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A lower bound on the primordial black hole merger rate
We derive a lower bound on the merger rate of primordial black hole (PBH) binaries by estimating the maximal fraction of binaries that were perturbed between formation in the early Universe and merger, and computing a conservative merger rate of perturbed binaries. This implies robust constraints on...
| Autores principales: | , |
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| Lenguaje: | eng |
| Publicado: |
2019
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| Acceso en línea: | https://dx.doi.org/10.1103/PhysRevD.101.043015 http://cds.cern.ch/record/2687708 |
| _version_ | 1780963628284903424 |
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| author | Vaskonen, Ville Veermäe, Hardi |
| author_facet | Vaskonen, Ville Veermäe, Hardi |
| author_sort | Vaskonen, Ville |
| collection | CERN |
| description | We derive a lower bound on the merger rate of primordial black hole (PBH) binaries by estimating the maximal fraction of binaries that were perturbed between formation in the early Universe and merger, and computing a conservative merger rate of perturbed binaries. This implies robust constraints on the PBH abundance in the range 1–100M⊙. We further show that LIGO/Virgo design sensitivity has the potential to reach the PBH mass range of 10-2–103M⊙. The constraint from the merger rate of perturbed binaries is stronger if PBHs are initially spatially clustered. |
| id | cern-2687708 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 2019 |
| record_format | invenio |
| spelling | cern-26877082021-02-27T04:36:30Zdoi:10.1103/PhysRevD.101.043015http://cds.cern.ch/record/2687708engVaskonen, VilleVeermäe, HardiA lower bound on the primordial black hole merger ratehep-phParticle Physics - Phenomenologyastro-ph.HEAstrophysics and Astronomyastro-ph.COAstrophysics and AstronomyWe derive a lower bound on the merger rate of primordial black hole (PBH) binaries by estimating the maximal fraction of binaries that were perturbed between formation in the early Universe and merger, and computing a conservative merger rate of perturbed binaries. This implies robust constraints on the PBH abundance in the range 1–100M⊙. We further show that LIGO/Virgo design sensitivity has the potential to reach the PBH mass range of 10-2–103M⊙. The constraint from the merger rate of perturbed binaries is stronger if PBHs are initially spatially clustered.We derive a lower bound on the merger rate of primordial black hole (PBH) binaries by estimating the maximal fraction of binaries that were perturbed between formation in the early Universe and merger, and computing a conservative merger rate of perturbed binaries. This implies robust constraints on the PBH abundance in the range $1-100 M_\odot$. We further show that LIGO/Virgo design sensitivity has the potential to reach the PBH mass range of $10^{-2}-10^3 M_\odot$. The constraint from the merger rate of perturbed binaries is stronger if PBHs are initially spatially clustered.arXiv:1908.09752CERN-TH-2019-141KCL-PH-TH/2019-69oai:cds.cern.ch:26877082019-08-26 |
| spellingShingle | hep-ph Particle Physics - Phenomenology astro-ph.HE Astrophysics and Astronomy astro-ph.CO Astrophysics and Astronomy Vaskonen, Ville Veermäe, Hardi A lower bound on the primordial black hole merger rate |
| title | A lower bound on the primordial black hole merger rate |
| title_full | A lower bound on the primordial black hole merger rate |
| title_fullStr | A lower bound on the primordial black hole merger rate |
| title_full_unstemmed | A lower bound on the primordial black hole merger rate |
| title_short | A lower bound on the primordial black hole merger rate |
| title_sort | lower bound on the primordial black hole merger rate |
| topic | hep-ph Particle Physics - Phenomenology astro-ph.HE Astrophysics and Astronomy astro-ph.CO Astrophysics and Astronomy |
| url | https://dx.doi.org/10.1103/PhysRevD.101.043015 http://cds.cern.ch/record/2687708 |
| work_keys_str_mv | AT vaskonenville alowerboundontheprimordialblackholemergerrate AT veermaehardi alowerboundontheprimordialblackholemergerrate AT vaskonenville lowerboundontheprimordialblackholemergerrate AT veermaehardi lowerboundontheprimordialblackholemergerrate |