TY - JOUR
T1 - Constraints on Cosmic Strings from the LIGO-Virgo Gravitational-Wave Detectors
AU - Aasi, J.
AU - Agathos, M.
AU - Beker, M.G.
AU - Bertolini, A.
AU - Blom, M.R.
AU - Bulten, H.J.
AU - Del Pozzo, W.
AU - Jonker, R.
AU - Li, T.G.F.
AU - Meidam, J.
AU - van den Brand, J.F.J.
AU - van der Putten, S.
AU - LIGO Sci, Collaboration
AU - Virgo, Collaboration
PY - 2014
Y1 - 2014
N2 - 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 Gμ below 10-8 in some regions of the cosmic string parameter space. © 2014 American Physical Society.
AB - 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 Gμ below 10-8 in some regions of the cosmic string parameter space. © 2014 American Physical Society.
U2 - 10.1103/PhysRevLett.112.131101
DO - 10.1103/PhysRevLett.112.131101
M3 - Article
SN - 0031-9007
VL - 112
JO - Physical Review Letters
JF - Physical Review Letters
IS - 13
M1 - 131101
ER -