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First narrow-band search for continuous gravitational waves from known pulsars in advanced detector data

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First narrow-band search for continuous gravitational waves from known pulsars in advanced detector data. / LIGO Scientific Collaboration and Virgo Collaboration.

In: Physical Review D, Vol. 96, No. 12, 122006, 28.12.2017.

Research output: Contribution to journalJournal article

Harvard

LIGO Scientific Collaboration and Virgo Collaboration 2017, 'First narrow-band search for continuous gravitational waves from known pulsars in advanced detector data', Physical Review D, vol. 96, no. 12, 122006. https://doi.org/10.1103/PhysRevD.96.122006

APA

LIGO Scientific Collaboration and Virgo Collaboration (2017). First narrow-band search for continuous gravitational waves from known pulsars in advanced detector data. Physical Review D, 96(12), [122006]. https://doi.org/10.1103/PhysRevD.96.122006

Vancouver

LIGO Scientific Collaboration and Virgo Collaboration. First narrow-band search for continuous gravitational waves from known pulsars in advanced detector data. Physical Review D. 2017 Dec 28;96(12). 122006. https://doi.org/10.1103/PhysRevD.96.122006

Author

LIGO Scientific Collaboration and Virgo Collaboration. / First narrow-band search for continuous gravitational waves from known pulsars in advanced detector data. In: Physical Review D. 2017 ; Vol. 96, No. 12.

Bibtex

@article{41f6a54228544ff3b5ff8425367383f5,
title = "First narrow-band search for continuous gravitational waves from known pulsars in advanced detector data",
abstract = "Spinning neutron stars asymmetric with respect to their rotation axis are potential sources of continuous gravitational waves for ground-based interferometric detectors. In the case of known pulsars a fully coherent search, based on matched filtering, which uses the position and rotational parameters obtained from electromagnetic observations, can be carried out. Matched filtering maximizes the signal-to-noise (SNR) ratio, but a large sensitivity loss is expected in case of even a very small mismatch between the assumed and the true signal parameters. For this reason, narrow-band analysis methods have been developed, allowing a fully coherent search for gravitational waves from known pulsars over a fraction of a hertz and several spin-down values. In this paper we describe a narrow-band search of 11 pulsars using data from Advanced LIGO{\textquoteright}s first observing run. Although we have found several initial outliers, further studies show no significant evidence for the presence of a gravitational wave signal. Finally, we have placed upper limits on the signal strain amplitude lower than the spin-down limit for 5 of the 11 targets over the bands searched; in the case of J1813-1749 the spin-down limit has been beaten for the first time. For an additional 3 targets, the median upper limit across the search bands is below the spin-down limit. This is the most sensitive narrow-band search for continuous gravitational waves carried out so far.",
keywords = "General Relativity and Quantum Cosmology, Astrophysics - High Energy Astrophysical Phenomena",
author = "{LIGO Scientific Collaboration and Virgo Collaboration} and M Pitkin",
note = "{\textcopyright} 2019 American Physical Society",
year = "2017",
month = dec,
day = "28",
doi = "10.1103/PhysRevD.96.122006",
language = "English",
volume = "96",
journal = "Physical Review D",
issn = "1550-7998",
publisher = "American Physical Society",
number = "12",

}

RIS

TY - JOUR

T1 - First narrow-band search for continuous gravitational waves from known pulsars in advanced detector data

AU - LIGO Scientific Collaboration and Virgo Collaboration

AU - Pitkin, M

N1 - © 2019 American Physical Society

PY - 2017/12/28

Y1 - 2017/12/28

N2 - Spinning neutron stars asymmetric with respect to their rotation axis are potential sources of continuous gravitational waves for ground-based interferometric detectors. In the case of known pulsars a fully coherent search, based on matched filtering, which uses the position and rotational parameters obtained from electromagnetic observations, can be carried out. Matched filtering maximizes the signal-to-noise (SNR) ratio, but a large sensitivity loss is expected in case of even a very small mismatch between the assumed and the true signal parameters. For this reason, narrow-band analysis methods have been developed, allowing a fully coherent search for gravitational waves from known pulsars over a fraction of a hertz and several spin-down values. In this paper we describe a narrow-band search of 11 pulsars using data from Advanced LIGO’s first observing run. Although we have found several initial outliers, further studies show no significant evidence for the presence of a gravitational wave signal. Finally, we have placed upper limits on the signal strain amplitude lower than the spin-down limit for 5 of the 11 targets over the bands searched; in the case of J1813-1749 the spin-down limit has been beaten for the first time. For an additional 3 targets, the median upper limit across the search bands is below the spin-down limit. This is the most sensitive narrow-band search for continuous gravitational waves carried out so far.

AB - Spinning neutron stars asymmetric with respect to their rotation axis are potential sources of continuous gravitational waves for ground-based interferometric detectors. In the case of known pulsars a fully coherent search, based on matched filtering, which uses the position and rotational parameters obtained from electromagnetic observations, can be carried out. Matched filtering maximizes the signal-to-noise (SNR) ratio, but a large sensitivity loss is expected in case of even a very small mismatch between the assumed and the true signal parameters. For this reason, narrow-band analysis methods have been developed, allowing a fully coherent search for gravitational waves from known pulsars over a fraction of a hertz and several spin-down values. In this paper we describe a narrow-band search of 11 pulsars using data from Advanced LIGO’s first observing run. Although we have found several initial outliers, further studies show no significant evidence for the presence of a gravitational wave signal. Finally, we have placed upper limits on the signal strain amplitude lower than the spin-down limit for 5 of the 11 targets over the bands searched; in the case of J1813-1749 the spin-down limit has been beaten for the first time. For an additional 3 targets, the median upper limit across the search bands is below the spin-down limit. This is the most sensitive narrow-band search for continuous gravitational waves carried out so far.

KW - General Relativity and Quantum Cosmology

KW - Astrophysics - High Energy Astrophysical Phenomena

U2 - 10.1103/PhysRevD.96.122006

DO - 10.1103/PhysRevD.96.122006

M3 - Journal article

VL - 96

JO - Physical Review D

JF - Physical Review D

SN - 1550-7998

IS - 12

M1 - 122006

ER -