A resampling algorithm to detect continuous gravitational-wave signals from neutron stars in binary systems

International audienceA rapidly rotating neutron star (NS) with non-axisymmetric deformations is an interesting type of continuous gravitational-Wave (CW) source for the advanced LIGO–Virgo detectors. Within the sensitivity bands of these detectors, more than half of the known pulsars (i.e. 1200) in our galaxy are in binary systems. All CW signals are modulated by the doppler effect due to Earth’s motion, while for sources in binary systems there is an extra modulation due to the source orbital motion, which further decreases the detectability of the signal, if not properly taken into account. In order to correct for these modulations, one would need to know at least the orbital parameters and source sky location with very high accuracy. For unknown parameters the correction implies an extensive computational burden. In this paper we investigate—for the first time—the application and robustness of binary time-domain corrections to directed narrowband searches through the stroboscopic resampling, which has already been applied in several CW searches for isolated NSs. We also present a 90% confidence-level sensitivity estimation for a Scorpius X-1 directed narrowband search on publicly available data from the second observing advanced LIGO–Virgo run

First Operation of a Free-Electron Laser Generating GW Power Radiation at 32-Nm Wavelength

Many scientific disciplines ranging from physics, chemistry and biology to material sciences, geophysics and medical diagnostics need a powerful X-ray source with pulse lengths in the femtosecond range. This would allow, for example, time-resolved observation of chemical reactions with atomic resolution. Such radiation of extreme intensity, and tunable over a wide range of wavelengths, can be accomplished using high-gain free-electron lasers (FEL). Here we present results of the first successful operation of an FEL at a wavelength of 32 nm, with ultra-short pulses (25 fs FWHM), a peak power at the Gigawatt level, and a high degree of transverse and longitudinal coherence. The experimental data are in full agreement with theory. This is the shortest wavelength achieved with an FEL to date and an important milestone towards a user facility designed for wavelengths down to 6 nm. With a peak brilliance exceeding the state-of-the-art of synchrotron radiation sources by seven orders of magnitude, this device opens a new field of experiments, and it paves the way towards sources with even shorter wavelengths, such as the Linac Coherent Light Source at Stanford, USA, and the European X-ray Free Electron Laser Facility in Hamburg, Germany

SuperB Progress Report: Detector

This report describes the present status of the detector design for SuperB. It is one of four separate progress reports that, taken collectively, describe progress made on the SuperB Project since the publication of the SuperB Conceptual Design Report in 2007 and the Proceedings of SuperB Workshop VI in Valencia in 2008

SuperB Progress Reports - Detector

none240This report describes the present status of the detector design for SuperB. It is one of four separate progress reports that, taken collectively, describe progress made on the SuperB Project since the publication of the SuperB Conceptual Design Report in 2007 and the Proceedings of SuperB Workshop VI in Valencia in 2008. The other three reports relate to Physics, Accelerator and Computing.noneE. Grauges; G. Donvito; V. Spinoso; M. Manghisoni; V. Re; G. Traversi; G. Eigen; D. Fehlker; L. Helleve; A. Carbone; R. Di Sipio; A. Gabrielli; D. Galli; F. Giorgi; U. Marconi; S. Perazzini; C. Sbarra; V. Vagnoni; S. Valentinetti; M. Villa; A. Zoccoli; C. Cheng; A. Chivukula; D. Doll; B. Echenard; D. Hitlin; P. Ongmongkolkul; F. Porter; A. Rakitin; M. Thomas; R. Zhu; G. Tatishvili; R. Andreassen; C. Fabby; B. Meadows; A. Simpson; M. Sokoloff; K. Tomko; A. Fella; M. Andreotti; W. Baldini; R. Calabrese; V. Carassiti; G. Cibinetto; A. Cotta Ramusino; A. Gianoli; E. Luppi; M. Munerato; V. Santoro; L. Tomassetti; D. Stoker; O. Bezshyyko; G. Dolinska; N. Arnaud; C. Beigbeder; F. Bogard; D. Breton; L. Burmistrov; D. Charlet; J. Maalmi; L. Perez; V. Puill; A. Stocchi; V. Tocut; S. Wallon; G. Wormser; D. Brown; A. Calcaterra; R. de Sangro; G. Felici; G. Finocchiaro; P. Patteri; I. Peruzzi; M. Piccolo; M. Rama; S. Fantinel; G. Maron; E. Ben-Haim; G. Calderini; H. Lebbolo; G. Marchiori; R. Cenci; A. Jawahery; D.A. Roberts; D. Lindemann; P. Patel; S. Robertson; D. Swersky; P. Biassoni; M. Citterio; V. Liberali; F. Palombo; A. Stabile; S. Stracka; A. Aloisio; S. Cavaliere; G. De Nardo; A. Doria; R. Giordano; A. Ordine; S. Pardi; G. Russo; C. Sciacca; A.Y. Barniakov; M.Y. Barniakov; V.E. Blinov; V.P. Druzhinin; V.B.. Golubev; S.A. Kononov; E. Kravchenko; A.P. Onuchin; S.I. Serednyakov; Y.I. Skovpen; E.P. Solodov; M. Bellato; M. Benettoni; M. Corvo; A. Crescente; F. Dal Corso; C. Fanin; E. Feltresi; N. Gagliardi; M. Morandin; M. Posocco; M. Rotondo; R. Stroili; C. Andreoli; L. Gaioni; E. Pozzati; L. Ratti; V. Speziali; D. Aisa; M. Bizzarri; C. Cecchi; S. Germani; P. Lubrano; E. Manoni; A. Papi; A. Piluso ; A. Rossi; M. Lebeau; C. Avanzini; G. Batignani; S. Bettarini; F. Bosi; M. Ceccanti; A. Cervelli; A. Ciampa; F. Crescioli; M. Dell’Orso; D. Fabiani; F. Forti; P. Giannetti; M. Giorgi; S. Gregucci; A. Lusiani; P. Mammini; G. Marchiori; M. Massa; E. Mazzoni; F. Morsani; N. Neri; E. Paoloni; E. Paoloni; M. Piendibene; A. Profeti; G. Rizzo; L. Sartori; J. Walsh; E. Yurtsev; D.M. Asner; J. E. Fast; R.T. Kouzes; A. Bevan; F. Gannaway; J. Mistry; C. Walker; C.A.J. Brew; R.E. Coath; J.P. Crooks; R.M. Harper; A. Lintern; A. Nichols; M. Staniztki; R. Turchetta; F.F. Wilson; V. Bocci; G. Chiodi; R. Faccini; C. Gargiulo; D. Pinci; L. Recchia; D. Ruggieri; A. Di Simone; P. Branchini; A. Passeri; F. Ruggieri; E. Spiriti; D. Aston; M. Convery; G. Dubois-Felsmann; W. Dunwoodie; M. Kelsey; P. Kim; M. Kocian; D. Leith; S. Luitz; D. MacFarlane; B. Ratcliff; M. Sullivan; J. Va’vra; W. Wisniewski; W. Yang; K. Shougaev; A. Soffer; F. Bianchi; D. Gamba; G. Giraudo; P. Mereu; G. Dalla Betta; G. Fontana; G. Soncini; M. Bomben; L. Bosisio; P. Cristaudo; G. Giacomini; D. Jugovaz; L. Lanceri; I. Rashevskaya; G. Venier; L. Vitale; R. Henderson; J.-F. Caron; C. Hearty; P. Lu; R. So; P. Taras; A. Agarwal; J. Franta; J.M. RoneyE., Grauges; G., Donvito; V., Spinoso; M., Manghisoni; V., Re; G., Traversi; G., Eigen; D., Fehlker; L., Helleve; A., Carbone; R., Di Sipio; A., Gabrielli; D., Galli; F., Giorgi; U., Marconi; S., Perazzini; C., Sbarra; V., Vagnoni; S., Valentinetti; M., Villa; A., Zoccoli; C., Cheng; A., Chivukula; D., Doll; B., Echenard; D., Hitlin; P., Ongmongkolkul; F., Porter; A., Rakitin; M., Thomas; R., Zhu; G., Tatishvili; R., Andreassen; C., Fabby; B., Meadows; A., Simpson; M., Sokoloff; K., Tomko; A., Fella; Andreotti, Mirco; Baldini, Wander; Calabrese, Roberto; Carassiti, Vittore; Cibinetto, Gianluigi; COTTA RAMUSINO, Angelo; Gianoli, Alberto; Luppi, Eleonora; Munerato, Mauro; Santoro, Valentina; Tomassetti, Luca; D., Stoker; O., Bezshyyko; G., Dolinska; N., Arnaud; C., Beigbeder; F., Bogard; D., Breton; L., Burmistrov; D., Charlet; J., Maalmi; L., Perez; V., Puill; A., Stocchi; V., Tocut; S., Wallon; G., Wormser; D., Brown; A., Calcaterra; R., de Sangro; G., Felici; G., Finocchiaro; P., Patteri; I., Peruzzi; M., Piccolo; M., Rama; S., Fantinel; G., Maron; E., Ben Haim; G., Calderini; H., Lebbolo; G., Marchiori; R., Cenci; A., Jawahery; D. A., Roberts; D., Lindemann; P., Patel; S., Robertson; D., Swersky; P., Biassoni; M., Citterio; V., Liberali; F., Palombo; A., Stabile; S., Stracka; A., Aloisio; S., Cavaliere; G., De Nardo; A., Doria; R., Giordano; A., Ordine; S., Pardi; G., Russo; C., Sciacca; A. Y., Barniakov; M. Y., Barniakov; V. E., Blinov; V. P., Druzhinin; Golubev, V. B.; S. A., Kononov; E., Kravchenko; A. P., Onuchin; S. I., Serednyakov; Y. I., Skovpen; E. P., Solodov; M., Bellato; M., Benettoni; Corvo, Marco; A., Crescente; F., Dal Corso; C., Fanin; E., Feltresi; N., Gagliardi; M., Morandin; M., Posocco; M., Rotondo; R., Stroili; C., Andreoli; L., Gaioni; E., Pozzati; L., Ratti; V., Speziali; D., Aisa; M., Bizzarri; C., Cecchi; S., Germani; P., Lubrano; E., Manoni; A., Papi; A., Piluso; A., Rossi; M., Lebeau; C., Avanzini; G., Batignani; S., Bettarini; F., Bosi; M., Ceccanti; A., Cervelli; A., Ciampa; F., Crescioli; M., Dell’Orso; D., Fabiani; F., Forti; P., Giannetti; M., Giorgi; S., Gregucci; A., Lusiani; P., Mammini; G., Marchiori; M., Massa; E., Mazzoni; F., Morsani; N., Neri; E., Paoloni; E., Paoloni; M., Piendibene; A., Profeti; G., Rizzo; L., Sartori; J., Walsh; E., Yurtsev; D. M., Asner; J. E., Fast; R. T., Kouzes; A., Bevan; F., Gannaway; J., Mistry; C., Walker; C. A. J., Brew; R. E., Coath; J. P., Crooks; R. M., Harper; A., Lintern; A., Nichols; M., Staniztki; R., Turchetta; F. F., Wilson; V., Bocci; G., Chiodi; R., Faccini; C., Gargiulo; D., Pinci; L., Recchia; D., Ruggieri; A., Di Simone; P., Branchini; A., Passeri; F., Ruggieri; E., Spiriti; D., Aston; M., Convery; G., Dubois Felsmann; W., Dunwoodie; M., Kelsey; P., Kim; M., Kocian; D., Leith; S., Luitz; D., Macfarlane; B., Ratcliff; M., Sullivan; J., Va’Vra; W., Wisniewski; W., Yang; K., Shougaev; A., Soffer; F., Bianchi; D., Gamba; G., Giraudo; P., Mereu; G., Dalla Betta; G., Fontana; G., Soncini; M., Bomben; L., Bosisio; P., Cristaudo; G., Giacomini; D., Jugovaz; L., Lanceri; I., Rashevskaya; G., Venier; L., Vitale; R., Henderson; J. F., Caron; C., Hearty; P., Lu; R., So; P., Taras; A., Agarwal; J., Franta; J. M., Rone

SuperB: A High-Luminosity Asymmetric e+ e- Super Flavor Factory. Conceptual Design Report.

The physics objectives of SuperB, an asymmetric electron-positron collider with a luminosity above 10^36/cm^2/s are described, together with the conceptual design of a novel low emittance design that achieves this performance with wallplug power comparable to that of the current B Factories, and an upgraded detector capable of doing the physics in the SuperB environment