Constraints on cosmic strings from the LIGO-virgo gravitational-wave detectors

J. Aasi, N. A. Lockerbie, K. V. Tokmakov, LIGO Scientific Collaboration, Virgo Collaboration

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Abstract

Cosmic strings can give rise to a large variety of interesting astrophysical phenomena. Among them, powerful bursts of gravitational waves (GWs) produced by cusps are a promising observational signature. In this Letter we present a search for GWs from cosmic string cusps in data collected by the LIGO and Virgo gravitational wave detectors between 2005 and 2010, with over 625 days of live time. We find no evidence of GW signals from cosmic strings. From this result, we derive new constraints on cosmic string parameters, which complement and improve existing limits from previous searches for a stochastic background of GWs from cosmic microwave background measurements and pulsar timing data. In particular, if the size of loops is given by the gravitational backreaction scale, we place upper limits on the string tension G mu below 10-8 in some regions of the cosmic string parameter space.
Original languageEnglish
Article number131101
Number of pages10
JournalPhysical Review Letters
Volume112
Issue number13
DOIs
Publication statusPublished - 4 Apr 2014

Fingerprint

LIGO (observatory)
gravitational waves
strings
detectors
cusps
complement
pulsars
bursts
astrophysics
time measurement
signatures
microwaves

Keywords

  • cosmic strings
  • LIGO scientific collaboration
  • gravitational wave detection
  • pulsar timing

Cite this

Aasi, J., Lockerbie, N. A., Tokmakov, K. V., LIGO Scientific Collaboration, & Virgo Collaboration (2014). Constraints on cosmic strings from the LIGO-virgo gravitational-wave detectors. Physical Review Letters, 112(13), [131101]. https://doi.org/10.1103/PhysRevLett.112.131101
Aasi, J. ; Lockerbie, N. A. ; Tokmakov, K. V. ; LIGO Scientific Collaboration ; Virgo Collaboration. / Constraints on cosmic strings from the LIGO-virgo gravitational-wave detectors. In: Physical Review Letters. 2014 ; Vol. 112, No. 13.
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Aasi, J, Lockerbie, NA, Tokmakov, KV, LIGO Scientific Collaboration & Virgo Collaboration 2014, 'Constraints on cosmic strings from the LIGO-virgo gravitational-wave detectors', Physical Review Letters, vol. 112, no. 13, 131101. https://doi.org/10.1103/PhysRevLett.112.131101

Constraints on cosmic strings from the LIGO-virgo gravitational-wave detectors. / Aasi, J.; Lockerbie, N. A.; Tokmakov, K. V.; LIGO Scientific Collaboration; Virgo Collaboration.

In: Physical Review Letters, Vol. 112, No. 13, 131101, 04.04.2014.

Research output: Contribution to journalArticle

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