Coexistence Test of Primordial Black Holes and Particle Dark Matter from Diffractive Lensing
If dark matter (DM) consists of primordial black holes (PBHs) and particles simultaneously, PBHs are generically embedded within particle DM halos. Such "dressed PBHs" (dPBHs) are subject to modified constraints compared to PBHs and can contribute to significant DM abundance in the mass range 10^{-1}-10^{2}M_{⊙}. We show that diffractive lensing of chirping gravitational waves from binary mergers can not only discover, but can also identify dPBH lenses and discriminate them from bare PBHs on the event-by-event basis, with potential to definitively establish the coexistence of subdominant PBHs and particle DM.
Authors
- Sunghoon Jung (ORCID: https://orcid.org/0000-0002-4456-0259)
- Philip Lu (ORCID: https://orcid.org/0000-0003-1231-6996)
- Han Gil Choi (ORCID: https://orcid.org/0000-0002-1390-9024)
- Volodymyr Takhistov (ORCID: https://orcid.org/0000-0003-2647-3431)
Institutions
- High Energy Accelerator Research Organization (JP)
- Seoul National University (KR)
- Kavli Institute for the Physics and Mathematics of the Universe (JP)
- The Graduate University for Advanced Studies, SOKENDAI (JP)
- Institute for Basic Science (KR)
- The University of Tokyo (JP)
Publication Details
- Journal
- Physical Review Letters
- Published
- 2024-09-05
- DOI
- https://doi.org/10.1103/physrevlett.133.101002
- Citations
- 10
- Primary Topic
- Pulsars and Gravitational Waves Research
- Type
- article
- Field-Weighted Citation Impact
- 3.32
Funders
- Ministry of Education, Culture, Sports, Science and Technology
- National Research Foundation of Korea
- Institute for Basic Science
- Japan Society for the Promotion of Science