Methods for the detection of gravitational waves from subsolar mass ultracompact binaries

Ryan Magee, Anne-Sylvie Deutsch, Phoebe McClincy, Chad Hanna, Christian Horst, Duncan Meacher, Cody Messick, Sarah Shandera, and Madeline Wade
Phys. Rev. D 98, 103024 – Published 30 November 2018

Abstract

We describe detection methods for extensions of gravitational wave searches to subsolar mass ultracompact binaries. Subsolar mass searches were previously carried out during the Initial LIGO era, and Advanced LIGO boasts a detection volume approximately 1000 times larger than Initial LIGO at design sensitivity. Low mass compact binary searches present computational challenges, and we suggest a way to mitigate the increased computational cost while retaining a sensitivity much greater than previous searches. Subsolar mass compact objects are of particular interest because they are not expected to form astrophysically. If detected, they could be evidence of primordial black holes or some other yet unknown formation mechanism. We consider a particular model of primordial black hole binary formation that would allow LIGO/Virgo to place constraints on this population within the context of dark matter, and we demonstrate how to obtain conservative bounds for the upper limit on the dark matter fraction.

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  • Received 16 August 2018

DOI:https://doi.org/10.1103/PhysRevD.98.103024

© 2018 American Physical Society

Physics Subject Headings (PhySH)

Gravitation, Cosmology & Astrophysics

Authors & Affiliations

Ryan Magee1,2, Anne-Sylvie Deutsch1,2, Phoebe McClincy2, Chad Hanna1,2,3, Christian Horst4, Duncan Meacher1,2,4, Cody Messick1,2, Sarah Shandera1,2, and Madeline Wade5

  • 1Institute for Gravitation and the Cosmos, The Pennsylvania State University, University Park, Pennsylvania 16802, USA
  • 2Department of Physics, The Pennsylvania State University, University Park, Pennsylvania 16802, USA
  • 3Department of Astronomy and Astrophysics, The Pennsylvania State University, University Park, Pennsylvania 16802, USA
  • 4University of Wisconsin-Milwaukee, Milwaukee, Wisconsin 53201, USA
  • 5Kenyon College, Gambier, Ohio 43022, USA

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Issue

Vol. 98, Iss. 10 — 15 November 2018

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