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21 papers · 1 filter
A stochastic search for intermittent gravitational-wave backgrounds
Jessica Lawrence, Kevin Turbang, Andrew Matas +3
A likely source of a gravitational-wave background (GWB) in the frequency band of the Advanced LIGO, Virgo and KAGRA detectors is the superposition of signals from the population o…
Targeted search for the kinematic dipole of the gravitational-wave background
Adrian Ka-Wai Chung, Alexander C. Jenkins, Joseph D. Romano +1
There is growing interest in using current and future gravitational-wave interferometers to search for anisotropies in the gravitational-wave background. One guaranteed anisotropic…
Constraints on r-modes and mountains on millisecond neutron stars in binary systems
P. B. Covas, M. A. Papa, R. Prix +1
Continuous gravitational waves are nearly monochromatic signals emitted by asymmetries in rotating neutron stars. These signals have not yet been detected. Deep all-sky searches fo…
All-sky Search for Continuous Gravitational Waves from Isolated Neutron Stars in the Early O3 LIGO Data
The LIGO Scientific Collaboration, the Virgo Collaboration, the KAGRA Collaboration +1587
We report on an all-sky search for continuous gravitational waves in the frequency band 20-2000\,Hz and with a frequency time derivative in the range of …
Common-spectrum process versus cross-correlation for gravitational-wave searches using pulsar timing arrays
Joseph D. Romano, Jeffrey S. Hazboun, Xavier Siemens +1
The North American Nanohertz Observatory for Gravitational Waves (NANOGrav) has recently reported strong statistical evidence for a common-spectrum red-noise process for all pulsar…
Frequentist versus Bayesian analyses: Cross-correlation as an (approximate) sufficient statistic for LIGO-Virgo stochastic background searches
Andrew Matas, Joseph D. Romano
Sufficient statistics are combinations of data in terms of which the likelihood function can be rewritten without loss of information. Depending on the data volume reduction, the u…