Phys. Rev. Lett. 102, 161101 (2009) [4 pages]Gravitational-Wave Background as a Probe of the Primordial Black-Hole AbundanceSee Also: Erratum Received 25 December 2008; published 23 April 2009 The formation of a significant number of black holes (PBHs) is realized if and only if primordial density fluctuations have a large amplitude, which means that tensor perturbations generated from these scalar perturbations as a second-order effect are also large and comparable to the observational data. We show that pulsar timing data essentially rule out PBHs with 102–104M⊙, which were previously considered as a candidate of intermediate-mass black holes, and that PBHs with a mass range of 1020 to 1026 g, which serves as a candidate of dark matter, may be probed by future space-based laser interferometers and atomic interferometers. © 2009 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.102.161101
DOI:
10.1103/PhysRevLett.102.161101
PACS:
04.30.Db, 04.70.−s, 98.70.Vc, 98.80.−k
See AlsoErratum: Ryo Saito and Jun’ichi Yokoyama, Erratum: Gravitational-Wave Background as a Probe of the Primordial Black-Hole Abundance [Phys. Rev. Lett. 102, 161101 (2009)], Phys. Rev. Lett. 107, 069901 (2011). |
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