Publications

Citation

BibTex format

@article{Renzini:2019,
author = {Renzini, AI and Contaldi, CR},
journal = {PHYSICAL REVIEW LETTERS},
title = {Gravitational wave background sky maps from advanced LIGO O1 data},
url = {http://arxiv.org/abs/1811.12922v2},
year = {2019}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - We integrate the publicly available O1 LIGO time-domain data to obtain maximum-likelihood constraints on the Gravitational Wave Background (GWB) arising from stochastic, persistent signals. Our method produces sky-maps of the strain intensity I as a function of direction on the sky at a reference frequency f0. The data is integrated assuming a set of fixed power-law spectra for the signal. The maps provide upper limits on the amplitude of the GWB density ΩGW(f0) and any anisotropy around the background. We find 95\% confidence upper limits of ΩGW<4.8×10−7 at f0=50 Hz with similar constraints on a dipole modulation for the inspiral-dominated stochastic background case.
AU  - Renzini,AI
AU  - Contaldi,CR
PY  - 2019///
TI  - Gravitational wave background sky maps from advanced LIGO O1 data
T2  - PHYSICAL REVIEW LETTERS
UR  - http://arxiv.org/abs/1811.12922v2
UR  - http://hdl.handle.net/10044/1/66787
ER  -
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