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9 results on '"Vetrugno, D."'

1. Laser Interferometer Space Antenna

Author

Amaro-Seoane, P, Audley, H, Babak, S, Baker, J, Barausse, E, Bender, P, Berti, E, Binetruy, P, Born, M, Bortoluzzi, D, Camp, J, Caprini, C, Cardoso, V, Colpi, M, Conklin, J, Cornish, N, Cutler, C, Danzmann, K, Dolesi, R, Ferraioli, L, Ferroni, V, Fitzsimons, E, Gair, J, Bote, LG, Giardini, D, Gibert, F, Grimani, C, Halloin, H, Heinzel, G, Hertog, T, Hewitson, M, Holley-Bockelmann, K, Hollington, D, Hueller, M, Inchauspe, H, Jetzer, P, Karnesis, N, Killow, C, Klein, A, Klipstein, B, Korsakova, N, Larson, SL, Livas, J, Lloro, I, Man, N, Mance, D, Martino, J, Mateos, I, McKenzie, K, McWilliams, ST, Miller, C, Mueller, G, Nardini, G, Nelemans, G, Nofrarias, M, Petiteau, A, Pivato, P, Plagnol, E, Porter, E, Reiche, J, Robertson, D, Robertson, N, Rossi, E, Russano, G, Schutz, B, Sesana, A, Shoemaker, D, Slutsky, J, Sopuerta, CF, Sumner, T, Tamanini, N, Thorpe, I, Troebs, M, Vallisneri, M, Vecchio, A, Vetrugno, D, Vitale, S, Volonteri, M, Wanner, G, Ward, H, Wass, P, Weber, W, Ziemer, J, and Zweifel, P

Subjects
General Relativity and Quantum Cosmology, Physics::Space Physics, Astrophysics::Instrumentation and Methods for Astrophysics, astro-ph.IM
Abstract

Following the selection of The Gravitational Universe by ESA, and the successful flight of LISA Pathfinder, the LISA Consortium now proposes a 4 year mission in response to ESA's call for missions for L3. The observatory will be based on three arms with six active laser links, between three identical spacecraft in a triangular formation separated by 2.5 million km. LISA is an all-sky monitor and will offer a wide view of a dynamic cosmos using Gravitational Waves as new and unique messengers to unveil The Gravitational Universe. It provides the closest ever view of the infant Universe at TeV energy scales, has known sources in the form of verification binaries in the Milky Way, and can probe the entire Universe, from its smallest scales near the horizons of black holes, all the way to cosmological scales. The LISA mission will scan the entire sky as it follows behind the Earth in its orbit, obtaining both polarisations of the Gravitational Waves simultaneously, and will measure source parameters with astrophysically relevant sensitivity in a band from below $10^{-4}\,$Hz to above $10^{-1}\,$Hz.

Published
2017

2. Triangulum galaxy viewed byPlanck

Author

De Paolis, F, Gurzadyan, V G, Nucita, A A, Chemin, L, Qadir, A, Kashin, A L, Khachatryan, H G, Sargsyan, S, Yegorian, G, Ingrosso, G, Jetzer, Ph, Vetrugno, D, and University of Zurich

Subjects
1912 Space and Planetary Science, 530 Physics, 3103 Astronomy and Astrophysics, 10192 Physics Institute
Published
2016

3. A Strategy to Characterize the LISA-Pathfinder Cold Gas Thruster System

Author

Armano, M., Audley, H., Auger, G., Baird, J., Binetruy, P., Born, M., Bortoluzzi, D., Brandt, N., Bursi, A., Caleno, M., Cavalleri, A., Cesarini, A., Cruise, M., Cutler, C., Danzmann, K., Diepholz, I., Dolesi, R., Dunbar, N., Ferraioli, L., Ferroni, V., Fitzsimons, E., Freschi, M., Gallegos, J., Marirrodriga, C., Gerndt, R., Gesa, L., Gibert, F., Giardini, D., Giusteri, R., Grimani, C., Harrison, I., Heinzel, G., Hewitson, M., Hollington, D., Hueller, M., Huesler, J., Inchauspe, H., Jennrich, O., Jetzer, P., Johlander, B., Karnesis, N., Kaune, B., Korsakova, N., Killow, C., Lloro, I., Maarschalkerweerd, R., Madden, S., Maghami, P., Mance, D., Martin, V., Martin-Porqueras, F., Mateos, I., McNamara, P., Mendes, J., Mendes, L., Moroni, A., Nofrarias, M., Paczkowski, S., Perreur-Lloyd, M., Petiteau, A., Pivato, P., Plagnol, E., Prat, P., Ragnit, U., Ramos-Castro, J., Reiche, J., Perez, J., Robertson, D., Rozemeijer, H., Russano, G., Sarra, P., Schleicher, A., Slutsky, J., Sopuerta, C., Sumner, T., Texier, D., Thorpe, J., Trenkel, C., Tu, H., Vetrugno, D., Vitale, S., Wanner, G., Ward, H., Waschke, S., Wass, P., Wealthy, D., Wen, S., Weber, W., Wittchen, A., Zanoni, C., Ziegler, T., and Zweifel, P.

Subjects
Physics, History, business.industry, Astrophysics::Instrumentation and Methods for Astrophysics, Astrophysics, Cold gas thruster, Computer Science Applications, Education, Pathfinder, Amplitude, Component (UML), Physics::Space Physics, Aerospace engineering, business
Abstract

The LISA Pathfinder mission will demonstrate the technology of drag-free test masses for use as inertial references in future space-based gravitational wave detectors. To accomplish this, the Pathfinder spacecraft will perform drag-free flight about a test mass while measuring the acceleration of this primary test mass relative to a second reference test mass. Because the reference test mass is contained within the same spacecraft, it is necessary to apply forces on it to maintain its position and attitude relative to the spacecraft. These forces are a potential source of acceleration noise in the LISA Pathfinder system that are not present in the full LISA configuration. While LISA Pathfinder has been designed to meet it's primary mission requirements in the presence of this noise, recent estimates suggest that the on-orbit performance may be limited by this `suspension noise'. The drift-mode or free-flight experiments provide an opportunity to mitigate this noise source and further characterize the underlying disturbances that are of interest to the designers of LISA-like instruments. This article provides a high-level overview of these experiments and the methods under development to analyze the resulting data.

Published
2015

4. LISA PATHFINDER FIRST STEP TOWARD A GRAVITATIONAL WAVE SPACE OBSERVATORY

Author

Bassan, M., Armano, M., Audley, H., Auger, G., Baird, J. T., Binetruy, P., Born, M., Bortoluzzi, D., Brandt, N., Caleno, M., Carbone, L., Cavalleri, A., Cesarini, A., Ciani, G., Congedo, G., Cruise, A. M., Danzmann, K., Deus Silva, M., Rosario De Rosa, Di Fiore, L., Diaz-Aguiló, M., Diepholz, I., Dixon, G., Dolesi, R., Dunbar, N., Ferraioli, L., Ferroni, V., Fitzsimons, E. D., Flatscher, R., Freschi, M., Garcia Marín, A., García Marrirodriga, C., Gerndt, R., Gesa, L., Gibert, F., Giardini, D., Giusteri, R., Grado, A., Grimani, C., Grynagier, A., Grzymisch, J., Guzman, F., Harrison, I., Heinzel, G., Hewitson, M., Hollington, D., Hoyland, D., Hueller, M., Inchauspé, H., Jennrich, O., Jetzer, P., Johlander, B., Karnesis, N., Kaune, B., Korsakova, N., Killow, C. J., Lobo, J. A., Lloro, I., Liu, L., López-Zaragoza, J. P., Maarschalkerweerd, R., Mance, D., Martín, V., Martin-Polo, L., Martino, J., Martin-Porqueras, F., Madden, S., Mateos, I., Mcnamara, P. W., Mendes, J., Mendes, L., Monsky, A., Nicolodi, D., Nofrarias, M., Paczkowski, S., Perreur-Lloyd, M., Petiteau, A., Pivato, P., Plagnol, E., Prat, P., Ragnit, U., Raïs, B., Ramos-Castro, J., Reiche, J., Robertson, D. I., Rozemeijer, H., Rivas, F., Russano, G., Sanjuan, J., Sarra, P., Schleicher, A., Shaul, D., Slutsky, J., Sopuerta, C. F., Stanga, R., Steier, F., Sumner, T., Texier, D., Thorpe, J. I., Trenkel, C., Tröbs, M., Tu, H. B., Vetrugno, D., Vitale, S., Wand, V., Wanner, G., Ward, H., Wass, P. J., Wealthy, D., Weber, W. J., Wissel, L., Wittchen, A., Zambotti, A., Zanoni, C., Ziegler, T., and Zweifel, P.

5. The Gravitational Universe

Author

Consortium, The Elisa, Seoane, P. Amaro, Aoudia, S., Audley, H., Auger, G., Babak, S., Baker, J., Barausse, E., Barke, S., Bassan, M., Beckmann, V., Benacquista, M., Bender, P. L., Berti, E., Binétruy, P., Bogenstahl, J., Bonvin, C., Bortoluzzi, D., Brause, N. C., Brossard, J., Buchman, S., Bykov, I., Camp, J., Caprini, C., Cavalleri, A., Cerdonio, M., Ciani, G., Colpi, M., Congedo, G., Conklin, J., Cornish, N., Danzmann, K., Vine, G., Debra, D., Dewi Freitag, M., Di Fiore, L., Diaz Aguilo, M., Diepholz, I., Dolesi, R., Dotti, M., Fernández Barranco, G., Ferraioli, L., Ferroni, V., Finetti, N., Fitzsimons, E., Gair, J., Galeazzi, F., Garcia, A., Gerberding, O., Gesa, L., Giardini, D., Gibert, F., Grimani, C., Paul Groot, Guzman Cervantes, F., Haiman, Z., Halloin, H., Heinzel, G., Hewitson, M., Hogan, C., Holz, D., Hornstrup, A., Hoyland, D., Hoyle, C. D., Hueller, M., Hughes, S., Jetzer, P., Kalogera, V., Karnesis, N., Kilic, M., Killow, C., Klipstein, W., Kochkina, E., Korsakova, N., Krolak, A., Larson, S., Lieser, M., Littenberg, T., Livas, J., Lloro, I., Mance, D., Madau, P., Maghami, P., Mahrdt, C., Marsh, T., Mateos, I., Mayer, L., Mcclelland, D., Mckenzie, K., Mcwilliams, S., Merkowitz, S., Miller, C., Mitryk, S., Moerschell, J., Mohanty, S., Monsky, A., Mueller, G., Müller, V., Nelemans, G., Nicolodi, D., Nissanke, S., Nofrarias, M., Numata, K., Ohme, F., Otto, M., Perreur-Lloyd, M., Petiteau, A., Phinney, E. S., Plagnol, E., Pollack, S., Porter, E., Prat, P., Preston, A., Prince, T., Reiche, J., Richstone, D., Robertson, D., Rossi, E. M., Rosswog, S., Rubbo, L., Ruiter, A., Sanjuan, J., Sathyaprakash, B. S., Schlamminger, S., Schutz, B., Schütze, D., Sesana, A., Shaddock, D., Shah, S., Sheard, B., Sopuerta, C. F., Spector, A., Spero, R., Stanga, R., Stebbins, R., Stede, G., Steier, F., Sumner, T., Sun, K. -X, Sutton, A., Tanaka, T., Tanner, D., Thorpe, I., Tröbs, M., Tinto, M., Tu, H. -B, Vallisneri, M., Vetrugno, D., Vitale, S., Volonteri, M., Wand, V., Wang, Y., Wanner, G., Ward, H., Ware, B., Wass, P., Weber, W. J., Yu, Y., Yunes, N., and Zweifel, P.

Subjects
General Relativity and Quantum Cosmology, Cosmology and Nongalactic Astrophysics (astro-ph.CO), FOS: Physical sciences, Astrophysics::Cosmology and Extragalactic Astrophysics, General Relativity and Quantum Cosmology (gr-qc), Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

The last century has seen enormous progress in our understanding of the Universe. We know the life cycles of stars, the structure of galaxies, the remnants of the big bang, and have a general understanding of how the Universe evolved. We have come remarkably far using electromagnetic radiation as our tool for observing the Universe. However, gravity is the engine behind many of the processes in the Universe, and much of its action is dark. Opening a gravitational window on the Universe will let us go further than any alternative. Gravity has its own messenger: Gravitational waves, ripples in the fabric of spacetime. They travel essentially undisturbed and let us peer deep into the formation of the first seed black holes, exploring redshifts as large as z ~ 20, prior to the epoch of cosmic re-ionisation. Exquisite and unprecedented measurements of black hole masses and spins will make it possible to trace the history of black holes across all stages of galaxy evolution, and at the same time constrain any deviation from the Kerr metric of General Relativity. eLISA will be the first ever mission to study the entire Universe with gravitational waves. eLISA is an all-sky monitor and will offer a wide view of a dynamic cosmos using gravitational waves as new and unique messengers to unveil The Gravitational Universe. It provides the closest ever view of the early processes at TeV energies, has guaranteed sources in the form of verification binaries in the Milky Way, and can probe the entire Universe, from its smallest scales around singularities and black holes, all the way to cosmological dimensions., Comment: 20 pages; submitted to the European Space Agency on May 24th, 2013 for the L2/L3 selection of ESA's Cosmic Vision program

6. A two-stage torsion pendulum for ground testing free fall conditions on two degrees of freedom

Author

Daniele Vetrugno, F. Garufi, Rosario De Rosa, Fabrizio De Marchi, Rita Dolesi, Massimo Bassan, Massimo Visco, Leopoldo Milano, Giuseppe Pucacco, W. J. Weber, Luciano Di Fiore, N. Finetti, Aniello Grado, Martina De Laurentis, Stefano Vitale, Antonella Cavalleri, Mauro Hueller, Ruggero Stanga, Bassan, M., Cavalleri, A., De Laurentis, M., De Marchi, F., De Rosa, R., Di Fiore, L., Dolesi, R., Finetti, N., Garufi, F., Grado, A., Hueller, M., Milano, L., Pucacco, G., Stanga, R., Vetrugno, D., Visco, M., Vitale, S., Weber, W. J., Bassan, M, Cavalleri, A, DE LAURENTIS, Martina, De Marchi, F, DE ROSA, Rosario, Di Fiore, L, Dolesi, R, Finetti, N, Garufi, Fabio, Grado, A, Hueller, M, Milano, Leopoldo, Pucacco, G, Stanga, R, Vetrugno, D, Visco, M, Vitale, S, and Weber, Jw

Subjects
Ground testing, Nuclear and High Energy Physics, History, inertial sensor, free-fall, Torsion pendulum, 01 natural sciences, Education, Gravitation, Control theory, 0103 physical sciences, Torque, 010306 general physics, Physics, 010308 nuclear & particles physics, Gravitational wave, Settore FIS/01 - Fisica Sperimentale, Astrophysics::Instrumentation and Methods for Astrophysics, space gravitational-wave detectors, Torsion (mechanics), Computer Science Applications, Two degrees of freedom, Classical mechanics, Torsion pendulum clock, Reference sensor, Stage (hydrology), space gravitational-wave detector
Abstract

A torsion pendulum with 2 soft degrees of freedom (DOF), realized by off-axis cascading two torsion fibers, has been built and operated. This instrument allows simultaneous measurement of force and torque acting on the suspended test mass, approaching free-fall condition down to a few mHz. It was developed for ground testing on two DOFs, before the launch, of the Gravitational Reference Sensor of the LISA-Pathfinder mission. We will report on the results of some measurement campaigns devoted in particular to the characterization of force to torque and torque to force actuation cross-talks. We will also indicate further possible upgrades of the facility for application for ground testing of future space gravitational wave antennas or other space experiments requiring drag-free control.

Published
2017

7. Actuation crosstalk in free-falling systems: Torsion pendulum results for the engineering model of the LISA pathfinder gravitational reference sensor

Author

Antonella Cavalleri, Aniello Grado, N. Finetti, Mauro Hueller, Massimo Bassan, L. Di Fiore, F. Garufi, Massimo Visco, Leopoldo Milano, R. De Rosa, Y. Minenkov, Ruggero Stanga, W. J. Weber, F. De Marchi, Rita Dolesi, M. De Laurentis, L. Marconi, Daniele Vetrugno, Giuseppe Pucacco, S. Vitale, Bassan, M., Cavalleri, A., De Laurentis, M., De Marchi, F., De Rosa, Rosario., Di Fiore, L., Dolesi, R., Finetti, N., Garufi, F., Grado, A., Hueller, M., Marconi, L., Milano, L., Minenkov, Y., Pucacco, G., Stanga, R., Vetrugno, D., Visco, M., Vitale, S., and Weber, W. J.

Subjects
Physics, LISA, 010308 nuclear & particles physics, Acoustics, Settore FIS/01 - Fisica Sperimentale, Actuation, Astrophysics::Instrumentation and Methods for Astrophysics, Torsion pendulum, Astronomy and Astrophysics, Control force, 01 natural sciences, Gravitation, Crosstalk, Free falling, Pathfinder, Classical mechanics, Torsion pendulum clock, 0103 physical sciences, Inertial motion, Reference sensor, Torque, 010306 general physics, Inertial motion, Crosstalk, Torsion pendulum, LISA, Actuation
Abstract

In this paper we report on measurements on actuation crosstalk, relevant to the gravitational reference sensors for LISA Pathfinder and LISA. In these sensors, a Test Mass (TM) falls freely within a system of electrodes used for readout and control. These measurements were carried out on ground with a double torsion pendulum that allowed us to estimate both the torque injected into the sensor when a control force is applied and, conversely, the force leaking into the translational degree of freedom due to the applied torque.The values measured on our apparatus (the engineering model of the LISA Pathfinder sensor) agree to within 0.2% (over a maximum measured crosstalk of 1%) with predictions of a mathematical model when measuring force to torque crosstalk, while it is somewhat larger than expected (up to 3.5%) when measuring torque to force crosstalk. However, the values in the relevant range, i.e. when the TM is well centered ( ± 10 µm) in the sensor, remain smaller than 0.2%, satisfying the LISA Pathfinder requirements.

Published
2018

8. Gravitational wave scintillation by a stellar cluster

Author

G. CONGEDO, F. DE PAOLIS, P. LONGO, A. A. NUCITA, D. VETRUGNO, ASGHAR QADIR, Congedo, G, DE PAOLIS, Francesco, Longo, P, Nucita, Achille, Vetrugno, D, and Qadir, A.

Subjects
Diffraction, Physics, Scintillation, Gravitational wave, Astrophysics (astro-ph), Physics::Optics, FOS: Physical sciences, Astronomy and Astrophysics, Astrophysics, Observer (physics), Intensity (physics), General Relativity and Quantum Cosmology, gravitational waves, Space and Planetary Science, Cluster (physics), Mathematical Physics, Fresnel diffraction
Abstract

The diffraction effects on gravitational waves propagating through a stellar cluster are analyzed in the relevant approximation of Fresnel diffraction limit. We find that a gravitational wave scintillation effect - similar to the radio source scintillation effect - comes out naturally, implying that the gravitational wave intensity changes in a characteristic way as the observer moves., Comment: 9 pages, in press in IJMP D

Published
2006
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9. PETER: A torsion pendulum facility to study small forces/torques on free falling instrumented masses

Author

Rita Dolesi, Martina De Laurentis, Daniele Vetrugno, Antonella Cavalleri, Fabrizio De Marchi, Giuseppe Pucacco, L. Marconi, Luciano Di Fiore, Stefano Vitale, F. Garufi, N. Finetti, Massimo Visco, Massimo Bassan, Mauro Hueller, Leopoldo Milano, Ruggero Stanga, WilliamJ. Weber, Yuri Minenkov, A. Grado, Rosario De Rosa, Bassan, M., Cavalleri, A., de Laurentis, M., de Marchi, F., de Rosa, R., Di Fiore, L., Dolesi, R., Finetti, N., Garufi, F., Grado, A., Hueller, M., Marconi, L., Milano, L., Minenkov, Y., Pucacco, G., Stanga, R., Vetrugno, D., Visco, M., Vitale, S., and Weber, W. J.

Subjects
Gravitation, Free falling, Physics, Ground testing, business.industry, Torsion pendulum clock, Reference sensor, Torque, Torsion (mechanics), Aerospace engineering, business, Space exploration
Abstract

We describe here the realization and tests of a two stage torsion pendulum facility (nicknamed PETER, from Italian PEndolo Traslazionale E Rotazionale, namely translational and Rotational Pendulum) for the measurement of the Gravitational Reference Sensor (GRS) actuation Cross Talks (CT) for LISA-Pathfinder and its possible evolution. This project started within the ground testing activities for the characterization, before flight, of the GRS of LISA-Pathfinder, where it showed results consistent with what observed on flight. The apparatus could easily evolve to a facility to test small forces/torques on free falling instrumented masses, for future next generation space missions. Here, we will discuss the principle of operation of the double torsion pendulum and the initial goal of the activity, the description of the PETER apparatus, cross -talk measurement technique and results and possible extension to more than 2 DoF

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