Title

Searches for Continuous Gravitational Waves from Fifteen Supernova Remnants and Fomalhaut b with Advanced LIGO

Document Type

Article

Publication Date

2019

Abstract

We describe directed searches for continuous gravitational waves from sixteen well localized candidate neutron stars assuming none of the stars has a binary companion. The searches were directed toward fifteen supernova remnants and Fomalhaut~b, an extrasolar planet candidate which has been suggested to be a nearby old neutron star. Each search covered a broad band of frequencies and first and second time derivatives. After coherently integrating spans of data from the first Advanced LIGO observing run of 3.5--53.7 days per search, applying data-based vetoes and discounting known instrumental artifacts, we found no astrophysical signals. We set upper limits on intrinsic gravitational wave strain as strict as 1×10−25, on fiducial neutron star ellipticity as strict as 2×10−9, and on fiducial r-mode amplitude as strict as 3×10−8.

Journal Title

Astrophysical Journal

Volume

875

Issue

2

First Page

11656

DOI

10.3847/1538-4357/ab113b

First Department

Physics

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