Footprints of population III stars in the gravitational-wave background [SSA]

http://arxiv.org/abs/2109.09779


We investigate detection prospects of the gravitational-wave background (GWB) that originates from the merging of compact objects formed by the collapse of population III stars. Younger population I/II stars lead to a GWB in the LIGO/Virgo frequency band at the inspiral phase, while population III stars would likely show up at the later merger and ringdown phases. We show that, using a network of third-generation detectors, we may be able to separate a population I/II signal from a population III one, provided we can subtract individual coalescence events. A detection of a population III GWB could reveal important information, such as the average redshifted total mass.

Read this paper on arXiv…

K. Martinovic, C. Perigois, T. Regimbau, et. al.
Wed, 22 Sep 21
55/57

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