All-sky search of NAUTILUS data

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dc.creatorAstone, P.
dc.creatorBassan, M.
dc.creatorBonifazi, P.
dc.creatorBorkowski, K. M.
dc.creatorBudzyński, R. J.
dc.creatorChincarini, A.
dc.creatorCoccia, E.
dc.creatorD'Antonio, S.
dc.creatorEmilio, M. Di Paolo
dc.creatorFafone, V.
dc.creatorFrasca, S.
dc.creatorFoffa, S.
dc.creatorGiordano, G.
dc.creatorJaranowski, P.
dc.creatorKondracki, W.
dc.creatorKrólak, A.
dc.creatorMaggiore, M.
dc.creatorMarini, A.
dc.creatorMinenkov, Y.
dc.creatorModena, I.
dc.creatorModestino, G.
dc.creatorMoleti, A.
dc.creatorPallottino, G. V.
dc.creatorPalomba, C.
dc.creatorParodi, R.
dc.creatorPietka, M.
dc.creatorPizzella, G.
dc.creatorPletsch, H. J.
dc.creatorQuintieri, L.
dc.creatorRicci, F.
dc.creatorRocchi, A.
dc.creatorRonga, F.
dc.creatorSturani, R.
dc.creatorTerenzi, R.
dc.creatorVaccarone, R.
dc.creatorVisco, M.
dc.date2008-09-01
dc.date.accessioned2026-07-07T11:45:42Z
dc.date.available2026-07-07T11:45:42Z
dc.descriptionA search for periodic gravitational-wave signals from isolated neutron stars in the NAUTILUS detector data is presented. We have analyzed half a year of data over the frequency band $<922.2; 923.2>$ Hz, the spindown range $<-1.463\times10^{-8}; 0>$ Hz/s and over the entire sky. We have divided the data into 2 day stretches and we have analyzed each stretch coherently using matched filtering. We have imposed a low threshold for the optimal detection statistic to obtain a set of candidates that are further examined for coincidences among various data stretches. For some candidates we have also investigated the change of the signal-to-noise ratio when we increase the observation time from two to four days. Our analysis has not revealed any gravitational-wave signals. Therefore we have imposed upper limits on the dimensionless gravitational-wave amplitude over the parameter space that we have searched. Depending on frequency, our upper limit ranges from $3.4 \times 10^{-23}$ to $1.3 \times 10^{-22}$. We have attempted a statistical verification of the hypotheses leading to our conclusions. We estimate that our upper limit is accurate to within 18%.
dc.descriptionLaTeX, 12 pages
dc.identifierhttps://arxiv.org/abs/0809.0273
dc.identifierhttp://arxiv.org/abs/0809.0273
dc.identifierClass.Quant.Grav.25:184012,2008
dc.identifierdoi:10.1088/0264-9381/25/18/184012
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/201968
dc.subjectGeneral Relativity and Quantum Cosmology
dc.titleAll-sky search of NAUTILUS data
dc.typetext

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