Implementation of an ƒ-statistic all-sky search for continuous gravitational waves in Virgo VSR1 data

Aasi, J. et al. (2014) Implementation of an ƒ-statistic all-sky search for continuous gravitational waves in Virgo VSR1 data. Classical and Quantum Gravity, 31(16), p. 165014. (doi: 10.1088/0264-9381/31/16/165014)

Abstract

We present an implementation of the -statistic to carry out the first search in data from the Virgo laser interferometric gravitational wave detector for periodic gravitational waves from a priori unknown, isolated rotating neutron stars. We searched a frequency f0 range from 100 Hz to 1 kHz and the frequency dependent spindown f1 range from Hz s−1 to zero. A large part of this frequency–spindown space was unexplored by any of the all-sky searches published so far. Our method consisted of a coherent search over two-day periods using the -statistic, followed by a search for coincidences among the candidates from the two-day segments. We have introduced a number of novel techniques and algorithms that allow the use of the fast Fourier transform (FFT) algorithm in the coherent part of the search resulting in a fifty-fold speed-up in computation of the -statistic with respect to the algorithm used in the other pipelines. No significant gravitational wave signal was found. The sensitivity of the search was estimated by injecting signals into the data. In the most sensitive parts of the detector band more than 90% of signals would have been detected with dimensionless gravitational-wave amplitude greater than .

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Grant, Mr Alastair and Bell, Mr Christopher and MacDonald, Miss Erin and Messenger, Dr Christopher and Bell, Dr Angus and Hammond, Professor Giles and Hild, Professor Stefan and Barr, Dr Bryan and Sorazu Lucio, Dr Borja and Reid, Professor Stuart and Craig, Mr Kieran and Lawrie, Mr Craig and Leavey, Mr Sean and Logue, Mr Joshua and Gill, Mr Colin and Heng, Professor Ik Siong and van Veggel, Dr Marielle and Newton, Dr Gavin and Torrie, Dr Calum and Davies, Mr Gareth and Hu, Mr Yiming and Graef, Dr Christian and Hendry, Professor Martin and Douglas, Miss Rebecca and Scott, Dr Jamie and Santiago Prieto, Mr Ricardo and Rowan, Professor Sheila and Abernathy, Mr Matthew and Kumar, Mr Rahul and MacArthur, Mr John and Martin, Dr Iain and Robertson, Professor Norna and Cumming, Dr Alan and Cunningham, Dr Liam and Woan, Professor Graham and Hough, Professor James and Huttner, Dr Sabina and Bassiri, Mr Riccardo and Campsie, Mr Paul and Strain, Professor Kenneth and Jones, Mr Russell and Haughian, Dr Karen and Pitkin, Dr Matthew and Murray, Dr Peter
• Authors: Aasi, J., Abbott, B. P., Abbott, R., Abbott, T., Abernathy, M.R., Accadia, T., Acernese, F., Ackley, K., Adams, C., Adams, T., Addesso, P., Adhikari, R. X., Affeldt, C., Agathos, M., Aggarwal, N., Aguiar, O. D., Ain, A., Ajith, P., Alemic, A., Allen, B., Allocca, A., Amariutei, D., Andersen, M., Anderson, R., Anderson, S. B., Anderson, W. G., Arai, K., Araya, M. C., Arceneaux, C., Areeda, J., Aston, S. M., Astone, P., Aufmuth, P., Aulbert, C., Austin, L., Aylott, B. E., Babak, S., Baker, P. T., Ballardin, G., Ballmer, S. W., Barayoga, J. C., Barbet, M., Barish, B. C., Barker, D., Barone, F., Barr, B., Barsotti, L., Barsuglia, M., Barton, M. A., Bartos, I., Bassiri, R., Basti, A., Batch, J. C., Bauchrowitz, J., Bauer, T. S., Behnke, B., Bejger, M., Beker, M. G., Belczynski, C., Bell, A.S., Bell, C., Bergmann, G., Bersanetti, D., Bertolini, A., Betzwieser, J., Beyersdorf, P. T., Bilenko, I. A., Billingsley, G., Birch, J., Biscans, S., Bitossi, M., Bizouard, M. A., Black, E., Blackburn, J. K., Blackburn, L., Blair, D., Bloemen, S., Blom, M., Bock, O., Bodiya, T. P., Boer, M., Bogaert, G., Bogan, C., Bond, C., Bondu, F., Bonelli, L., Bonnand, R., Bork, R., Born, M., Borkowski, K., Boschi, V., Bose, S., Bosi, L., Bradaschia, C., Brady, P. R., Braginsky, V. B., Branchesi, M., Brau, J. E., Briant, T., Bridges, D. O., Brillet, A., Brinkmann, M., Brisson, V., Brooks, A. F., Brown, D. A., Brown, D. D., Brückner, F., Buchman, S., Bulik, T., Bulten, H. J., Buonanno, A., Burman, R., Buskulic, D., Buy, C., Cadonati, L., Cagnoli, G., Calderón Bustillo, J., Calloni, E., Camp, J. B., Campsie, P., Cannon, K. C., Canuel, B., Cao, J., Capano, C. D., Carbognani, F., Carbone, L., Caride, S., Castiglia, A., Caudill, S., Cavalier, F., Cavalieri, R., Celerier, C., Cella, G., Cepeda, C., Cesarini, E., Chakraborty, R., Chalermsongsak, T., Chamberlin, S. J., Chao, S., Charlton, P., Mottin, E. C., Chen, X., Chen, Y., Chincarini, A., Chiummo, A., Cho, H. S., Chow, J., Christensen, N., Chu, Q., Chua, S. S. Y., Chung, S., Ciani, G., Clara, F., Clark, J. A., Cleva, F., Coccia, E., Cohadon, P. F., Colla, A., Collette, C., Colombini, M., Cominsky, L., Conte, A., Cook, D., Corbitt, T. R., Cordier, M., Cornish, N., Corpuz, A., Corsi, A., Costa, C. A., Coughlin, M. W., Coughlin, S., Coulon, J. P., Countryman, S., Couvares, P., Coward, D. M., Cowart, M., Coyne, D. C., Coyne, R., Craig, K., Creighton, J. D. E., Crowder, S. G., Cumming, A., Cunningham, L., Cuoco, E., Dahl, K., Dal Canton, T., Damjanic, M., Danilishin, S. L., D’Antonio, S., Danzmann, K., Dattilo, V., Daveloza, H., Davier, M., Davies, G.S., Daw, E. J., Day, R., Dayanga, T., Debreczeni, G., Degallaix, J., Deléglise, S., Pozzo, W. D., Denker, T., Dent, T., Dereli, H., Dergachev, V., Rosa, R. D., DeRosa, R. T., DeSalvo, R., Dhurandhar, S., Díaz, M., Fiore, L. D., Lieto, A. D., Palma, I. D., Virgilio, A. D., Donath, A., Donovan, F., Dooley, K. 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• College/School: College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering; College of Science and Engineering > School of Physics and Astronomy
• Research Centre: College of Science and Engineering > School of Physics and Astronomy > Institute for Gravitational Research
• Journal Name: Classical and Quantum Gravity
• Publisher: IOP Publishing Ltd.
• ISSN: 0264-9381
• ISSN (Online): 1361-6382