FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2023865577> ?p ?o ?g. }

• W2023865577 abstract "The problem of the detection and mapping of a stochastic gravitational wave background (SGWB), either cosmological or astrophysical, bears a strong semblance to the analysis of the cosmic microwave background (CMB) anisotropy and polarization, which too is a stochastic field, statistically described in terms of its correlation properties. An astrophysical gravitational wave background (AGWB) will likely arise from an incoherent superposition of unmodelled and/or unresolved sources and cosmological gravitational wave backgrounds (CGWB) are also predicted in certain scenarios. The basic statistic we use is the cross correlation between the data from a pair of detectors. In order to ``point'' the pair of detectors at different locations one must suitably delay the signal by the amount it takes for the gravitational waves (GW) to travel to both detectors corresponding to a source direction. Then the raw (observed) sky map of the SGWB is the signal convolved with a beam response function that varies with location in the sky. We first present a thorough analytic understanding of the structure of the beam response function using an analytic approach employing the stationary phase approximation. The true sky map is obtained by numerically deconvolving the beam function in the integral (convolution) equation. We adopt the maximum likelihood framework to estimate the true sky map using the conjugate gradient method that has been successfully used in the broadly similar, well-studied CMB map-making problem. We numerically implement and demonstrate the method on signal generated by simulated (unpolarized) SGWB for the GW radiometer consisting of the LIGO pair of detectors at Hanford and Livingston. We include ``realistic'' additive Gaussian noise in each data stream based on the LIGO-I noise power spectral density. The extension of the method to multiple baselines and polarized GWB is outlined. In the near future the network of GW detectors, including the Advanced LIGO and Virgo detectors that will be sensitive to sources within a thousand times larger spatial volume, could provide promising data sets for GW radiometry." @default.
• W2023865577 created "2016-06-24" @default.
• W2023865577 creator A5003822808 @default.
• W2023865577 creator A5008243369 @default.
• W2023865577 creator A5013365985 @default.
• W2023865577 creator A5021370148 @default.
• W2023865577 creator A5033421102 @default.
• W2023865577 creator A5067229262 @default.
• W2023865577 creator A5077445113 @default.
• W2023865577 date "2008-02-14" @default.
• W2023865577 modified "2023-10-12" @default.
• W2023865577 title "Gravitational wave radiometry: Mapping a stochastic gravitational wave background" @default.
• W2023865577 cites W1967162524 @default.
• W2023865577 cites W1973330634 @default.
• W2023865577 cites W1976579441 @default.
• W2023865577 cites W1980377833 @default.
• W2023865577 cites W2002343800 @default.
• W2023865577 cites W2003216349 @default.
• W2023865577 cites W2004196614 @default.
• W2023865577 cites W2012520655 @default.
• W2023865577 cites W2016109449 @default.
• W2023865577 cites W2017607353 @default.
• W2023865577 cites W2019709661 @default.
• W2023865577 cites W2044098444 @default.
• W2023865577 cites W2046131468 @default.
• W2023865577 cites W2051085854 @default.
• W2023865577 cites W2053150427 @default.
• W2023865577 cites W2057640706 @default.
• W2023865577 cites W2067858689 @default.
• W2023865577 cites W2074643037 @default.
• W2023865577 cites W2122682822 @default.
• W2023865577 cites W2129991788 @default.
• W2023865577 cites W2152098324 @default.
• W2023865577 cites W2159338507 @default.
• W2023865577 cites W2160974189 @default.
• W2023865577 cites W2165996922 @default.
• W2023865577 cites W2565472021 @default.
• W2023865577 cites W3023201122 @default.
• W2023865577 cites W3099488903 @default.
• W2023865577 cites W3100106672 @default.
• W2023865577 cites W3101842012 @default.
• W2023865577 cites W3102110065 @default.
• W2023865577 cites W3104112453 @default.
• W2023865577 cites W3105819899 @default.
• W2023865577 cites W3118259273 @default.
• W2023865577 doi "https://doi.org/10.1103/physrevd.77.042002" @default.
• W2023865577 hasPublicationYear "2008" @default.
• W2023865577 type Work @default.
• W2023865577 sameAs 2023865577 @default.
• W2023865577 citedByCount "67" @default.
• W2023865577 countsByYear W20238655772012 @default.
• W2023865577 countsByYear W20238655772013 @default.
• W2023865577 countsByYear W20238655772014 @default.
• W2023865577 countsByYear W20238655772015 @default.
• W2023865577 countsByYear W20238655772016 @default.
• W2023865577 countsByYear W20238655772017 @default.
• W2023865577 countsByYear W20238655772018 @default.
• W2023865577 countsByYear W20238655772019 @default.
• W2023865577 countsByYear W20238655772020 @default.
• W2023865577 countsByYear W20238655772021 @default.
• W2023865577 countsByYear W20238655772022 @default.
• W2023865577 countsByYear W20238655772023 @default.
• W2023865577 crossrefType "journal-article" @default.
• W2023865577 hasAuthorship W2023865577A5003822808 @default.
• W2023865577 hasAuthorship W2023865577A5008243369 @default.
• W2023865577 hasAuthorship W2023865577A5013365985 @default.
• W2023865577 hasAuthorship W2023865577A5021370148 @default.
• W2023865577 hasAuthorship W2023865577A5033421102 @default.
• W2023865577 hasAuthorship W2023865577A5067229262 @default.
• W2023865577 hasAuthorship W2023865577A5077445113 @default.
• W2023865577 hasBestOaLocation W20238655772 @default.
• W2023865577 hasConcept C120665830 @default.
• W2023865577 hasConcept C121332964 @default.
• W2023865577 hasConcept C147789679 @default.
• W2023865577 hasConcept C185592680 @default.
• W2023865577 hasConcept C190330329 @default.
• W2023865577 hasConcept C205049153 @default.
• W2023865577 hasConcept C207297109 @default.
• W2023865577 hasConcept C27753989 @default.
• W2023865577 hasConcept C30475298 @default.
• W2023865577 hasConcept C44870925 @default.
• W2023865577 hasConcept C62520636 @default.
• W2023865577 hasConcept C85725439 @default.
• W2023865577 hasConcept C94915269 @default.
• W2023865577 hasConceptScore W2023865577C120665830 @default.
• W2023865577 hasConceptScore W2023865577C121332964 @default.
• W2023865577 hasConceptScore W2023865577C147789679 @default.
• W2023865577 hasConceptScore W2023865577C185592680 @default.
• W2023865577 hasConceptScore W2023865577C190330329 @default.
• W2023865577 hasConceptScore W2023865577C205049153 @default.
• W2023865577 hasConceptScore W2023865577C207297109 @default.
• W2023865577 hasConceptScore W2023865577C27753989 @default.
• W2023865577 hasConceptScore W2023865577C30475298 @default.
• W2023865577 hasConceptScore W2023865577C44870925 @default.
• W2023865577 hasConceptScore W2023865577C62520636 @default.
• W2023865577 hasConceptScore W2023865577C85725439 @default.
• W2023865577 hasConceptScore W2023865577C94915269 @default.
• W2023865577 hasIssue "4" @default.
• W2023865577 hasLocation W20238655771 @default.
• W2023865577 hasLocation W20238655772 @default.

• next