; Lyne, A. G.; Mckee, J. W.; Main, R. A.; Mickaliger, M. B.; Niţu, I. C.; Parthasarathy, A.; Perera, B. B. P.; Perrodin, D.; Petiteau, A.; Porayko, N. K.; Possenti, A.; Leclere, H. Quelquejay; Samajdar, A.; Sanidas, S. A.; Sesana, A.; Shaifullah, G.; Speri, L.; Spiewak, R.; Stappers, B. W.; Susarla, S. C.; Theureau, G.; Tiburzi, C.; Van Der Wateren, E.; Vecchio, A.; Venkatraman Kris...

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.

Citation

Smarra, C., Goncharov, B., Barausse, E., Antoniadis, J., Babak, S., Bak Nielsen, A.-S., …European Pulsar Timing Array. (2023). Second Data Release from the European Pulsar Timing Array: Challenging the Ultralight Dark Matter Paradigm. Physical review letters, 131(17), Article 171001. https://doi.org/10.1103/PhysRevLett.131.171001

• Journal Article Type: Article
• Acceptance Date: Sep 25, 2023
• Online Publication Date: Oct 25, 2023
• Publication Date: Oct 27, 2023
• Deposit Date: Oct 30, 2023
• Publicly Available Date: Oct 31, 2023
• Journal: Physical Review Letters
• Print ISSN: 0031-9007
• Electronic ISSN: 1079-7114
• Publisher: American Physical Society
• Peer Reviewed: Peer Reviewed
• Volume: 131
• Issue: 17
• Article Number: 171001
• DOI: https://doi.org/10.1103/PhysRevLett.131.171001
• Keywords: General Physics and Astronomy
• Public URL: https://hull-repository.worktribe.com/output/4428722