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  All-sky search of NAUTILUS data

Astone, P., Bassan, M., Bonifazi, P., Borkowski, K. M., Budzynski, R. J., Chincarini, A., et al. (2008). All-sky search of NAUTILUS data. Classical and Quantum Gravity, 25(18): 184012. doi:10.1088/0264-9381/25/18/184012.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-13ED-2 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-13F0-7
Genre: Conference Paper

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 Creators:
Astone, P.1, Author
Bassan, M.1, Author
Bonifazi, P.1, Author
Borkowski, K. M.1, Author
Budzynski, R. J.1, Author
Chincarini, A.1, Author
Coccia, E.1, Author
D'Antonio, S.1, Author
Di Paolo Emilio, M.1, Author
Fafone, V.1, Author
Frasca, S.1, Author
Foffa, S.1, Author
Giordano, G.1, Author
Jaranowski, P.1, Author
Kondracki, W.1, Author
Krolak, A.1, Author
Maggiore, M.1, Author
Marini, A.1, Author
Minenkov, Y.1, Author
Modena, I.1, Author
Modestino, G.1, AuthorMoleti, A.1, AuthorPallottino, G. V.1, AuthorPalomba, C.1, AuthorParodi, R.1, AuthorPietka, M.1, AuthorPizzella, G.1, AuthorPletsch, Holger J.2, AuthorQuintieri, L.1, AuthorRicci, F.1, AuthorRocchi, A.1, AuthorRonga, F.1, AuthorSturani, R.1, AuthorTerenzi, R.1, AuthorVaccarone, R.1, AuthorVisco, M.1, Author more..
Affiliations:
1External Organizations, ou_persistent22              
2Observational Relativity and Cosmology, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society, Hannover, DE, ou_24011              

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 Abstract: A 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 lang922.2; 923.2rang Hz, the spindown range lang − 1.463 × 10−8; 0rang Hz/s and over the entire sky. We have divided the data into two 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 2 to 4 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 × 10−23 to 1.3 × 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%.

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 Dates: 2008-09-212008
 Publication Status: Published in print
 Pages: -
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 Rev. Method: Peer
 Identifiers: DOI: 10.1088/0264-9381/25/18/184012
eDoc: 398661
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Title: 12th Gravitational Wave Data Analysis Workshop
Place of Event: Cambridge, MA
Start-/End Date: 2007-12-13 - 2007-12-16

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Title: Classical and Quantum Gravity
Source Genre: Journal
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Pages: - Volume / Issue: 25 (18) Sequence Number: 184012 Start / End Page: - Identifier: ISSN: 0264-9381