download0 view130
twitter facebook

공공누리This item is licensed Korea Open Government License

Title
Constraints on Cosmic Strings from the LIGO-Virgo Gravitational-Wave Detectors
Author(s)
J.Aasi강궁원김정리장행진
Publication Year
2014-04-04
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 Gμ below 10−8 in some regions of the cosmic string parameter space.
Keyword
Cosmic strings; GW detectors
Journal Title
Phys. Rev. Lett.
ISSN
0031-9007
Files in This Item:
There are no files associated with this item.
Appears in Collections:
7. KISTI 연구성과 > 학술지 발표논문
URI
https://repository.kisti.re.kr/handle/10580/14308
http://www.ndsl.kr/ndsl/search/detail/article/articleSearchResultDetail.do?cn=NART69366603
Export
RIS (EndNote)
XLS (Excel)
XML

Browse