Abstract
Searches for the stochastic GW background are currently ongoing in NANOGrav, EPTA, PPTA and the IPTA. Within the EPTA, I am co-leading the search for an anisotropic stochastic GW background, based on the formalism introduced in Mingarelli et al. (2013) (equivalently Chap. 2). Indeed, in Mingarelli et al. (2013) we show that the stochastic GWB may have a fractional degree of anisotropy of around 20 % at high frequencies, while Taylor and Gair (2013) show the effect of background-finiteness on the angular power-spectrum of the GWB. Expanding the standard search for an isotropic background to an anisotropic background allows one to place constraints on its degree of anisotropy, if any.
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Mingarelli, C.M.F. (2016). Conclusions. In: Gravitational Wave Astrophysics with Pulsar Timing Arrays. Springer Theses. Springer, Cham. https://doi.org/10.1007/978-3-319-18401-2_5
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DOI: https://doi.org/10.1007/978-3-319-18401-2_5
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