UNI-MB - logo
UMNIK - logo
 
E-viri
Recenzirano Odprti dostop
  • First low frequency all-sky...
    Aasi, J.; Abbott, B. P.; Agatsuma, K.; Ain, A.; Araya, M. C.; Bhagwat, S.; Bilenko, I. A.; Bock, O.; Bojtos, P.; Bork, R.; Born, M.; Buikema, A.; Buy, C.; Cohadon, P.-F.; Coulon, J.-P.; Cuoco, E.; Damjanic, M. D.; Dattilo, V.; Daveloza, H. P.; Del Pozzo, W.; Di Lieto, A.; Downes, T. P.; Du, Z.; Edwards, M. C.; Fafone, V.; Ferrante, I.; Frasconi, F.; Frei, Z.; Freise, A.; Frey, R.; Frolov, V. V.; Fulda, P.; Goetz, E.; Goetz, R.; Groot, P.; Hammer, D.; Haney, M.; Hanks, J.; Hollitt, S. E.; Holt, K.; Indik, N.; Izumi, K.; Kawabe, K.; Kim, C.; Koley, S.; Lazzaro, C.; Leaci, P.; Leavey, S.; Lee, C. H.; Levin, Y.; Logue, J.; Magaña-Sandoval, F.; Mandic, V.; Manske, M.; Marion, F.; Markosyan, A. S.; Mason, K.; Masserot, A.; McCarthy, R.; Meadors, G. D.; Meidam, J.; Mukherjee, S.; Mytidis, A.; Nagy, M. F.; Nguyen, T. T.; Normandin, M. E. N.; O’Dell, J.; Ogin, G. H.; Pillant, G.; Prodi, G. A.; Prokhorov, L.; Rabeling, D. S.; Sadeghian, L.; Saleem, M.; Sammut, L.; Schale, P.; Scott, S. M.; Shah, S.; Siemens, X.; Sorazu, B.; Steinlechner, J.; Sturani, R.; Talukder, D.; Tanner, D. B.; Taylor, R.; Tiwari, V.; Torres, C. V.; Tringali, M. C.; Tse, M.; Valdes, G.; van Heijningen, J.; Verkindt, D.; Wade, L. E.; Weaver, B.; Weinstein, A. J.; Welborn, T.; Whitcomb, S. E.; Wittel, H.; Yakushin, I.; Zadrożny, A.

    Physical review. D, 02/2016, Letnik: 93, Številka: 4
    Journal Article

    In this paper we present the results of the first low frequency all-sky search of continuous gravitational wave signals conducted on Virgo VSR2 and VSR4 data. The starting point was a set of short fast Fourier transforms, of length 8192 s, built from the calibrated strain data. On each data set a number of candidates has been selected, using the FrequencyHough transform in an incoherent step. Only coincident candidates among VSR2 and VSR4 have been examined in order to strongly reduce the false alarm probability, and the most significant candidates have been selected. The criteria we have used for candidate selection and for the coincidence step greatly reduce the harmful effect of large instrumental artifacts. Our upper limits on signal strain show an improvement of up to a factor of ~2 with respect to the results of previous all-sky searches at frequencies below 80 Hz.