Journal
CLASSICAL AND QUANTUM GRAVITY
Volume 28, Issue 9, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0264-9381/28/9/094018
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Funding
- Royal Society
- NSF [PHY-0900735]
- NASA [NNX07AH22G]
- Rackham faculty
- Direct For Mathematical & Physical Scien
- Division Of Physics [0900735] Funding Source: National Science Foundation
- Science and Technology Facilities Council [ST/H00243X/1] Funding Source: researchfish
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LISA will detect gravitational waves from tens to hundreds of systems containing black holes with mass in the range 10(4) M-circle dot-10(7) M-circle dot. Black holes in this mass range are not well constrained by current electromagnetic observations, so LISA could significantly enhance our understanding of the astrophysics of such systems. In this paper, we describe a framework for combining LISA observations to make statements about massive black hole populations. We summarize the constraints that LISA observations of extrememass-ratio inspirals might be able to place on the mass function of black holes in the LISA range. We also describe how LISA observations can be used to choose between different models for the hierarchical growth of structure in the early Universe. We consider four models that differ in their prescription for the initial mass distribution of black hole seeds, and in the efficiency of accretion onto the black holes. We show that with as little as 3 months of LISA data, we can clearly distinguish between these models, even under relatively pessimistic assumptions about the performance of the detector and our knowledge of the gravitational waveforms.
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