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  Results from high-frequency all-sky search for continuous gravitational waves from small-ellipticity sources

Dergachev, V., & Papa, M. A. (2021). Results from high-frequency all-sky search for continuous gravitational waves from small-ellipticity sources. Physical Review D, 103(6): 063019. doi:10.1103/PhysRevD.103.063019.

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 Creators:
Dergachev, Vladimir1, Author              
Papa, Maria Alessandra2, Author              
Affiliations:
1Searching for Continuous Gravitational Waves, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society, ou_2630691              
2Astrophysical and Cosmological Relativity, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, ou_1933290              

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Free keywords: General Relativity and Quantum Cosmology, gr-qc, Astrophysics, High Energy Astrophysical Phenomena, astro-ph.HE
 Abstract: We present the results of an all-sky search for continuous gravitational wave signals with frequencies in the 1700-2000 Hz range from neutron stars with ellipticity of 1e-8. The search employs the Falcon analysis pipeline on LIGO O2 public data. Our results improve by a factor greater than 5 over [citation 5]. Within the probed frequency range and aside from the detected outliers, we can exclude neutron stars with ellipticity of 1e-8 within 65 pc of Earth. We set upper limits on the gravitational wave amplitude that hold even for worst-case signal parameters. New outliers are found, some of which we are unable to associate with any instrumental cause. If any were associated with a rotating neutron star, this would likely be the fastest neutron star today.

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 Dates: 2020-12-082021
 Publication Status: Published in print
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 Identifiers: arXiv: 2012.04232
DOI: 10.1103/PhysRevD.103.063019
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Title: Physical Review D
  Other : Phys. Rev. D.
Source Genre: Journal
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Publ. Info: Lancaster, Pa. : American Physical Society
Pages: - Volume / Issue: 103 (6) Sequence Number: 063019 Start / End Page: - Identifier: ISSN: 0556-2821
CoNE: https://pure.mpg.de/cone/journals/resource/111088197762258