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Full band all-sky search for periodic gravitational waves in the O1 LIGO data

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  • LIGO Scientific Collaboration and Virgo Collaboration
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Article number102003
<mark>Journal publication date</mark>11/05/2018
<mark>Journal</mark>Physical Review D
Issue number10
Volume97
Number of pages31
Publication statusPublished
Original languageEnglish

Abstract

We report on a new all-sky search for periodic gravitational waves in the frequency band 475–2000 Hz and with a frequency time derivative in the range of ½−1.0; þ0.1 × 10−8 Hz=s. Potential signals could be produced by a nearby spinning and slightly nonaxisymmetric isolated neutron star in our Galaxy. This
search uses the data from Advanced LIGO’s first observational run O1. No gravitational-wave signals were observed, and upper limits were placed on their strengths. For completeness, results from the separately published low-frequency search 20–475 Hz are included as well. Our lowest upper limit on worst-case (linearly polarized) strain amplitude h0 is ∼4 × 10−25 near 170 Hz, while at the high end of our frequency range, we achieve a worst-case upper limit of 1.3 × 10−24. For a circularly polarized source (most favorable
orientation), the smallest upper limit obtained is ∼1.5 × 10−25.

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© 2018 American Physical Society