**Title:** Gravitational Waves: Sources near and far\\
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**Description:** I will describe the coherent measurement and directional localization of gravitational waves with a 2 and 3-D pulsar timing arrays (PTAs).  An instructive example of primordial black holes illustrates how the same sources could be detected with both LIGO and PTAs.\\


{{:talksposters:2020_tutorials:gw.pdf| Here is the link}}