NDLI: Constraints on cosmic strings from the ligo-virgo gravitational-wave detectors

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

Content Provider	NASA Technical Reports Server (NTRS)
Author	Adhikari, R. X. Abernathy, M. R. Allocca, A. Agathos, M. Ceron, E. A. Abbott, B. P. Adams, T. Ajith, P. Kanner, J. B. Anderson, S. B. Graff, P. B. Abbott, T. Aggarwal, N. Abbott, R. Adams, C. Camp, J. B. Affeldt, C. Accadia, T. Amariutei, D. Aasi, J. Abadie, J. Allen, B. Gehrels, N. Blackburn, L. Aguiar, O. D.
Copyright Year	2014
Description	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 (Newton's Constant x mass per unit length) below 10(exp â8) in some regions of the cosmic string parameter space.
File Size	250846
Page Count	10
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_20140017791
Archival Resource Key	ark:/13960/t6062jw6f
Language	English
Publisher Date	2014-04-04
Access Restriction	Open
Subject Keyword	Virgo Collaboration Collaboration Ligo Scientific Cosmic Microwave Background Radiation String Theory Astrophysics Events Data Acquisition Gravitational Waves Ligo Observatory Cosmology Strings Gamma Ray Bursts Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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