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Narrow-band search for gravitational waves from known pulsars using the second LIGO observing run

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Narrow-band search for gravitational waves from known pulsars using the second LIGO observing run. / LIGO Scientific Collaboration and Virgo Collaboration.

In: Physical Review D, Vol. 99, No. 12, 122002, 27.06.2019.

Research output: Contribution to journalJournal article

Harvard

LIGO Scientific Collaboration and Virgo Collaboration 2019, 'Narrow-band search for gravitational waves from known pulsars using the second LIGO observing run', Physical Review D, vol. 99, no. 12, 122002. https://doi.org/10.1103/PhysRevD.99.122002

APA

LIGO Scientific Collaboration and Virgo Collaboration (2019). Narrow-band search for gravitational waves from known pulsars using the second LIGO observing run. Physical Review D, 99(12), [122002]. https://doi.org/10.1103/PhysRevD.99.122002

Vancouver

LIGO Scientific Collaboration and Virgo Collaboration. Narrow-band search for gravitational waves from known pulsars using the second LIGO observing run. Physical Review D. 2019 Jun 27;99(12). 122002. https://doi.org/10.1103/PhysRevD.99.122002

Author

LIGO Scientific Collaboration and Virgo Collaboration. / Narrow-band search for gravitational waves from known pulsars using the second LIGO observing run. In: Physical Review D. 2019 ; Vol. 99, No. 12.

Bibtex

@article{362079077b034123b83f913ed1a71244,
title = "Narrow-band search for gravitational waves from known pulsars using the second LIGO observing run",
abstract = "Isolated spinning neutron stars, asymmetric with respect to their rotation axis, are expected to be sources of continuous gravitational waves. The most sensitive searches for these sources are based on accurate matched filtering techniques that assume the continuous wave to be phase locked with the pulsar beamedemission. While matched filtering maximizes the search sensitivity, a significant signal-to-noise ratio loss will happen in the case of a mismatch between the assumed and the true signal phase evolution. Narrowband algorithms allow for a small mismatch in the frequency and spin-down values of the pulsar whilecoherently integrating the entire dataset. In this paper, we describe a narrow-band search using LIGO O2 data for the continuous wave emission of 33 pulsars. No evidence of a continuous wave signal is found, and upper limits on the gravitational wave amplitude over the analyzed frequency and spin-down rangesare computed for each of the targets. In this search, we surpass the spin-down limit, namely, the maximum rotational energy loss due to gravitational waves emission for some of the pulsars already present in the LIGO O1 narrow-band search, such as J1400 − 6325, J1813 − 1246, J1833 − 1034, J1952 {\th} 3252, andfor new targets such as J0940 − 5428 and J1747 − 2809. For J1400 − 6325, J1833 − 1034, and J1747 − 2809, this is the first time the spin-down limit is surpassed.",
author = "{LIGO Scientific Collaboration and Virgo Collaboration} and M. Pitkin",
note = "{\circledC} 2019 American Physical Society",
year = "2019",
month = "6",
day = "27",
doi = "10.1103/PhysRevD.99.122002",
language = "English",
volume = "99",
journal = "Physical Review D",
issn = "1550-7998",
publisher = "American Physical Society",
number = "12",

}

RIS

TY - JOUR

T1 - Narrow-band search for gravitational waves from known pulsars using the second LIGO observing run

AU - LIGO Scientific Collaboration and Virgo Collaboration

AU - Pitkin, M.

N1 - © 2019 American Physical Society

PY - 2019/6/27

Y1 - 2019/6/27

N2 - Isolated spinning neutron stars, asymmetric with respect to their rotation axis, are expected to be sources of continuous gravitational waves. The most sensitive searches for these sources are based on accurate matched filtering techniques that assume the continuous wave to be phase locked with the pulsar beamedemission. While matched filtering maximizes the search sensitivity, a significant signal-to-noise ratio loss will happen in the case of a mismatch between the assumed and the true signal phase evolution. Narrowband algorithms allow for a small mismatch in the frequency and spin-down values of the pulsar whilecoherently integrating the entire dataset. In this paper, we describe a narrow-band search using LIGO O2 data for the continuous wave emission of 33 pulsars. No evidence of a continuous wave signal is found, and upper limits on the gravitational wave amplitude over the analyzed frequency and spin-down rangesare computed for each of the targets. In this search, we surpass the spin-down limit, namely, the maximum rotational energy loss due to gravitational waves emission for some of the pulsars already present in the LIGO O1 narrow-band search, such as J1400 − 6325, J1813 − 1246, J1833 − 1034, J1952 þ 3252, andfor new targets such as J0940 − 5428 and J1747 − 2809. For J1400 − 6325, J1833 − 1034, and J1747 − 2809, this is the first time the spin-down limit is surpassed.

AB - Isolated spinning neutron stars, asymmetric with respect to their rotation axis, are expected to be sources of continuous gravitational waves. The most sensitive searches for these sources are based on accurate matched filtering techniques that assume the continuous wave to be phase locked with the pulsar beamedemission. While matched filtering maximizes the search sensitivity, a significant signal-to-noise ratio loss will happen in the case of a mismatch between the assumed and the true signal phase evolution. Narrowband algorithms allow for a small mismatch in the frequency and spin-down values of the pulsar whilecoherently integrating the entire dataset. In this paper, we describe a narrow-band search using LIGO O2 data for the continuous wave emission of 33 pulsars. No evidence of a continuous wave signal is found, and upper limits on the gravitational wave amplitude over the analyzed frequency and spin-down rangesare computed for each of the targets. In this search, we surpass the spin-down limit, namely, the maximum rotational energy loss due to gravitational waves emission for some of the pulsars already present in the LIGO O1 narrow-band search, such as J1400 − 6325, J1813 − 1246, J1833 − 1034, J1952 þ 3252, andfor new targets such as J0940 − 5428 and J1747 − 2809. For J1400 − 6325, J1833 − 1034, and J1747 − 2809, this is the first time the spin-down limit is surpassed.

U2 - 10.1103/PhysRevD.99.122002

DO - 10.1103/PhysRevD.99.122002

M3 - Journal article

VL - 99

JO - Physical Review D

JF - Physical Review D

SN - 1550-7998

IS - 12

M1 - 122002

ER -