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343 results on '"Stanga, R."'

1. NanoNewton electrostatic force actuators for femtoNewton-sensitive measurements: system performance test in the LISA Pathfinder mission

Author

Armano, M, Audley, H, Baird, J, Bassan, M, Binetruy, P, Born, M, Bortoluzzi, D, Castelli, E, Cavalleri, A, Cesarini, A, Chiavegato, V, Cruise, A M, Bosco, D Dal, Danzmann, K, Silva, M De Deus, De Rosa, R, Di Fiore, L, Diepholz, I, Dixon, G, Dolesi, R, Ferroni, L Ferraioli V, Fitzsimons, E D, Freschi, M, Gesa, L, Giardini, D, Gibert, F, Giusteri, R, Grado, A, Grimani, C, Grzymisch, J, Harrison, I, Hartig, M S, 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, Liu, L, Lobo, J A, López-Zaragoza, J P, Maarschalkerweerd, R, Mance, D, Martín, V, Martin-Polo, L, Martin-Porqueras, F, Martino, J, McNamara, P W, Mendes, J, Mendes, L, Meshksar, N, Moerschell, J, Nofrarias, M, Paczkowski, S, Perreur-Lloyd, M, Petiteau, A, Plagnol, E, Praplan, C, Ramos-Castro, J, Reiche, J, Rivas, F, Robertson, D I, Russano, G, Sala, L, Sarra, P, Schule-Walewski, S L, Slutsky, J, Sopuerta, C F, Stanga, R, Sumner, T, Pierick, J ten, Texier, D, Thorpe, J I, Vetrugno, D, Vitale, S, Wanner, G, Ward, H, Wass, P, Weber, W J, Wissel, L, Wittchen, A, Zanoni, C, and Zweifel, P

Subjects
Astrophysics - Instrumentation and Methods for Astrophysics, General Relativity and Quantum Cosmology
Abstract

Electrostatic force actuation is a key component of the system of geodesic reference test masses (TM) for the LISA orbiting gravitational wave observatory and in particular for performance at low frequencies, below 1 mHz, where the observatory sensitivity is limited by stray force noise. The system needs to apply forces of order 10$^{-9}$ N while limiting fluctuations in the measurement band to levels approaching 10$^{-15}$ N/Hz$^{1/2}$. We present here the LISA actuation system design, based on audio-frequency voltage carrier signals, and results of its in-flight performance test with the LISA Pathfinder test mission. In LISA, TM force actuation is used to align the otherwise free-falling TM to the spacecraft-mounted optical metrology system, without any forcing along the critical gravitational wave-sensitive interferometry axes. In LISA Pathfinder, on the other hand, the actuation was used also to stabilize the TM along the critical $x$ axis joining the two TM, with the commanded actuation force entering directly into the mission's main differential acceleration science observable. The mission allowed demonstration of the full compatibility of the electrostatic actuation system with the LISA observatory requirements, including dedicated measurement campaigns to amplify, isolate, and quantify the two main force noise contributions from the actuation system, from actuator gain noise and from low frequency ``in band'' voltage fluctuations. These campaigns have shown actuation force noise to be a relevant, but not dominant, noise source in LISA Pathfinder and have allowed performance projections for the conditions expected in the LISA mission.

Published
2023

2. Micrometeoroid Events in LISA Pathfinder

Author

Thorpe, James Ira, Slutsky, Jacob, Baker, John, Littenberg, Tyson, Hourihane, Sophie, Pagane, Nicole, Pokorny, Petr, Janches, Diego, Armano, Michele, Audley, Heather, Auger, G., Baird, Jonathan, Bassan, Massimo, Binetruy, Pierre, Born, Michael, Bortoluzzi, D., Brandt, N., Caleno, M., Cavalleri, A, Cesarini, A, Cruise, A. M., Danzmann, K., Silva, M. de Deus, De Rosa, R., Di Fiore, L., Diepholz, I., Dixon, G., Dolesi, R., Dunbar, N., Ferraioli, L., Ferroni, V., Fitzsimons, E., Flatscher, R., Freschi, M., Marirrodriga, C. Garcia, Gerndt, R., Gesa, L., Gibert, F., Giardini, D., Giusteri, R., Grado, A., Grimani, C., Gryzmisch, J., Harrison, I., Heinzel, G., Hewitson, M., Hollington, D., Hoyland, D., Hueller, M., Inchauspe, H., Jennrich, O., Jetzer, P., Johlander, B., Karnesis, N., Kaune, B., Korsakova, N., Killow, C., Lobo, J. A., Lloro, I., Liu, L., Lopez-Zaragoza, J. P., Maarschalkerweerd, R., Mance, D., Martin, V., Martin-Polo, L., Martino, J., Martin-Porqueras, F., Madden, S., Mateos, I., McNamara, P. W., Mendes, J., Mendes, L., Nofarias, M., Paczkowski, S., Perreur-Lloyd, M., Petiteau, A., Pivato, P., Plagnol, E., Prat, P., Ragnit, U., Ramos-Castro, J., Reiche, J., Robertson, D., Rozemeijer, H., Rivas, F., Russano, G., Sarra, P., Schleicher, A., Shaul, D., Soperta, C., Stanga, R., Sumner, T., Texier, D., Trobs, M., Vetrungno, D., Vitale, S., Wanner, G., Ward, H., Wass, P., Wealthy, D., Weber, W. J., Wissel, L., Wittchen, A., Zambotti, A., Zanoni, C., Ziegler, T., and Zweifel, P.

Subjects
Astrophysics - Earth and Planetary Astrophysics
Abstract

The zodiacal dust complex, a population of dust and small particles that pervades the Solar System, provides important insight into the formation and dynamics of planets, comets, asteroids, and other bodies. Here we present a new set of data obtained using a novel technique: direct measurements of momentum transfer to a spacecraft from individual particle impacts. This technique is made possible by the extreme precision of the instruments flown on the LISA Pathfinder spacecraft, a technology demonstrator for a future space-based gravitational wave observatory that operated near the first Sun-Earth Lagrange point from early 2016 through Summer of 2017. Using a simple model of the impacts and knowledge of the control system, we show that it is possible to detect impacts and measure properties such as the transferred momentum (related to the particle's mass and velocity), direction of travel, and location of impact on the spacecraft. In this paper, we present the results of a systematic search for impacts during 4348 hours of Pathfinder data. We report a total of 54 candidates with momenta ranging from 0.2$\,\mu\textrm{Ns}$ to 230$\,\mu\textrm{Ns}$. We furthermore make a comparison of these candidates with models of micrometeoroid populations in the inner solar system including those resulting from Jupiter-family comets, Oort-cloud comets, Hailey-type comets, and Asteroids. We find that our measured population is consistent with a population dominated by Jupiter-family comets with some evidence for a smaller contribution from Hailey-type comets. This is in agreement with consensus models of the zodiacal dust complex in the momentum range sampled by LISA Pathfinder., Comment: 22 pages, 14 figures, accepted in ApJ

Published
2019
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4. 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., de Vine, G., DeBra, D., Freitag, M. Dewi, Di Fiore, L., Aguilo, M. Diaz, Diepholz, I., Dolesi, R., Dotti, M., Barranco, G. Fernández, Ferraioli, L., Ferroni, V., Finetti, N., Fitzsimons, E., Gair, J., Galeazzi, F., Garcia, A., Gerberding, O., Gesa, L., Giardini, D., Gibert, F., Grimani, C., Groot, P., Cervantes, F. Guzman, 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
Astrophysics - Cosmology and Extragalactic Astrophysics, General Relativity and Quantum Cosmology
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

Published
2013

6. Testing the performance of a blind burst statistic

Author

Vicere', A., Calamai, G., Campagna, E., Conforto, G., Cuoco, E., Dominici, P., Fiori, I., Guidi, G. M., Losurdo, G., Martelli, F., Mazzoni, M., Perniola, B., Stanga, R., and Vetrano, F.

Subjects
General Relativity and Quantum Cosmology
Abstract

In this work we estimate the performance of a method for the detection of burst events in the data produced by interferometric gravitational wave detectors. We compute the receiver operating characteristics in the specific case of a simulated noise having the spectral density expected for Virgo, using test signals taken from a library of possible waveforms emitted during the collapse of the core of Type II Supernovae., Comment: 8 pages, 6 figures, Talk given at the GWDAW2002 workshop

Published
2003
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7. Inertial control of the mirror suspensions of the VIRGO interferometer for gravitational wave detection

Author

Losurdo, G., Calamai, G., Cuoco, E., Fabbroni, L., Guidi, G., Mazzoni, M., Stanga, R., Vetrano, F., Holloway, L., Passuello, D., Ballardin, G., Braccini, S., Bradaschia, C., Cavalieri, R., Cecchi, R., Cella, G., Dattilo, V., Di Virgilio, A., Fidecaro, F., Frasconi, F., Gennai, A., Giazotto, A., Ferrante, I., La Penna, P., Lelli, F., Lomtadze, T., Marin, A., Mancini, S., Paoletti, F., Pasqualetti, A., Passaquieti, R., Poggiani, R., Taddei, R., Vicere', A., and Zhang, Z.

Subjects
General Relativity and Quantum Cosmology
Abstract

In order to achieve full detection sensitivity at low frequencies, the mirrors of interferometric gravitational wave detectors must be isolated from seismic noise. The VIRGO vibration isolator, called 'superattenuator', is fully effective at frequencies above 4 Hz. Nevertheless, the residual motion of the mirror at the mechanical resonant frequencies of the system are too large for the interferometer locking system and must be damped. A multidimensional feedback system, using inertial sensors and digital processing, has been designed for this purpose. An experimental procedure for determining the feedback control of the system has been defined. In this paper a full description of the system is given and experimental results are presented., Comment: 17 pages, 11 figures, accepted for publication on Review of Scientific Instruments

Published
2001
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8. On line power spectra identification and whitening for the noise in interferometric gravitational wave detectors

Author

Cuoco, E., Calamai, G., Fabbroni, L., Losurdo, G., Mazzoni, M., Stanga, R., and Vetrano, F.

Subjects
General Relativity and Quantum Cosmology
Abstract

In this paper we address both to the problem of identifying the noise Power Spectral Density of interferometric detectors by parametric techniques and to the problem of the whitening procedure of the sequence of data. We will concentrate the study on a Power Spectral Density like the one of the Italian-French detector VIRGO and we show that with a reasonable finite number of parameters we succeed in modeling a spectrum like the theoretical one of VIRGO, reproducing all its features. We propose also the use of adaptive techniques to identify and to whiten on line the data of interferometric detectors. We analyze the behavior of the adaptive techniques in the field of stochastic gradient and in the Least Squares ones., Comment: 28 pages, 21 figures, uses iopart.cls accepted for pubblication on Classical and Quantum Gravity

Published
2000
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9. Morphology of the 12-micron Seyfert Galaxies: II. Optical and Near-Infrared Image Atlas

Author

Hunt, L. K., Malkan, M. A., Rush, B., Bicay, M. D., Nelson, B. O., Stanga, R. M., and Webb, W.

Subjects
Astrophysics
Abstract

We present 263 optical and near-infrared (NIR) images for 42 Seyfert 1s and 48 Seyfert 2s, selected from the Extended 12-micron Galaxy Sample. Elliptically-averaged profiles are derived from the images, and isophotal radii and magnitudes are calculated from these. We also report virtual aperture photometry, that judging from comparison with previous work, is accurate to roughly 0.05mag in the optical, and 0.07mag in the NIR. Our B-band isophotal magnitude and radii, obtained from ellipse fitting, are in good agreement with those of RC3. When compared with the B band, V, I, J, and K isophotal diameters show that the colors in the outer regions of Seyferts are consistent with the colors of normal spirals. Differences in the integrated isophotal colors and comparison with a simple model show that the active nucleus+bulge is stronger and redder in the NIR than in the optical. Finally, roughly estimated Seyfert disk surface brightnesses are significantly brighter in B and K than those in normal spirals of similar morphological type., Comment: 17 pgs including figures; Table 2 is a separate file. Complete Figure 1 is available by contacting the authors. Accepted for publication in ApJS

Published
1999
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10. Northern JHK Standard Stars for Array Detectors

Author

Hunt, L. K., Mannucci, F., Testi, L., Migliorini, S., Stanga, R. M., Baffa, C., Lisi, F., and Vanzi, L.

Subjects
Astrophysics
Abstract

We report J, H and K photometry of 86 stars in 40 fields in the northern hemisphere. The fields are smaller than or comparable to a 4x4 arcmin field-of-view, and are roughly uniformly distributed over the sky, making them suitable for a homogeneous broadband calibration network for near-infrared panoramic detectors. K magnitudes range from 8.5 to 14, and J-K colors from -0.1 to 1.2. The photometry is derived from a total of 3899 reduced images; each star has been measured, on average, 26.0 times per filter on 5.5 nights. Typical errors on the photometry are about 0.012., Comment: 10 pages including 3 figures, one separate figure on four pages. The finding chart of the AS-30 field and a few coordinates have been corrected. GIF finding charts can also be found at http://www.arcetri.astro.it/~hunt/std.html

Published
1998
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11. Dust as the cause of spots on Jupiter

Author

Tozzi, G. B. Field G. P. and Stanga, R. M.

Subjects
Astrophysics
Abstract

The long-lived spots caused by the impact of fragments of Comet S-L 9 on Jupiter can be understood if clouds of dust are produced by the impact. These clouds reside in the stratosphere, where they absorb visible light that would ordinarily reflect from the cloud deck below, and reflect radiation at infrared wavelengths that would ordinarily be absorbed by atmospheric methane. Here we show that, provided that the nucleus of a fragment is composed substantially of silicates and has a diameter greater than about 0.4 km, dust in the required amounts will condense from the hot gas composed of cometary and Jovian material ejected from the site where the fragment entered, and the dust will be suspended in the stratosphere for long periods. Particles about 1$\;\mu$m in radius can explain both the optical properties and longevities of the spots. According to our model, a silicate band should be present in the $10 - \mu$m spectra of the spots., Comment: 3 pages, postscript, compressed with gzip (use gunzip), uuencoded. Accepted for publication on Astronomy and Astrophysics letters.

Published
1995

12. FRIPON: a worldwide network to track incoming meteoroids

Author

Marsset, Michaël, Brož, Miroslav, Castillo-Rogez, Julie, Hanuš, Josef, Viikinkoski, Matti, Ševeček, Pavel, Marchis, Franck, Podlewska-Gaca, Edyta, Asphaug, Erik, Bartczak, Przemyslaw, Berthier, Jérôme, Cipriani, Fabrice, Dudziński, Grzegorz, Dumas, Christophe, Ďurech, Josef, Ferrais, Marin, Fétick, Romain, Fusco, Thierry, Kaasalainen, Mikko, Kryszczynska, Agnieszka, Lamy, Philippe, Le Coroller, Hervé, Marciniak, Anna, Michalowski, Tadeusz, Michel, Patrick, Richardson, Derek, Santana-Ros, Toni, Vachier, Frédéric, Vigan, Arthur, Witasse, Olivier, Yang, Bin, Colas, François, Zanda, B., Bouley, S., Jeanne, S., Malgoyre, A., Birlan, Mirel, Blanpain, C., Gattacceca, J., Jorda, Laurent, Lecubin, J., Marmo, C., Rault, J., Vaubaillon, J., Vernazza, Pierre, Yohia, C., Gardiol, D., Nedelcu, A., Poppe, B., Rowe, J., Forcier, M., Trigo-Rodriguez, J., Lamy, H., Behrend, R., Ferrière, L., Barghini, D., Buzzoni, A., Carbognani, A., Di Carlo, M., Di Martino, M., Knapic, C., Londero, E., Pratesi, G., Rasetti, S., Riva, W., Stirpe, G., Valsecchi, G., Volpicelli, C., Zorba, S., Coward, D., Drolshagen, E., Drolshagen, G., Hernandez, O., Jehin, Emmanuel, Jobin, M., King, A., Nitschelm, C., Ott, T., Sanchez-Lavega, A., Toni, A., Abraham, P., Affaticati, F., Albani, M., Andreis, A., Andrieu, T., Anghel, S., Antaluca, E., Antier, K., Appéré, T., Armand, A., Ascione, G., Audureau, Y., Auxepaules, G., Avoscan, T., Baba Aissa, D., Bacci, P., Bǎdescu, O., Baldini, R., Baldo, R., Balestrero, A., Baratoux, D., Barbotin, E., Bardy, M., Basso, S., Bautista, O., Bayle, L., Beck, P., Bellitto, R., Belluso, R., Benna, C., Benammi, M., Beneteau, E., Benkhaldoun, Z., Bergamini, P., Bernardi, F., Bertaina, M., Bessin, P., Betti, L., Bettonvil, F., Bihel, D., Birnbaum, C., Blagoi, O., Blouri, E., Boacă, I., Boatǎ, R., Bobiet, B., Bonino, R., Boros, K., Bouchet, E., Borgeot, V., Bouchez, E., Boust, D., Boudon, V., Bouman, T., Bourget, P., Brandenburg, S., Bramond, Ph., Braun, E., Bussi, A., Cacault, P., Caillier, B., Calegaro, A., Camargo, J., Caminade, S., Campana, A., Campbell-Burns, P., Canal-Domingo, R., Carell, O., Carreau, S., Cascone, E., Cattaneo, C., Cauhape, P., Cavier, P., Celestin, S., Cellino, A., Champenois, M., Chennaoui Aoudjehane, H., Chevrier, S., Cholvy, P., Chomier, L., Christou, A., Cricchio, D., Coadou, P., Cocaign, J., Cochard, F., Cointin, S., Colombi, E., Colque Saavedra, J., Corp, L., Costa, M., Costard, F., COTTIER, M., Cournoyer, P., Coustal, E., Cremonese, G., Cristea, O., Cuzon, J., D’Agostino, G., Daiffallah, K., Dǎnescu, C., Dardon, A., Dasse, T., Davadan, C., Debs, V., Defaix, J., Deleflie, F., D’Elia, M., De Luca, P., De Maria, P., Deverchère, P., Devillepoix, H., Dias, A., Di Dato, A., Di Luca, R., Dominici, F., Drouard, Alexis, Dumont, J., Dupouy, P., Duvignac, L., Egal, A., Erasmus, N., Esseiva, N., Ebel, A., Eisengarten, B., Federici, F., Feral, S., Ferrant, G., Ferreol, E., Finitzer, P., Foucault, A., Francois, P., Frîncu, M., Froger, J., Gaborit, F., Gagliarducci, V., Galard, J., Gardavot, A., Garmier, M., Garnung, M., Gautier, B., Gendre, B., Gerard, D., Gerardi, A., Godet, J., Grandchamps, A., Grouiez, B., Groult, S., Guidetti, D., Giuli, G., Hello, Y., Henry, X., Herbreteau, G., Herpin, M., Hewins, P., Hillairet, J., Horak, J., Hueso, R., Huet, E., Huet, S., Hyaumé, F., Interrante, G., Isselin, Y., Jeangeorges, Y., Janeux, P., Jeanneret, P., Jobse, K., Jouin, S., Jouvard, J., Joy, K., Julien, J., Kacerek, R., Kaire, M., Kempf, M., Koschny, D., Krier, C., Kwon, M., Lacassagne, L., Lachat, D., Lagain, A., Laisné, E., Lanchares, V., Laskar, J., Lazzarin, M., Leblanc, M., Lebreton, J., Lecomte, J., Le Dû, P., LELONG, F., Lera, S., Leoni, J., Le-Pichon, A., Le-Poupon, P., Leroy, A., Leto, G., Levansuu, A., Lewin, E., Lienard, A., Licchelli, D., LOCATELLI, H., Loehle, S., Loizeau, D., Luciani, L., Maignan, M., Manca, F., Mancuso, S., Mandon, E., Mangold, N., Mannucci, F., Maquet, L., Marant, D., Marchal, Y., Marin, J., Martin-Brisset, J., Martin, D., Mathieu, D., Maury, A., Mespoulet, N., Meyer, F., Meyer, J., Meza, E., Moggi Cecchi, V., Moiroud, J., Millan, M., Montesarchio, M., Misiano, A., Molinari, E., Molau, S., Monari, J., Monflier, B., Monkos, A., Montemaggi, M., Monti, G., Moreau, R., Morin, J., Mourgues, R., Mousis, O., Nablanc, C., Nastasi, A., Niacşu, L., Notez, P., Ory, M., Pace, E., Paganelli, M., Pagola, A., Pajuelo, M., Palacián, J., Pallier, G., Paraschiv, P., Pardini, R., Pavone, M., Pavy, G., Payen, G., Pegoraro, A., Peña-Asensio, E., Perez, L., Pérez-Hoyos, S., Perlerin, V., Peyrot, A., Peth, F., Pic, V., Pietronave, S., Pilger, C., Piquel, M., Pisanu, T., Poppe, M., Portois, L., Prezeau, J., Pugno, N., Quantin, C., Quitté, G., Rambaux, Nicolas, Ravier, E., Repetti, U., Ribas, S., Richard, C., Richard, D., RIGONI, M., Rivet, J., Rizzi, N., Rochain, S., Rojas, J.F., Romeo, M., Rotaru, M., Rotger, M., Rougier, P., Rousselot, P., Rousset, J., Rousseu, D., Rubiera, O., Rudawska, R., Rudelle, J., Ruguet, J.P., Russo, P., Sales, S., Sauzereau, O., Salvati, F., Schieffer, M., Schreiner, D., Scribano, Y., Selvestrel, D., Serra, R., Shengold, L., Shuttleworth, A., Smareglia, R., Sohy, S., Soldi, M., Stanga, R., Steinhausser, A., Strafella, F., Sylla Mbaye, S., Smedley, A., Tagger, M., Tanga, Paolo, Taricco, C., Teng, J., Tercu, J., Thizy, O., Thomas, J., Tombelli, M., Trangosi, R., Tregon, B., Trivero, P., Tukkers, A., Turcu, V., Umbriaco, G., Unda-Sanzana, E., Vairetti, R., Valenzuela, M., Valente, G., Varennes, G., Vauclair, S., Vergne, J., Verlinden, M., Vidal-Alaiz, M., Vieira-Martins, R., Viel, A., Vîntdevarǎ, D., Vinogradoff, V., Volpini, P., Wendling, M., Wilhelm, P., Wohlgemuth, K., Yanguas, P., Zagarella, R., Zollo, A., l'Observatoire de Paris, Muséum national d'Histoire naturelle (France), Université Paris-Saclay, OSU Institut Pythéas, Istituto Nazionale di Astrofisica, Fondazione Cassa di Risparmio di Torino, Fondazione De Mari Savona, Diputación Foral de Bizkaia, Ministry of Research and Innovation (Romania), Museu de Astronomia e Ciências Afins (Brazil), Labex ESEP, Sorbonne Université, Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa. InaMat - Institute for Advanced Materials, Universidad Pública de Navarra. Departamento de Estadística, Informática y Matemáticas, Nafarroako Unibertsitate Publikoa. Estatistika, Informatika eta Matematika Saila, Institut de Mécanique Céleste et de Calcul des Ephémérides (IMCCE), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Lille-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Institut Pythéas (OSU PYTHEAS), Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Centre européen de recherche et d'enseignement des géosciences de l'environnement (CEREGE), Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Collège de France (CdF (institution))-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Laboratoire d'Astrophysique de Marseille (LAM), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Aix Marseille Université (AMU)-Centre National d'Études Spatiales [Toulouse] (CNES), Laboratoire d'Etude du Rayonnement et de la Matière en Astrophysique (LERMA (UMR_8112)), Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-CY Cergy Paris Université (CY), Unité Scientifique de la Station de Nançay (USN), Centre National de la Recherche Scientifique (CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire des Sciences de l'Univers en région Centre (OSUC), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Université d'Orléans (UO), Laboratoire de paléontologie, évolution, paléoécosystèmes, paléoprimatologie (PALEVOPRIM ), Université de Poitiers-Centre National de la Recherche Scientifique (CNRS), Université Paris sciences et lettres (PSL), Diagnostic des Plasmas Hors Equilibres (DPHE), Institut national universitaire Champollion [Albi] (INUC), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées, Laboratoire de Physique et Chimie de l'Environnement et de l'Espace (LPC2E), Observatoire des Sciences de l'Univers en région Centre (OSUC), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales [Paris] (CNES), Galaxies, Etoiles, Physique, Instrumentation (GEPI), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Architecture et Logiciels pour Systèmes Embarqués sur Puce (ALSOC), LIP6, Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Aix Marseille Université (AMU)-Collège de France (CdF (institution))-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS), Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Etude du Rayonnement et de la Matière en Astrophysique et Atmosphères = Laboratory for Studies of Radiation and Matter in Astrophysics and Atmospheres (LERMA), École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-CY Cergy Paris Université (CY), Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Planétologie et Géosciences - Le Mans (LPG - Le Mans), Laboratoire de Planétologie et Géosciences [UMR_C 6112] (LPG), Université d'Angers (UA)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Nantes université - UFR des Sciences et des Techniques (Nantes univ - UFR ST), Nantes Université - pôle Sciences et technologie, Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ)-Nantes Université - pôle Sciences et technologie, Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ)-Université d'Angers (UA)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Nantes université - UFR des Sciences et des Techniques (Nantes univ - UFR ST), Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ), Laboratoire Interdisciplinaire Carnot de Bourgogne (ICB), Université de Technologie de Belfort-Montbeliard (UTBM)-Université de Bourgogne (UB)-Université Bourgogne Franche-Comté [COMUE] (UBFC)-Centre National de la Recherche Scientifique (CNRS), Université de Toulouse (UT)-Université de Toulouse (UT), Lumière, nanomatériaux et nanotechnologies (L2n), Institut Charles Delaunay (ICD), Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS)-Université de Technologie de Troyes (UTT)-Centre National de la Recherche Scientifique (CNRS), Univers, Transport, Interfaces, Nanostructures, Atmosphère et environnement, Molécules (UMR 6213) (UTINAM), Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC), Morphodynamique Continentale et Côtière (M2C), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rouen Normandie (UNIROUEN), Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS), Institut de minéralogie, de physique des matériaux et de cosmochimie (IMPMC), Muséum national d'Histoire naturelle (MNHN)-Institut de recherche pour le développement [IRD] : UR206-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Géosciences Paris Saclay (GEOPS), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Colas, F., Zanda, B., Bouley, S., Jeanne, S., Malgoyre, A., Birlan, M., Blanpain, C., Gattacceca, J., Jorda, L., Lecubin, J., Marmo, C., Rault, J. L., Vaubaillon, J., Vernazza, P., Yohia, C., Gardiol, D., Nedelcu, A., Poppe, B., Rowe, J., Forcier, M., Koschny, D., Trigo-Rodriguez, J. M., Lamy, H., Behrend, R., Ferriere, L., Barghini, D., Buzzoni, A., Carbognani, A., Di Carlo, M., Di Martino, M., Knapic, C., Londero, E., Pratesi, G., Rasetti, S., Riva, W., Stirpe, G. M., Valsecchi, G. B., Volpicelli, C. A., Zorba, S., Coward, D., Drolshagen, E., Drolshagen, G., Hernandez, O., Jehin, E., Jobin, M., King, A., Nitschelm, C., Ott, T., Sanchez-Lavega, A., Toni, A., Abraham, P., Affaticati, F., Albani, M., Andreis, A., Andrieu, T., Anghel, S., Antaluca, E., Antier, K., Appere, T., Armand, A., Ascione, G., Audureau, Y., Auxepaules, G., Avoscan, T., Baba Aissa, D., Bacci, P., Badescu, O., Baldini, R., Baldo, R., Balestrero, A., Baratoux, D., Barbotin, E., Bardy, M., Basso, S., Bautista, O., Bayle, L. D., Beck, P., Bellitto, R., Belluso, R., Benna, C., Benammi, M., Beneteau, E., Benkhaldoun, Z., Bergamini, P., Bernardi, F., Bertaina, M. E., Bessin, P., Betti, L., Bettonvil, F., Bihel, D., Birnbaum, C., Blagoi, O., Blouri, E., Boaca, I., Boata, R., Bobiet, B., Bonino, R., Boros, K., Bouchet, E., Borgeot, V., Bouchez, E., Boust, D., Boudon, V., Bouman, T., Bourget, P., Brandenburg, S., Bramond, P., Braun, E., Bussi, A., Cacault, P., Caillier, B., Calegaro, A., Camargo, J., Caminade, S., Campana, A. P. C., Campbell-Burns, P., Canal-Domingo, R., Carell, O., Carreau, S., Cascone, E., Cattaneo, C., Cauhape, P., Cavier, P., Celestin, S., Cellino, A., Champenois, M., Chennaoui Aoudjehane, H., Chevrier, S., Cholvy, P., Chomier, L., Christou, A., Cricchio, D., Coadou, P., Cocaign, J. Y., Cochard, F., Cointin, S., Colombi, E., Colque Saavedra, J. P., Corp, L., Costa, M., Costard, F., Cottier, M., Cournoyer, P., Coustal, E., Cremonese, G., Cristea, O., Cuzon, J. C., D'Agostino, G., Daiffallah, K., Danescu, C., Dardon, A., Dasse, T., Davadan, C., Debs, V., Defaix, J. P., Deleflie, F., D'Elia, M., De Luca, P., De Maria, P., Deverchere, P., Devillepoix, H., Dias, A., Di Dato, A., Di Luca, R., Dominici, F. M., Drouard, A., Dumont, J. L., Dupouy, P., Duvignac, L., Egal, A., Erasmus, N., Esseiva, N., Ebel, A., Eisengarten, B., Federici, F., Feral, S., Ferrant, G., Ferreol, E., Finitzer, P., Foucault, A., Francois, P., Frincu, M., Froger, J. L., Gaborit, F., Gagliarducci, V., Galard, J., Gardavot, A., Garmier, M., Garnung, M., Gautier, B., Gendre, B., Gerard, D., Gerardi, A., Godet, J. P., Grandchamps, A., Grouiez, B., Groult, S., Guidetti, D., Giuli, G., Hello, Y., Henry, X., Herbreteau, G., Herpin, M., Hewins, P., Hillairet, J. J., Horak, J., Hueso, R., Huet, E., Huet, S., Hyaume, F., Interrante, G., Isselin, Y., Jeangeorges, Y., Janeux, P., Jeanneret, P., Jobse, K., Jouin, S., Jouvard, J. M., Joy, K., Julien, J. F., Kacerek, R., Kaire, M., Kempf, M., Krier, C., Kwon, M. K., Lacassagne, L., Lachat, D., Lagain, A., Laisne, E., Lanchares, V., Laskar, J., Lazzarin, M., Leblanc, M., Lebreton, J. P., Lecomte, J., Le Du, P., Lelong, F., Lera, S., Leoni, J. F., Le-Pichon, A., Le-Poupon, P., Leroy, A., Leto, G., Levansuu, A., Lewin, E., Lienard, A., Licchelli, D., Locatelli, H., Loehle, S., Loizeau, D., Luciani, L., Maignan, M., Manca, F., Mancuso, S., Mandon, E., Mangold, N., Mannucci, F., Maquet, L., Marant, D., Marchal, Y., Marin, J. L., Martin-Brisset, J. C., Martin, D., Mathieu, D., Maury, A., Mespoulet, N., Meyer, F., Meyer, J. Y., Meza, E., Moggi Cecchi, V., Moiroud, J. J., Millan, M., Montesarchio, M., Misiano, A., Molinari, E., Molau, S., Monari, J., Monflier, B., Monkos, A., Montemaggi, M., Monti, G., Moreau, R., Morin, J., Mourgues, R., Mousis, O., Nablanc, C., Nastasi, A., Niacsu, L., Notez, P., Ory, M., Pace, E., Paganelli, M. A., Pagola, A., Pajuelo, M., Palacian, J. F., Pallier, G., Paraschiv, P., Pardini, R., Pavone, M., Pavy, G., Payen, G., Pegoraro, A., Pena-Asensio, E., Perez, L., Perez-Hoyos, S., Perlerin, V., Peyrot, A., Peth, F., Pic, V., Pietronave, S., Pilger, C., Piquel, M., Pisanu, T., Poppe, M., Portois, L., Prezeau, J. F., Pugno, N., Quantin, C., Quitte, G., Rambaux, N., Ravier, E., Repetti, U., Ribas, S., Richard, C., Richard, D., Rigoni, M., Rivet, J. P., Rizzi, N., Rochain, S., Rojas, J. F., Romeo, M., Rotaru, M., Rotger, M., Rougier, P., Rousselot, P., Rousset, J., Rousseu, D., Rubiera, O., Rudawska, R., Rudelle, J., Ruguet, J. P., Russo, P., Sales, S., Sauzereau, O., Salvati, F., Schieffer, M., Schreiner, D., Scribano, Y., Selvestrel, D., Serra, R., Shengold, L., Shuttleworth, A., Smareglia, R., Sohy, S., Soldi, M., Stanga, R., Steinhausser, A., Strafella, F., Sylla Mbaye, S., Smedley, A. R. D., Tagger, M., Tanga, P., Taricco, C., Teng, J. P., Tercu, J. O., Thizy, O., Thomas, J. P., Tombelli, M., Trangosi, R., Tregon, B., Trivero, P., Tukkers, A., Turcu, V., Umbriaco, G., Unda-Sanzana, E., Vairetti, R., Valenzuela, M., Valente, G., Varennes, G., Vauclair, S., Vergne, J., Verlinden, M., Vidal-Alaiz, M., Vieira-Martins, R., Viel, A., Vintdevara, D. C., Vinogradoff, V., Volpini, P., Wendling, M., Wilhelm, P., Wohlgemuth, K., Yanguas, P., Zagarella, R., Zollo, A., Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa. INAMAT2 - Institute for Advanced Materials and Mathematics, Ferrière, L., Appéré, T., Bǎdescu, O., Boacă, I., Boatǎ, R., Bramond, Ph., D’Agostino, G., Dǎnescu, C., D’Elia, M., Deverchère, P., Frîncu, M., Hyaumé, F., Laisné, E., Le Dû, P., Niacşu, L., Palacián, J. F., Peña-Asensio, E., Pérez-Hoyos, S., Quitté, G., Rojas, J.F., Ruguet, J.P., Vîntdevarǎ, D. C., Research unit Medical Physics, and Damage and Repair in Cancer Development and Cancer Treatment (DARE)

Subjects
DYNAMICS, [INFO.INFO-AR]Computer Science [cs]/Hardware Architecture [cs.AR], Meteors, Computer science, Radio receiver, [INFO.INFO-DM]Computer Science [cs]/Discrete Mathematics [cs.DM], Surveys, 010502 geochemistry & geophysics, Track (rail transport), 01 natural sciences, Meteorites, meteors, meteoroids, law.invention, Planets and planetary system, [INFO.INFO-TS]Computer Science [cs]/Signal and Image Processing, Methods: observational, law, [INFO.INFO-RB]Computer Science [cs]/Robotics [cs.RO], meteoroids, 010303 astronomy & astrophysics, ComputingMilieux_MISCELLANEOUS, Observational methods, Earth and Planetary Astrophysics (astro-ph.EP), meteoroids -surveys -methods: observational -interplanetary medium, [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph], ORIGIN, [INFO.INFO-AO]Computer Science [cs]/Computer Arithmetic, meteorites, meteors, meteoroids – surveys – methods: observational – interplanetary medium, Meteoroids, RECOVERY, ORBIT, Meteorite, Fully automated, Interplanetary medium, [INFO.INFO-TI]Computer Science [cs]/Image Processing [eess.IV], [INFO.INFO-DC]Computer Science [cs]/Distributed, Parallel, and Cluster Computing [cs.DC], Astrophysics - Instrumentation and Methods for Astrophysics, [SPI.SIGNAL]Engineering Sciences [physics]/Signal and Image processing, FLUX, Real-time computing, fripon, [INFO.INFO-DS]Computer Science [cs]/Data Structures and Algorithms [cs.DS], FOS: Physical sciences, Context (language use), CAMERA, [INFO.INFO-SE]Computer Science [cs]/Software Engineering [cs.SE], [SPI.AUTO]Engineering Sciences [physics]/Automatic, [SDU.STU.PL]Sciences of the Universe [physics]/Earth Sciences/Planetology, 0103 physical sciences, FIREBALL NETWORK, observational [Methods], meteors, Instrumentation and Methods for Astrophysics (astro-ph.IM), 0105 earth and related environmental sciences, Meteoroid, INNISFREE METEORITE, [INFO.INFO-CV]Computer Science [cs]/Computer Vision and Pattern Recognition [cs.CV], Astronomy and Astrophysics, METEORITE FALL, Meteorites, meteors, meteoroid, Camera network, Space and Planetary Science, [SDU]Sciences of the Universe [physics], Interplanetary spaceflight, meteroids tracking, meteoroids - surveys - methods: observational, SYSTEM, Astrophysics - Earth and Planetary Astrophysics, Meteorites
Abstract

Context. Until recently, camera networks designed for monitoring fireballs worldwide were not fully automated, implying that in case of a meteorite fall, the recovery campaign was rarely immediate. This was an important limiting factor as the most fragile - hence precious - meteorites must be recovered rapidly to avoid their alteration. Aims. The Fireball Recovery and InterPlanetary Observation Network (FRIPON) scientific project was designed to overcome this limitation. This network comprises a fully automated camera and radio network deployed over a significant fraction of western Europe and a small fraction of Canada. As of today, it consists of 150 cameras and 25 European radio receivers and covers an area of about 1.5 × 10km. Methods. The FRIPON network, fully operational since 2018, has been monitoring meteoroid entries since 2016, thereby allowing the characterization of their dynamical and physical properties. In addition, the level of automation of the network makes it possible to trigger a meteorite recovery campaign only a few hours after it reaches the surface of the Earth. Recovery campaigns are only organized for meteorites with final masses estimated of at least 500 g, which is about one event per year in France. No recovery campaign is organized in the case of smaller final masses on the order of 50 to 100 g, which happens about three times a year; instead, the information is delivered to the local media so that it can reach the inhabitants living in the vicinity of the fall. Results. Nearly 4000 meteoroids have been detected so far and characterized by FRIPON. The distribution of their orbits appears to be bimodal, with a cometary population and a main belt population. Sporadic meteors amount to about 55% of all meteors. A first estimate of the absolute meteoroid flux (mag < -5; meteoroid size ≥∼1 cm) amounts to 1250/yr/10km. This value is compatible with previous estimates. Finally, the first meteorite was recovered in Italy (Cavezzo, January 2020) thanks to the PRISMA network, a component of the FRIPON science project., FRIPON was initiated by funding from ANR (grant N.13- BS05-0009-03), carried by the Paris Observatory, Muséum National d’Histoire Naturelle, Paris-Saclay University and Institut Pythéas (LAM-CEREGE). VigieCiel was part of the 65 Millions d’Observateurs project, carried by the Muséum National d’Histoire Naturelle and funded by the French Investissements d’Avenir program. FRIPON data are hosted and processed at Institut Pythéas SIP (Service Informatique Pythéas), and a mirror is hosted at IMCCE (Institut de Mécanique Céleste et de Calcul des Éphémérides / Paris Observatory) with the help of IDOC (https://idoc.ias.u-psud.fr) (Integrated Data and Operation Center), supported by CNRS and CNES. PRISMA is the Italian Network for Systematic surveillance of Meteors and Atmosphere. It is a collaboration initiated and coordinated by the Italian National Institute for Astrophysics (INAF) that counts members among research institutes, associations and schools (http://www.prisma.inaf.it). PRISMA was partially funded by 2016 and 2020 Research and Education grants from Fondazione Cassa di Risparmio di Torino and by a 2016 grant from Fondazione Agostino De Mari (Savona). FRIPON-Bilbao is supported by a grant from Diputacion Foral Bizkaia (DFB/BFA). FRIPONMOROI was supported by a grant of the Romanian Ministery of Research and Innovation, CCCDI - UEFISCDI, project number PN-III-P1-1.2-PCCDI2017-0226/16PCCDI/2018 , within PNCDI III. Rio de Janeiro camera is hosted and partially maintained by MAST (Museum of Astronomy and Related Sciences)/MCTIC. The Meteorix project acknowledges supports from labex ESEP (Exploration Spatiale des Environnements Planétaires), DIM-ACAV+ Région Île-de-France, Janus CNES, IDEX Sorbonne Universités and Sorbonne Université.

Published
2020

16. The Virgo interferometric gravitational antenna

Author

Acernese, F., Amico, P., Al-Shourbagy, M., Aoudia, S., Avino, S., Babusci, D., Ballardin, G., Barillé, R., Barone, F., Barsotti, L., Barsuglia, M., Beauville, F., Bizouard, M.A., Boccara, C., Bondu, F., Bosi, L., Bradaschia, C., Braccini, S., Brillet, A., Brisson, V., Brocco, L., Buskulic, D., Calloni, E., Campagna, E., Cavalier, F., Cavalieri, R., Cella, G., Chassande-Mottin, E., Clapson, A.C., Cleva, F., Corda, C., Coulon, J.-P., Cuoco, E., Dattilo, V., Davier, M., De Rosa, R., Di Fiore, L., Di Virgilio, A., Dujardin, B., Eleuteri, A., Enard, D., Ferrante, I., Fidecaro, F., Fiori, I., Flaminio, R., Fournier, J.-D., Frasca, S., Frasconi, F., Freise, A., Gammaitoni, L., Gennai, A., Giazotto, A., Giordano, G., Gouaty, R., Grosjean, D., Guidi, G., Hebri, S., Heitmann, H., Hello, P., Holloway, L., Kreckelberg, S., La Penna, P., Loriette, V., Loupias, M., Losurdo, G., Mackowski, J.-M., Majorana, E., Man, C.N., Mantovani, M., Marion, F., Marque, J., Martelli, F., Masserot, A., Massonnet, L., Mazzoni, M., Milano, L., Moins, C., Moreau, J., Moreau, F., Morgado, N., Mornet, F., Mours, B., Pacheco, J., Pai, A., Palomba, C., Paoletti, F., Pardi, S., Pasqualetti, A., Passaquieti, R., Passuello, D., Perniola, B., Piergiovanni, F., Pinard, L., Poggiani, R., Punturo, M., Puppo, P., Qipiani, K., Rapagnani, P., Reita, V., Remillieux, A., Ricci, F., Ricciardi, I., Ruggi, P., Russo, G., Solimeno, S., Spallicci, A., Stanga, R., Taddei, R., Tombolato, D., Toncelli, A., Tonelli, M., Tournefier, E., Travasso, F., Trinquet, H., Varvella, M., Verkindt, D., Vetrano, F., Viceré, A., Vinet, J.-Y., Vocca, H., Yvert, M., and Zhou, Z.

Published
2007
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17. FRIPON: a worldwide network to track incoming meteoroids

Author

Colas, F., primary, Zanda, B., additional, Bouley, S., additional, Jeanne, S., additional, Malgoyre, A., additional, Birlan, M., additional, Blanpain, C., additional, Gattacceca, J., additional, Jorda, L., additional, Lecubin, J., additional, Marmo, C., additional, Rault, J. L., additional, Vaubaillon, J., additional, Vernazza, P., additional, Yohia, C., additional, Gardiol, D., additional, Nedelcu, A., additional, Poppe, B., additional, Rowe, J., additional, Forcier, M., additional, Koschny, D., additional, Trigo-Rodriguez, J. M., additional, Lamy, H., additional, Behrend, R., additional, Ferrière, L., additional, Barghini, D., additional, Buzzoni, A., additional, Carbognani, A., additional, Di Carlo, M., additional, Di Martino, M., additional, Knapic, C., additional, Londero, E., additional, Pratesi, G., additional, Rasetti, S., additional, Riva, W., additional, Stirpe, G. M., additional, Valsecchi, G. B., additional, Volpicelli, C. A., additional, Zorba, S., additional, Coward, D., additional, Drolshagen, E., additional, Drolshagen, G., additional, Hernandez, O., additional, Jehin, E., additional, Jobin, M., additional, King, A., additional, Nitschelm, C., additional, Ott, T., additional, Sanchez-Lavega, A., additional, Toni, A., additional, Abraham, P., additional, Affaticati, F., additional, Albani, M., additional, Andreis, A., additional, Andrieu, T., additional, Anghel, S., additional, Antaluca, E., additional, Antier, K., additional, Appéré, T., additional, Armand, A., additional, Ascione, G., additional, Audureau, Y., additional, Auxepaules, G., additional, Avoscan, T., additional, Baba Aissa, D., additional, Bacci, P., additional, Bǎdescu, O., additional, Baldini, R., additional, Baldo, R., additional, Balestrero, A., additional, Baratoux, D., additional, Barbotin, E., additional, Bardy, M., additional, Basso, S., additional, Bautista, O., additional, Bayle, L. D., additional, Beck, P., additional, Bellitto, R., additional, Belluso, R., additional, Benna, C., additional, Benammi, M., additional, Beneteau, E., additional, Benkhaldoun, Z., additional, Bergamini, P., additional, Bernardi, F., additional, Bertaina, M. E., additional, Bessin, P., additional, Betti, L., additional, Bettonvil, F., additional, Bihel, D., additional, Birnbaum, C., additional, Blagoi, O., additional, Blouri, E., additional, Boacă, I., additional, Boatǎ, R., additional, Bobiet, B., additional, Bonino, R., additional, Boros, K., additional, Bouchet, E., additional, Borgeot, V., additional, Bouchez, E., additional, Boust, D., additional, Boudon, V., additional, Bouman, T., additional, Bourget, P., additional, Brandenburg, S., additional, Bramond, Ph., additional, Braun, E., additional, Bussi, A., additional, Cacault, P., additional, Caillier, B., additional, Calegaro, A., additional, Camargo, J., additional, Caminade, S., additional, Campana, A. P. C., additional, Campbell-Burns, P., additional, Canal-Domingo, R., additional, Carell, O., additional, Carreau, S., additional, Cascone, E., additional, Cattaneo, C., additional, Cauhape, P., additional, Cavier, P., additional, Celestin, S., additional, Cellino, A., additional, Champenois, M., additional, Chennaoui Aoudjehane, H., additional, Chevrier, S., additional, Cholvy, P., additional, Chomier, L., additional, Christou, A., additional, Cricchio, D., additional, Coadou, P., additional, Cocaign, J. Y., additional, Cochard, F., additional, Cointin, S., additional, Colombi, E., additional, Colque Saavedra, J. P., additional, Corp, L., additional, Costa, M., additional, Costard, F., additional, Cottier, M., additional, Cournoyer, P., additional, Coustal, E., additional, Cremonese, G., additional, Cristea, O., additional, Cuzon, J. C., additional, D’Agostino, G., additional, Daiffallah, K., additional, Dǎnescu, C., additional, Dardon, A., additional, Dasse, T., additional, Davadan, C., additional, Debs, V., additional, Defaix, J. P., additional, Deleflie, F., additional, D’Elia, M., additional, De Luca, P., additional, De Maria, P., additional, Deverchère, P., additional, Devillepoix, H., additional, Dias, A., additional, Di Dato, A., additional, Di Luca, R., additional, Dominici, F. M., additional, Drouard, A., additional, Dumont, J. L., additional, Dupouy, P., additional, Duvignac, L., additional, Egal, A., additional, Erasmus, N., additional, Esseiva, N., additional, Ebel, A., additional, Eisengarten, B., additional, Federici, F., additional, Feral, S., additional, Ferrant, G., additional, Ferreol, E., additional, Finitzer, P., additional, Foucault, A., additional, Francois, P., additional, Frîncu, M., additional, Froger, J. L., additional, Gaborit, F., additional, Gagliarducci, V., additional, Galard, J., additional, Gardavot, A., additional, Garmier, M., additional, Garnung, M., additional, Gautier, B., additional, Gendre, B., additional, Gerard, D., additional, Gerardi, A., additional, Godet, J. P., additional, Grandchamps, A., additional, Grouiez, B., additional, Groult, S., additional, Guidetti, D., additional, Giuli, G., additional, Hello, Y., additional, Henry, X., additional, Herbreteau, G., additional, Herpin, M., additional, Hewins, P., additional, Hillairet, J. J., additional, Horak, J., additional, Hueso, R., additional, Huet, E., additional, Huet, S., additional, Hyaumé, F., additional, Interrante, G., additional, Isselin, Y., additional, Jeangeorges, Y., additional, Janeux, P., additional, Jeanneret, P., additional, Jobse, K., additional, Jouin, S., additional, Jouvard, J. M., additional, Joy, K., additional, Julien, J. F., additional, Kacerek, R., additional, Kaire, M., additional, Kempf, M., additional, Krier, C., additional, Kwon, M. K., additional, Lacassagne, L., additional, Lachat, D., additional, Lagain, A., additional, Laisné, E., additional, Lanchares, V., additional, Laskar, J., additional, Lazzarin, M., additional, Leblanc, M., additional, Lebreton, J. P., additional, Lecomte, J., additional, Le Dû, P., additional, Lelong, F., additional, Lera, S., additional, Leoni, J. F., additional, Le-Pichon, A., additional, Le-Poupon, P., additional, Leroy, A., additional, Leto, G., additional, Levansuu, A., additional, Lewin, E., additional, Lienard, A., additional, Licchelli, D., additional, Locatelli, H., additional, Loehle, S., additional, Loizeau, D., additional, Luciani, L., additional, Maignan, M., additional, Manca, F., additional, Mancuso, S., additional, Mandon, E., additional, Mangold, N., additional, Mannucci, F., additional, Maquet, L., additional, Marant, D., additional, Marchal, Y., additional, Marin, J. L., additional, Martin-Brisset, J. C., additional, Martin, D., additional, Mathieu, D., additional, Maury, A., additional, Mespoulet, N., additional, Meyer, F., additional, Meyer, J. Y., additional, Meza, E., additional, Moggi Cecchi, V., additional, Moiroud, J. J., additional, Millan, M., additional, Montesarchio, M., additional, Misiano, A., additional, Molinari, E., additional, Molau, S., additional, Monari, J., additional, Monflier, B., additional, Monkos, A., additional, Montemaggi, M., additional, Monti, G., additional, Moreau, R., additional, Morin, J., additional, Mourgues, R., additional, Mousis, O., additional, Nablanc, C., additional, Nastasi, A., additional, Niacşu, L., additional, Notez, P., additional, Ory, M., additional, Pace, E., additional, Paganelli, M. A., additional, Pagola, A., additional, Pajuelo, M., additional, Palacián, J. F., additional, Pallier, G., additional, Paraschiv, P., additional, Pardini, R., additional, Pavone, M., additional, Pavy, G., additional, Payen, G., additional, Pegoraro, A., additional, Peña-Asensio, E., additional, Perez, L., additional, Pérez-Hoyos, S., additional, Perlerin, V., additional, Peyrot, A., additional, Peth, F., additional, Pic, V., additional, Pietronave, S., additional, Pilger, C., additional, Piquel, M., additional, Pisanu, T., additional, Poppe, M., additional, Portois, L., additional, Prezeau, J. F., additional, Pugno, N., additional, Quantin, C., additional, Quitté, G., additional, Rambaux, N., additional, Ravier, E., additional, Repetti, U., additional, Ribas, S., additional, Richard, C., additional, Richard, D., additional, Rigoni, M., additional, Rivet, J. P., additional, Rizzi, N., additional, Rochain, S., additional, Rojas, J.F., additional, Romeo, M., additional, Rotaru, M., additional, Rotger, M., additional, Rougier, P., additional, Rousselot, P., additional, Rousset, J., additional, Rousseu, D., additional, Rubiera, O., additional, Rudawska, R., additional, Rudelle, J., additional, Ruguet, J.P., additional, Russo, P., additional, Sales, S., additional, Sauzereau, O., additional, Salvati, F., additional, Schieffer, M., additional, Schreiner, D., additional, Scribano, Y., additional, Selvestrel, D., additional, Serra, R., additional, Shengold, L., additional, Shuttleworth, A., additional, Smareglia, R., additional, Sohy, S., additional, Soldi, M., additional, Stanga, R., additional, Steinhausser, A., additional, Strafella, F., additional, Sylla Mbaye, S., additional, Smedley, A. R. D., additional, Tagger, M., additional, Tanga, P., additional, Taricco, C., additional, Teng, J. P., additional, Tercu, J. O., additional, Thizy, O., additional, Thomas, J. P., additional, Tombelli, M., additional, Trangosi, R., additional, Tregon, B., additional, Trivero, P., additional, Tukkers, A., additional, Turcu, V., additional, Umbriaco, G., additional, Unda-Sanzana, E., additional, Vairetti, R., additional, Valenzuela, M., additional, Valente, G., additional, Varennes, G., additional, Vauclair, S., additional, Vergne, J., additional, Verlinden, M., additional, Vidal-Alaiz, M., additional, Vieira-Martins, R., additional, Viel, A., additional, Vîntdevarǎ, D. C., additional, Vinogradoff, V., additional, Volpini, P., additional, Wendling, M., additional, Wilhelm, P., additional, Wohlgemuth, K., additional, Yanguas, P., additional, Zagarella, R., additional, and Zollo, A., additional

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2020
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18. Cavezzo, the first Italian meteorite recovered by the PRISMA fireball network. Orbit, trajectory, and strewn-field

Author

Gardiol, D, primary, Barghini, D, additional, Buzzoni, A, additional, Carbognani, A, additional, Di Carlo, M, additional, Di Martino, M, additional, Knapic, C, additional, Londero, E, additional, Pratesi, G, additional, Rasetti, S, additional, Riva, W, additional, Salerno, R, additional, Stirpe, G M, additional, Valsecchi, G B, additional, Volpicelli, C A, additional, Zorba, S, additional, Colas, F, additional, Zanda, B, additional, Bouley, S, additional, Jeanne, S, additional, Malgoyre, A, additional, Birlan, M, additional, Blanpain, C, additional, Gattacceca, J, additional, Lecubin, J, additional, Marmo, C, additional, Rault, J L, additional, Vaubaillon, J, additional, Vernazza, P, additional, Affaticati, F, additional, Albani, M, additional, Andreis, A, additional, Ascione, G, additional, Avoscan, T, additional, Bacci, P, additional, Baldini, R, additional, Balestrero, A, additional, Basso, S, additional, Bellitto, R, additional, Belluso, M, additional, Benna, C, additional, Bernardi, F, additional, Bertaina, M E, additional, Betti, L, additional, Bonino, R, additional, Boros, K, additional, Bussi, A, additional, Carli, C, additional, Carriero, T, additional, Cascone, E, additional, Cattaneo, C, additional, Cellino, A, additional, Colombetti, P, additional, Colombi, E, additional, Costa, M, additional, Cremonese, G, additional, Cricchio, D, additional, D’Agostino, G, additional, D’Elia, M, additional, De Maio, M, additional, Demaria, P, additional, Di Dato, A, additional, Di Luca, R, additional, Federici, F, additional, Gagliarducci, V, additional, Gerardi, A, additional, Giuli, G, additional, Guidetti, D, additional, Interrante, G, additional, Lazzarin, M, additional, Lera, S, additional, Leto, G, additional, Licchelli, D, additional, Lippolis, F, additional, Manca, F, additional, Mancuso, S, additional, Mannucci, F, additional, Masi, R, additional, Masiero, S, additional, Meucci, S, additional, Misiano, A, additional, Moggi Cecchi, V, additional, Molinari, E, additional, Monari, J, additional, Montemaggi, M, additional, Montesarchio, M, additional, Monti, G, additional, Morini, P, additional, Nastasi, A, additional, Pace, E, additional, Pardini, R, additional, Pavone, M, additional, Pegoraro, A, additional, Pietronave, S, additional, Pisanu, T, additional, Pugno, N, additional, Repetti, U, additional, Rigoni, M, additional, Rizzi, N, additional, Romeni, C, additional, Romeo, M, additional, Rubinetti, S, additional, Russo, P, additional, Salvati, F, additional, Selvestrel, D, additional, Serra, R, additional, Simoncelli, C, additional, Smareglia, R, additional, Soldi, M, additional, Stanga, R, additional, Strafella, F, additional, Suvieri, M, additional, Taricco, C, additional, Tigani Sava, G, additional, Tombelli, M, additional, Trivero, P, additional, Umbriaco, G, additional, Vairetti, R, additional, Valente, G, additional, Volpini, P, additional, Zagarella, R, additional, and Zollo, A, additional

Published
2020
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19. Measurement of the seismic attenuation performance of the VIRGO Superattenuator

Author

Braccini, S., Barsotti, L., Bradaschia, C., Cella, G., Virgilio, A. Di, Ferrante, I., Fidecaro, F., Fiori, I., Frasconi, F., Gennai, A., Giazotto, A., Paoletti, F., Passaquieti, R., Passuello, D., Poggiani, R., Campagna, E., Guidi, G., Losurdo, G., Martelli, F., Mazzoni, M., Perniola, B., Piergiovanni, F., Stanga, R., Vetrano, F., Viceré, A., Brocco, L., Frasca, S., Majorana, E., Pai, A., Palomba, C., Puppo, P., Rapagnani, P., Ricci, F., Ballardin, G., Barillé, R., Cavalieri, R., Cuoco, E., Dattilo, V., Enard, D., Flaminio, R., Freise, A., Hebri, S., Holloway, L., Penna, P. La, Loupias, M., Marque, J., Moins, C., Pasqualetti, A., Ruggi, P., Taddei, R., Zhang, Z., Acernese, F., Avino, S., Barone, F., Calloni, E., Rosa, R. De, Fiore, L. Di, Eleuteri, A., Giordano, L., Milano, L., Pardi, S., Qipiani, K., Ricciardi, I., Russo, G., Solimeno, S., Babusci, D., Giordano, G., Amico, P., Bosi, L., Gammaitoni, L., Marchesoni, F., Punturo, M., Travasso, F., Vocca, H., Boccara, C., Moreau, J., Loriette, V., Reita, V., Mackowski, J.M., Morgado, N., Pinard, L., Remillieux, A., Barsuglia, M., Bizouard, M.A., Brisson, V., Cavalier, F., Clapson, A.C., Davier, M., Hello, P., Krecklbergh, S., Beauville, F., Buskulic, D., Gouaty, R., Grosjean, D., Marion, F., Masserot, A., Mours, B., Tournefier, E., Tombolato, D., Verkindt, D., Yvert, M., Aoudia, S., Bondu, F., Brillet, A., Chassande-Mottin, E., Cleva, F., Coulon, J.P., Dujardin, B., Fournier, J.D., Heitmann, H., Man, C.N., Spallicci, A., and Vinet, J.Y.

Published
2005
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21. The commissioning of the central interferometer of the Virgo gravitational wave detector

Author

Acernese, F., Amico, P., Arnaud, N., Babusci, D., Barillé, R., Barone, F., Barsotti, L., Barsuglia, M., Beauville, F., Bizouard, M.A., Boccara, C., Bondu, F., Bosi, L., Bracci, L., Braccini, S., Bradaschia, C., Brillet, A., Brisson, V., Brocco, L., Buskulic, D., Calamai, G., Calloni, E., Campagna, E., Cavalier, F., Cella, G., Chassande-Mottin, E., Cleva, F., Cokelaer, T., Corda, C., Coulon, J.P., Cuoco, E., Dattilo, V., Davier, M., De Rosa, R., Di Fiore, L., Di Virgilio, A., Dujardin, B., Eleuteri, A., Enard, D., Ferrante, I., Fidecaro, F., Fiori, I., Flaminio, R., Fournier, J.D., Frasca, S., Frasconi, F., Gammaitoni, L., Gennai, A., Giazotto, A., Giordano, G., Guidi, G., Heitmann, H., Hello, P., Heusse, P., Holloway, L., Kreckelbergh, S., La Penna, P., Loriette, V., Losurdo, G., Loupias, M., Mackowski, J.M., Majorana, E., Man, C.N., Marion, F., Martelli, F., Masserot, A., Massonnet, L., Mazzoni, M., Milano, L., Moreau, F., Moreau, J., Morgado, N., Mornet, F., Mours, B., Pacheco, J., Pai, A., Palomba, C., Paoletti, F., Passaquieti, R., Passuello, D., Perniola, B., Pinard, L., Poggiani, R., Punturo, M., Puppo, P., Qipiani, K., Ramonet, J., Rapagnani, P., Reita, V., Remillieux, A., Ricci, F., Ricciardi, I., Russo, G., Solimeno, S., Stanga, R., Toncelli, A., Tonelli, M., Tournefier, E., Travasso, F., Trinquet, H., Varvella, M., Verkindt, D., Vetrano, F., Veziant, O., Viceré, A., Vinet, J.Y., Vocca, H., and Yvert, M.

Published
2004
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22. Lock acquisition of the central interferometer of the gravitational wave detector Virgo

Author

Acernese, F, Amico, P, Arnaud, N, Babusci, D, Barillé, R, Barone, F, Barsotti, L, Barsuglia, M, Beauville, F, Bizouard, M.A, Boccara, C, Bondu, F, Bosi, L, Bradaschia, C, Bracci, L, Braccini, S, Brillet, A, Brisson, V, Brocco, L, Buskulic, D, Calamai, G, Calloni, E, Campagna, E, Cavalier, F, Cella, G, Chassande-Mottin, E, Cleva, F, Cokelaer, T, Corda, C, Coulon, J.-P, Cuoco, E, Dattilo, V, Davier, M, De Rosa, R, Di Fiore, L, Di Virgilio, A, Dujardin, B, Eleuteri, A, Enard, D, Ferrante, I, Fidecaro, F, Fiori, I, Flaminio, R, Fournier, J.-D, Frasca, S, Frasconi, F, Gammaitoni, L, Gennai, A, Giazotto, A, Giordano, G, Guidi, G, Heitmann, H, Hello, P, Heusse, P, Holloway, L, Kreckelbergh, S, La Penna, P, Loriette, V, Loupias, M, Losurdo, G, Mackowski, J.-M, Majorana, E, Man, C.N, Marion, F, Martelli, F, Masserot, A, Massonnet, L, Mazzoni, M, Milano, L, Moreau, J, Moreau, F, Morgado, N, Mornet, F, Mours, B, Pacheco, J, Pai, A, Palomba, C, Paoletti, F, Passaquieti, R, Passuello, D, Perniola, B, Pinard, L, Poggiani, R, Punturo, M, Puppo, P, Qipiani, K, Ramonet, J, Rapagnani, P, Reita, V, Remillieux, A, Ricci, F, Ricciardi, I, Russo, G, Solimeno, S, Stanga, R, Toncelli, A, Tonelli, M, Tournefier, E, Travasso, F, Trinquet, H, Varvella, M, Verkindt, D, Vetrano, F, Veziant, O, Viceré, A, Vinet, J.-Y, Vocca, H, and Yvert, M

Published
2004
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23. First locking of the Virgo central area interferometer with suspension hierarchical control

Author

Acernese, F, Amico, P, Arnaud, N, Babusci, D, Barillé, R, Barone, F, Barsotti, L, Barsuglia, M, Beauville, F, Bizouard, M.A, Boccara, C, Bondu, F, Bosi, L, Bradaschia, C, Bracci, L, Braccini, S, Brillet, A, Brisson, V, Brocco, L, Buskulic, D, Calamai, G, Calloni, E, Campagna, E, Cavalier, F, Cella, G, Chassande-Mottin, E, Cleva, F, Cokelaer, T, Conforto, G, Corda, C, Coulon, J.-P, Cuoco, E, Dattilo, V, Davier, M, De Rosa, R, Di Fiore, L, Di Virgilio, A, Dujardin, B, Eleuteri, A, Enard, D, Ferrante, I, Fidecaro, F, Fiori, I, Flaminio, R, Fournier, J.-D, Frasca, S, Frasconi, F, Gammaitoni, L, Gennai, A, Giazotto, A, Giordano, G, Guidi, G, Heitmann, H, Hello, P, Heusse, P, Holloway, L, Kreckelberg, S, La Penna, P, Loriette, V, Loupias, M, Losurdo, G, Mackowski, J.-M, Majorana, E, Man, C.N, Marion, F, Martelli, F, Masserot, A, Massonnet, L, Mazzoni, M, Milano, L, Moreau, J, Moreau, F, Morgado, N, Mornet, F, Mours, B, Pacheco, J, Pai, A, Palomba, C, Paoletti, F, Passaquieti, R, Passuello, D, Perniola, B, Pinard, L, Poggiani, R, Punturo, M, Puppo, P, Qipiani, K, Ramonet, J, Rapagnani, P, Reita, V, Remillieux, A, Ricci, F, Ricciardi, I, Russo, G, Solimeno, S, Stanga, R, Toncelli, A, Tonelli, M, Tournefier, E, Travasso, F, Trinquet, H, Varvella, M, Verkindt, D, Vetrano, F, Veziant, O, Viceré, A, Vinet, J.-Y, Vocca, H, and Yvert, M

Published
2004
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24. A local control system for the test masses of the Virgo gravitational wave detector

Author

Acernese, F, Amico, P, Arnaud, N, Babusci, D, Barillé, R, Barone, F, Barsotti, L, Barsuglia, M, Beauville, F, Bizouard, M.A, Boccara, C, Bondu, F, Bosi, L, Bradaschia, C, Bracci, L, Braccini, S, Brillet, A, Brisson, V, Brocco, L, Buskulic, D, Calamai, G, Calloni, E, Campagna, E, Cavalier, F, Cella, G, Chassande-Mottin, E, Cleva, F, Cokelaer, T, Conforto, G, Corda, C, Coulon, J.-P, Cuoco, E, Dattilo, V, Davier, M, De Rosa, R, Di Fiore, L, Di Virgilio, A, Dujardin, B, Eleuteri, A, Enard, D, Ferrante, I, Fidecaro, F, Fiori, I, Flaminio, R, Fournier, J.-D, Frasca, S, Frasconi, F, Gammaitoni, L, Gennai, A, Giazotto, A, Giordano, G, Guidi, G, Heitmann, H, Hello, P, Heusse, P, Holloway, L, Kreckelbergh, S, La Penna, P, Loriette, V, Loupias, M, Losurdo, G, Mackowski, J.-M, Majorana, E, Man, C.N, Marion, F, Martelli, F, Masserot, A, Massonnet, L, Mazzoni, M, Milano, L, Moreau, J, Moreau, F, Morgado, N, Mornet, F, Mours, B, Pacheco, J, Pai, A, Palomba, C, Paoletti, F, Passaquieti, R, Passuello, D, Perniola, B, Pinard, L, Poggiani, R, Punturo, M, Puppo, P, Qipiani, K, Ramonet, J, Rapagnani, P, Reita, V, Remillieux, A, Ricci, F, Ricciardi, I, Russo, G, Solimeno, S, Stanga, R, Toncelli, A, Tonelli, M, Tournefier, E, Travasso, F, Trinquet, H, Varvella, M, Verkindt, D, Vetrano, F, Veziant, O, Viceré, A, Vinet, J.-Y, Vocca, H, and Yvert, M

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2004
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27. Capacitive sensing of test mass motion with nanometer precision over millimeter-wide sensing gaps for space-borne gravitational reference sensors

Author

Armano, M., Audley, H., Auger, G., Baird, J., Bassan, M., Binetruy, P., Born, M., Bortoluzzi, D., Brandt, N., Caleno, M., Cavalleri, A., Cesarini, A., Cruise, A. M., Danzmann, K., de Deus Silva, M., De Rosa, R., Di Fiore, L., Diepholz, I., Dixon, G., Dolesi, R., Dunbar, N., Ferraioli, L., Ferroni, V., Fitzsimons, E. D., Flatscher, R., Freschi, M., García Marirrodriga, C., Gerndt, R., Gesa, L., Gibert, F., Giardini, D., Giusteri, R., GRADO, ANIELLO, Grimani, C., Grzymisch, J., 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., Meshksar, N., Nofrarias, M., Paczkowski, S., Perreur-Lloyd, M., Petiteau, A., Pivato, P., Plagnol, E., Prat, P., Ragnit, U., Ramos-Castro, J., Reiche, J., Robertson, D. I., Rozemeijer, H., Rivas, F., Russano, G., Sarra, P., Schleicher, A., Slutsky, J., Sopuerta, C. F., Stanga, R., Sumner, T. J., Texier, D., Thorpe, J. I., Trenkel, C., Tröbs, M., Vetrugno, D., Vitale, S., Wanner, G., Ward, H., Wass, P. J., Wealthy, D., Weber, W. J., Wissel, L., Wittchen, A., Zambotti, A., Zanoni, C., Ziegler, T., Zweifel, P., LISA Pathfinder Collaboration, Universitat Politècnica de Catalunya. Departament d'Enginyeria Electrònica, AstroParticule et Cosmologie (APC (UMR_7164)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7), LISA Pathfinder, Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Armano, M., Audley, H., Auger, G., Baird, J., Bassan, M., Binetruy, P., Born, M., Bortoluzzi, D., Brandt, N., Caleno, M., Cavalleri, A., Cesarini, A., Cruise, A. M., Danzmann, K., De Deus Silva, M., De Rosa, R., Di Fiore, L., Diepholz, I., Dixon, G., Dolesi, R., Dunbar, N., Ferraioli, L., Ferroni, V., Fitzsimons, E. D., Flatscher, R., Freschi, M., Garcia Marirrodriga, C., Gerndt, R., Gesa, L., Gibert, F., Giardini, D., Giusteri, R., Grado, A., Grimani, C., Grzymisch, J., Harrison, I., Heinzel, G., Hewitson, M., Hollington, D., Hoyland, D., Hueller, M., Inchauspe, H., Jennrich, O., Jetzer, P., Johlander, B., Karnesis, N., Kaune, B., Korsakova, N., Killow, C. J., Lobo, J. A., Lloro, I., Liu, L., Lopez-Zaragoza, J. P., Maarschalkerweerd, R., Mance, D., Martin, V., Martin-Polo, L., Martino, J., Martin-Porqueras, F., Madden, S., Mateos, I., Mcnamara, P. W., Mendes, J., Mendes, L., Meshksar, N., Nofrarias, M., Paczkowski, S., Perreur-Lloyd, M., Petiteau, A., Pivato, P., Plagnol, E., Prat, P., Ragnit, U., Ramos-Castro, J., Reiche, J., Robertson, D. I., Rozemeijer, H., Rivas, F., Russano, G., Sarra, P., Schleicher, A., Slutsky, J., Sopuerta, C. F., Stanga, R., Sumner, T. J., Texier, D., Thorpe, J. I., Trenkel, C., Trobs, M., Vetrugno, D., Vitale, S., 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.

Subjects
noise, detector: performance, Capacitive sensing, gap, Astronomy & Astrophysics, gravitational radiation: direct detection, 01 natural sciences, Noise (electronics), rotation, Displacement (vector), Physics, Particles & Fields, Gravitational waves, Optics, Ones gravitacionals, 0103 physical sciences, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], 010306 general physics, MISSION, Physics, LISA, Science & Technology, Spacecraft, 010308 nuclear & particles physics, business.industry, Gravitational wave, Settore FIS/01 - Fisica Sperimentale, gravitational radiation, Ranging, gravitational radiation detector, FOURIER-TRANSFORM, observatory, Pathfinder, gravitation, Física::Astronomia i astrofísica [Àrees temàtiques de la UPC], Physical Sciences, [PHYS.GRQC]Physics [physics]/General Relativity and Quantum Cosmology [gr-qc], Millimeter, business
Abstract

We report on the performance of the capacitive gap-sensing system of the Gravitational Reference Sensor on board the LISA Pathfinder spacecraft. From in-flight measurements, the system has demonstrated a performance, down to 1 mHz, that is ranging between 0.7 and \ud 1.8\ud \ud \ud aF\ud \ud Hz\ud −\ud 1\ud /\ud 2\ud . That translates into a sensing noise of the test mass motion within 1.2 and \ud 2.4\ud \ud nm\ud \ud Hz\ud −\ud 1\ud /\ud 2\ud in displacement and within 83 and \ud 170\ud \ud nrad\ud \ud Hz\ud −\ud 1\ud /\ud 2\ud in rotation. This matches the performance goals for LISA Pathfinder, and it allows the successful implementation of the gravitational waves observatory LISA. A \ud 1\ud /\ud f\ud tail has been observed for frequencies below 1 mHz, the tail has been investigated in detail with dedicated in-flight measurements, and a model is presented in the paper. A projection of such noise to frequencies below 0.1 mHz shows that an improvement of performance at those frequencies is desirable for the next generation of gravitational reference sensors for space-borne gravitational waves observation.

Published
2017

32. Relativistic effects and space geodesy with laser ranged satellites: the LARASE research program

Author

Lucchesi D. M., Anselmo L., Bassan M., Magnafico C., Pardini C., Peron R., Pucacco G., Stanga R., and Visco M.

Subjects
General Relativity, Physics::Space Physics, Space geodesy, Laser ranged satellites, LARASE
Abstract

LARASE (LAser RAnged Satellites Experiment) aims to provide refined measurements of Einstein's theory of General Relativity by means of the very precise measurements of the Satellite Laser Ranging technique. In this regard, a big effort of LARASE is devoted to improve the dynamical model of the two LAGEOS satellites and of the new satellite LARES. The target is to obtain a more precise and accurate determination of their orbit. Indeed, the systematic error sources due to both the gravitational and non-gravitational perturbations may corrupt the relativistic measurements. At the same time, it is indisputable that a more accurate and precise orbit determination (POD) of the satellites, based on a more reliable dynamical model, represents a fundamental precondition to eventually reach a sub-mm precision in the SLR range residuals and, consequently, to gather benefits in the fields of space geodesy and of geophysics. The results obtained over the last year will be presented in terms of the improvements achieved in the dynamical model, in the satellites POD and, finally, in the measurement of the relativistic Lense-Thirring precession of their orbit.

Published
2018

33. Fundamental physics measurements with laser-ranged satellites

Author

Lucchesi D.M., Anselmo L., Bassan M., Magnafico C., Pardini C., Peron R., Pucacco G., Stanga R., and Visco M.

Subjects
General Relativity, Physics::Space Physics, Precise orbit determination, Laser ranged satellites, LARASE, Physics::Geophysics
Abstract

The key role that laser-ranged satellites -- such as the two LAGEOS (LAser GEOdynamic Satellite) -- have had in the field of space geodesy, with a paramount of significant applications and results in geophysics, as well in the measurements of tiny relativistic effects in the weak-field and slow-motion (WFSM) limit of Einstein's theory of general relativity (GR), is well known. In this regard, these achievements have been gathered thanks to two very important ingredients: i) the quality of the tracking observations of the orbit of the satellites, guaranteed by the powerful Satellite Laser Ranging (SLR) technique, and ii) the quality of their overall dynamical model implemented in a software code. Moreover, today, GR has to be considered a fundamental pillar of space geodesy and of geophysics in general: the use of atomic clocks on-board a navigation satellite or on-ground, are just two important examples, among many. Indeed, terms like "relativistic metrology", "relativistic geodesy" and "relativistic celestial mechanics" are very frequent in the literature, in fact they are pertinent and represent bridges among fields wrongly considereted separated in the past. The SLR technique is one of the techniques that constitute the Global Geodetic Observing System (GGOS). In the near future it is expected, within the GGOS activities, an improvement of one order of magnitude in global accuracies in the observational as well as the theoretical components of space geodesy. This implies improvements in measuring accuracies, in reference frames realization, in modelling, in the stations network geometry and, consequently, into the accuracies involved in fundamental physics measurements using space geodesy techniques. However, in order to reach these ambitious objectives with a fruitful contribution from the existing satellites, as the two LAGEOS and the more recently launched LARES, several improvements are necessary in their precise orbit determination (POD). For instance, under this point of view, an hot topic is constituted by the knowledge of the so-called center-of-mass correction for these satellites, that directly impact the range determination of the satellites, i.e. the precision of their normal points, and correlates with the so-called range bias of the Earth-bound tracking stations. One more very important aspect that deeply affects the POD of the satellites is represented by a reliable modelling of the subtle thermal effects produced by the visible solar radiation and the infrared radiation emitted by the Earth's surface. These are the Sun Yarkovsky-Schach effect and the Earth-Yarkovsky effect. Their complexity arise from two main aspects: i) the knowledge of the temperature distribution on the satellite surface, and ii) the knowledge of the satellite attitude, i.e of its spin vector evolution. In this talk, the main activities of the LAser Ranged Satellites Experiment (LARASE) will be described. The LARASE research program is funded by the Italian National Institute for Nuclear Physics (INFN) and it is a collaboration between different institutions. The main goal of LARASE is to provide accurate measurements for the gravitational interaction in the WFSM limit of GR by means of the very precise laser tracking of geodetic satellites orbiting around the Earth. In particular, LARASE aims to improve the dynamical model of the current best laser-ranged satellites in order to perform a refined POD of their orbit. This represents a first step towards new refined tests and measurements of GR in the field of the Earth and of a most profitable use of the orbit analysis of the considered satellites for space geodesy and geophysics. The current results of LARASE in terms of development of new models for the non-gravitational perturbations acting on the two LAGEOS and LARES satellites, their POD and new measurements of relativistic effects on their orbit will be shown together with an accurate evaluation of the error budget due to the main systematic sources of error.

Published
2018

34. Improving sensitivity and duty-cycle of a double torsion pendulum

Author

Bassan, M, primary, De Laurentis, M, additional, De Rosa, R, additional, Di Fiore, L, additional, Errico, L, additional, Garufi, F, additional, Grado, A, additional, Minenkov, Y, additional, Pucacco, G, additional, Spagnuolo, V, additional, Stanga, R, additional, and Visco, M, additional

Published
2019
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35. Dust as the cause of spots on Jupiter

Author

Field, G. B, Tozzi, G. P, and Stanga, R. M

Subjects
Astrophysics
Abstract

The long-lived spots caused by the impact of fragments of Comet S-L 9 on Jupiter can be understood if clouds of dust are produced by the impact. These clouds reside in the stratosphere, where they absorb visible light that would ordinarily reflect from the cloud deck below, and reflect radiation at infrared wavelengths that would ordinarily be absorbed by atmospheric methane. Here we show that, provided that the nucleus of a fragment is composed substantially of silicates and has a diameter greater than about 0.4 km, dust in the required amounts will condense from the hot gas composed of cometary and Jovian material ejected from the site where the fragment entered, and the dust will be suspended in the stratosphere for long periods. Particles about 1 micron in radius can explain both the optical properties and longevities of the spots. According to our model, a silicate band should be present in the 10 - micron spectra of the spots.

Published
1995

36. LARASE: Testing general relativity with satellite laser ranging

Author

Anselmo L., Bassan M., Lucchesi D., Magnafico C., Pardini C., Peron R., Pucacco G., Stanga R., and Visco M.

Subjects
General relativity, Satellite laser ranging, LARASE
Abstract

LARASE is an experiment devoted to test General Relativity in its weak-field linearized approximation using the geodetic satellites LAGEOS and LARES. One main target is the measurements of the Lense-Thirring effect with an accuracy higher than in the past. We present the LARASE activitities and a preliminary measurement of the effect.

Published
2017

37. Measuring relativistic effects in the field of the Earth with LASER ranged satellites and the LARASE research program

Author

Lucchesi D. M., Anselmo L., Bassan M., Magnafico C., Pardini C., Peron R., Pucacco G., Stanga R., and Visco M.

Subjects
General Relativity, LARASE experiment, Physics::Space Physics, LAGEOS and LARES satellites
Abstract

The main goal of the LARASE (LAser RAnged Satellites Experiment) research program is to obtain refined tests of Einstein's theory of General Relativity (GR) by means of very precise measurements of the round-trip time among a number of ground stations of the International Laser Ranging Service (ILRS) network and a set of geodetic satellites. These measurements are guaranteed by means of the powerful and precise Satellite Laser Ranging (SLR) technique. In particular, a big effort of LARASE is dedicated to improve the dynamical models of the LAGEOS, LAGEOS II and LARES satellites, with the objective to reach a more precise and accurate determination of their orbit. These activities contribute to reach a final error budget that should be robust and reliable in the evaluation of the main systematic errors sources that come to play a major role in masking the relativistic precession on the orbit of these laser-ranged satellites. These error sources may be of gravitational and non-gravitational origin. It is important to stress that a more accurate and precise orbit determination, based on more reliable dynamical models, represents a fundamental prerequisite in order to reach a sub-mm precision in the root-mean-square of the SLR range residuals and, consequently, to gather benefits in the fields of geophysics and space geodesy, such as stations coordinates knowledge, Earth's geocenter determination and the realization of the Earth's reference frame. The results reached over the last year will be presented in terms of the improvements achieved in the dynamical model, in the orbit determination and, finally, in the measurement of the relativistic precessions that act on the orbit of the satellites considered.

Published
2017

38. Relativistic effects measurements in the field of the Earth and the LARASE research program

Author

Lucchesi D.M., Anselmo L., Bassan M., Magnafico C., Pardini C., Peron R., Pucacco G., Stanga R., and Visco M.

Subjects
General Relativity, Physics::Space Physics, Satellite measurements, LARASE
Abstract

The main goal of the LARASE (LAser RAnged Satellites Experiment) research program is to obtain refined tests of Einstein's theory of General Relativity by means of very precise laser measurements of the round-trip time from ground stations to a set of geodetic satellites. In particular, a big effort of LARASE is dedicated to improve the dynamical models of the LAGEOS, LAGEOS II and LARES satellites, with the objective to obtain a more precise and accurate determination of their orbit. These activities contribute also to reach a reliable and robust error budget for the main sources of systematic errors. The results reached over the last year will be presented in terms of the improvements achieved in the dynamical model, in the orbit determination and, finally, in the measurement of the relativistic precessions that act on the orbit of the satellites.

Published
2017

39. Earth gravity field modeling and relativistic measurements with laser-ranged satellites and the LARASE research program

Author

Pucacco G., Lucchesi D. M., Anselmo L., Bassan M., Magnafico C., Pardini C., Peron R., Stanga R., and Visco M.

Subjects
General relativity, Physics::Space Physics, Earth gravity, Laser ranged satellites, LARASE, Physics::Geophysics
Abstract

The importance of General Relativity (GR) for space geodesy -- and for geodesy in general -- is well known since several decades and it has been confirmed by a number of very significant results. For instance, GR plays a fundamental role for the following very notable techniques: Satellite-and-Lunar Laser Ranging (SLR/LLR), Very Long Baseline Interferometry (VLBI), Doppler Orbitography and Radio-positioning Integrated by Satellite (DORIS), and Global Navigation Satellite Systems (GNSS). Each of these techniques is intimately and closely related with both GR and geodesy, i.e. they are linked in a loop where benefits in one field provide positive improvements in the other ones. A common ingredient for a suitable and reliable use of each of these techniques is represented by the knowledge of the Earth's gravitational field, both in its static and temporal dependence. Spaceborne gravimetry, with the inclusion of accelerometers and gradiometers on board dedicated satellites, together with microwave links between satellites and GPS measurements, have allowed a huge improvement in the determination of the Earth's geopotential during the last 15 years. In the near future, further improvements are expected in this knowledge thanks to the inclusion of laser inter-satellite link and the possibility to compare frequency and atomic standards by a direct use of atomic clocks, both on the Earth's surface and in space. Such results will be also important for the possibility to further improve the GR tests and measurements in the field of the Earth with laser-ranged satellites in order to compare the predictions of Einstein's theory with those of other (proposed) relativistic theories for the interpretation of the gravitational interaction. Within the present paper we describe the state of the art of such measurements with geodetic satellites, as the two LAGEOS and LARES, and we discuss the effective impact of the systematic errors of gravitational origin on the measurement of the relativistic precessions expected on some of the orbital elements of these laser-ranged satellites.

Published
2017

40. Long slit spectroscopy of NGC 5506

Author

Stanga, R. M, Maiolino, R, and Rodriguezespinosa, J. M

Subjects
Astrophysics
Abstract

The galaxy NGC 5506 hosts an active nucleus, that presents characteristics that are intermediate between Sy1 and Sy2. We discuss long slit spectra of NGC 5506 in the ranges 4675-5475 A and 6300-7125 A, that were obtained at three different position angles, in Apr. 1991 at the WHT 4.2 m telescope. The peculiar kinematics of the emitting gas has already been observed by other researchers; following the model proposed by the other researchers, that the emitting gas is located in two cones, we determined the aperture of the cones. The data, moreover, support the hypothesis that the gas is receding from the nucleus. We modelled the intensity and the ratios of the emission lines, and verified that the active nucleus of NGC 5506 can be described as a Sy1 nucleus, with the UV-X source that is partially obscured to our line of sight. On the contrary, a good fraction of the interstellar gas of the galaxy is directly illuminated and photoionized by the central source. Our data show evidence of star formation close to the nucleus; we estimated the star formation rate, that is high with respect to 'normal' spirals, but not high enough to be comparable to star formation rates in a starburst galaxy.

Published
1993

41. Narrow band imaging and long slit spectroscopy of UGC 5101

Author

Stanga, R. M, Mannucci, F, and Rodriguezespinosa, J. M

Subjects
Astrophysics
Abstract

UGC 5101 (z = 0.04; D is approximately equal to 240 Mpc) is one of the so called Ultraluminous IRAS sources. Two important properties of the members of this group are their L(sub IR) is greater than or equal to 10(exp 12) solar luminosity, and their space density in the universe up to z is less than 0.1 is equal or even larger than the space density of the quasars. Further noteworthy features of the Ultraluminous IRAS sources are their being morphologically peculiar and the fact that they all seem to host active nuclei in their center. We have observed UGC 5101 in an effort to study the interplay between the gas ionized by the central active nucleus and that gas ionized by other processes which may hold important clues to the understanding of the entire picture of this object. In particular these other ionizing processes could well be massive stars formed recently after the galactic encounter and shocks possibly also related to the galaxy collision. The data that we discuss were obtained between Dec. 1989 and Jan. 1992 with the WHT 4.2 m telescope using the two-arm spectrograph ISIS. Several spectral frames were obtained at three different position angles: PA 84--along the tail of the galaxy; PA 32--along the dust lane; and PA 110. The blue spectra are centered on the H beta line, while the red spectra are centered on the H alpha line. In the configuration we used for the long slit spectra, the spectral scale was 0.74 A per pixel, and the spatial scale was .37 arcsec per pixel; we also observed the H alpha region with a spectral scale of .37 A per pixel, at position angle 84. The narrow band images were obtained at the auxiliary port of ISIS, with a scale of .2 arcsec per pixel, and were centered at the H alpha wavelength, and on the adjacent continuum. The H alpha images and the spectra support the following model. UGC 5101 hosts an active nucleus; the NLR extends up to about 1.5 kpc and shows a complex velocity field, superimposed on the rotation curve of the galaxy. Besides the NLR, in the H alpha image are visible tow bright cones that extend up to 3 kpc along PA 32. The long slit spectra at PA 32 show that the velocity field of the gas in these regions is peculiar, while the ionization structure of the gas is similar to that of the NLR.

Published
1993

42. Performances of an ultralow frequency vertical pre-isolator for the VIRGO seismic attenuation chains

Author

DeSalvo, R., DiVirgilio, A., Errico, A., Guotong, Feng, Ferrante, I., Frasconi, F., Gaddi, A., Gennai, A., Gennaro, G., Giazotto, A., Holloway, L., Losurdo, G., Maggiore, M., Mancini, S., Mazzoni, M., Palla, F., Hui Bao, Pan, Paoletti, F., Pasqualetti, A., Passaquieti, R., Passuello, D., Poggiani, R., Popolizio, P., Raffaelli, F., Righetti, D., Ruberti, R., Rubino, V., Ruggi, P., Stanga, R., Taddei, R., Valentini, R., Vicere, A., Winterflood, J., Zhou, Zhang, Bernardini, M., Bozzi, A., Braccini, S., Bradaschia, C., Casciano, C., Cella, G.C., Ciampa, A., Curci, G., D'Ambrosio, E., Dattilo, V., DeCarolis, G.C., and Delapierre, A.

Published
1999
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44. Testing general relativity with satellite laser ranging and the laser ranged satellites experiment (LARASE) research program: current results and perspectives

Author

Lucchesi D. M., Anselmo L., Bassan M., Magnafico C., Pardini C., Peron R., Pucacco, G., Stanga, R., and Visco, M.

Subjects
General relativity, Precession measurements, Physics::Space Physics, Satellite laser Rìranging, Precise orbit determination, Earth's weak field, LARASE
Abstract

LARASE aims to perform reliable measurements of the gravitational interaction in the weak-field and slow-motion limit of General Relativity (GR) by means of the laser tracking of the two LAGEOS and LARES satellites. These satellites are orbiting the Earth at a rather high altitude and their trajectory is known with an accuracy of a few cm level. By a least-squares fit of the ranging data it is possible to extract the GR effects on the orbital elements, namely in the Euler angles that define the orientation in space of the orbit, and by means of suitable combinations of such observables it is therefore possible to obtain the measurements of the GR precessions that arise from the Earth's gravitoelectric and gravitomagnetic fields, as well as from the de Sitter effect. These measurements represent the first step to obtain constraints of selected post-Newtonian parameter values in the field of the Earth, as well as to check the predictions of GR with respect to those of other theories for the gravitational interaction. In order to obtain these precise measurements of relativistic effects it is of primary importance to provide a reliable error budget based on an accurate evaluation of the main systematic error sources due to gravitational and nongravitational perturbations. In this talk the various ongoing LARASE activities will be presented and discussed, along with the current results regarding satellites dynamics modeling improvements, precise orbit determination and preliminary measurements of relativistic effects, with the perspectives for the final goals of this research program.

Published
2016

45. The LARASE spin model of the two LAGEOS and LARES satellites

Author

Lucchesi D. M., Anselmo L., Bassan M., Magnafico C., Pardini C., Peron R., Pucacco G., Stanga R., and Visco M.

Subjects
J.2 PHYSICAL SCIENCES AND ENGINEERING, Spin Model, Precise Orbit Determination, LARES, Spin Evolution, Non-Gravitational Perturbations, LAGEOS, LARASE
Abstract

The LARASE Spin Model of the two LAGEOS and LARES satellites.

Published
2016

46. The orbital decay of the semi-major axis of LARES and the LARASE contribution to SLR measurements for applications in the fields of space Geodesy and Geophysics

Author

Lucchesi D. M., Anselmo L., Bassan M., Magnafico C., Pardini C., Peron R., Pucacco G., Stanga R., and Visco M.

Subjects
J.2 PHYSICAL SCIENCES AND ENGINEERING, Physics::Space Physics, Precise Orbit Determination, Neutral Atmosphere Drag, LARES, Non-Gravitational Perturbations, Semi-major Axis Decay, LARASE, Physics::Geophysics
Abstract

The orbital decay of the semi-major axis of LARES and the LARASE contribution to SLR measurements for applications in the fields of space geodesy and geophysics.

Published
2016

47. Precise orbit determination of the two LAGEOS and LARES satellites and the LARASE activities

Author

Lucchesi D. M., Anselmo L., Bassan M., Magnafico C., Pardini C., Peron R., Pucacco G., Stanga R., and Visco M.

Subjects
Satellite Laser Ranging, General Relativity, Precession Measurements, Earth's Weak Field, J.2 PHYSICAL SCIENCES AND ENGINEERING, Precise Orbit Determination, LARASE
Abstract

Precise Orbit Determination of the two LAGEOS and LARES satellites and the LARASE activities.

Published
2016

48. A new general model for the evolution of the spin vector of the two LAGEOS satellites and LARES and the LARASE research program

Author

Lucchesi D.M., Anselmo L., Bassan M., Magnafico C., Pardini C., Peron R., Pucacco G., Stanga R., and Visco M.

Subjects
General Relativity, Spin Model, Precise Orbit Determination, LAGEOS and LARES satellites, Non-Gravitational Perturbations, Physics::Geophysics, Physics::Space Physics, Spin modeling, LARES, Spin Evolution, Astrophysics::Earth and Planetary Astrophysics, LAGEOS, LARASE
Abstract

The LARASE (LAser RAnged Satellites Experiment) research program has its main objectives in tests and measurements of general relativity (GR) via a precise orbit determination (POD) of a set of geodetic satellites. In order to reach such goals by means of very precise measurements of a number of relativistic parameters (and, at the same time, with the objective to provide a robust and unassailable error budget of the main systematic effects), beside reviewing previous models we are also developing new models for the main perturbations that act on the orbits of the two LAGEOS satellites and on that of the new LARES satellite. In this talk we focus on the modeling of the spin vector of these satellites. Indeed, the spin knowledge, both in orientation and rate, is of fundamental importance in order to correctly model the thermal effects on the surface of these satellites, as in the case of the solar Yarkovsky-Schach effect and of the Earth's Thermal drag (also known as Earth-Yarkovsky effect or Rubincam effect). These are very important non-gravitational perturbations (NGP) that produce long-term effects on the orbit of the cited satellites. Therefore, the improvement of the accuracy of the models developed to handle these NGP represents a very significant result. Such improvements, with the possibility of a more reliable POD for the satellites, will be very useful in the field of GR measurements with laser-ranged satellites, as well as in the field of space geodesy and, in general, in those of geophysics.

Published
2016

49. The LARASE spin model of the two LAGEOS satellites and of LARES

Author

Visco M., Lucchesi D. M., Anselmo L., Bassan M., Magnafico C., Nobili A. M., Pardini C., Peron R., Pucacco G., and Stanga R.

Subjects
Spin Model, Physics::Space Physics, Precise Orbit Determination, LARES, Non-Gravitational Perturbations, LAGEOS, LARASE, Physics::Geophysics
Abstract

Satellite Laser Ranging (SLR) represents a very important technique of the observational space geodesy. In fact, Lunar Laser Ranging, Very Long Baseline Interferometry, Global Navigation Satellite Systems, Doppler Orbitography and Radiopositioning Integrated by Satellite, together with SLR constitute the Global Geodetic Observing System (GGOS). In the context of the GGOS activities, improvements in technology and in modeling will produce advances in geodesy and geophysics as well as in General Relativity (GR) measurements. Therefore, these important research fields are not independent, but tightly related each other. The LARASE (LAser RAnged Satellites Experiment) research program has its main objectives in tests and measurements of Einstein's theory of GR via a Precise Orbit Determination (POD) from a set of geodetic satellites. In order to reach such goals by means of very precise measurements of a number of relativistic parameters (and, at the same time, to provide a robust and unassailable error budget of the main systematic effects), we are also reviewing previous models and we are developing new models of the main perturbations (both gravitational and non-gravitational) that act on the orbits of the two LAGEOS satellites and on that of LARES. Within this paper we focus on modeling the spin vector of these satellites. The spin knowledge, both in orientation and rate, is of fundamental importance in order to correctly model the thermal effects acting on the surface of these satellites. These are very important non-gravitational perturbations (NGP) that produce long-term effects on the orbit of the cited satellites, especially for the two LAGEOS, and improvements in their modeling will be very useful both in the field of GR measurements and in those of space geodesy and geophysical applications as said above. Indeed, the current RMS of the range residuals of the LAGEOS satellites, obtained by the Analysis Centers of the International Laser Ranging Service, is at the level of a few cm since 1992, down to a cm or less during last years. However, because of the incompleteness of the dynamical models of the orbit of the satellites, empirical accelerations have been strongly used to reach such results. In this context, a step forward in the models developed for the NGP will be very useful to avoid the need of empirical accelerations and it also represents an essential prerequisite to reach a sub-mm precision in the RMS of the SLR range residuals and the corresponding benefits in geophysics and geodesy, as for stations coordinates knowledge, Earth's geocenter and reference frame realization. The paper will focus upon the improvements we obtained with respect on previous models of the spin of the two LAGEOS satellites based on averaged equations for the external torques in the rapid-spin approximation, as well as in a new general model that we developed and based on the resolution of the full set of Euler equations.

Published
2016

50. The orbital decay of the semi-major axis of LARES and the LARASE contribution to SLR measurements for applications in the fields of space Geodesy and Geophysics

Author

Pardini C., Anselmo L., Lucchesi D. M., Bassan M., Magnafico C., Nobili A. M., Peron R., Pucacco G., Stanga R., and Visco M.

Subjects
Neutral atmosphere drag, Physics::Space Physics, LARES, Precise orbit determination, Non-gravitational perturbations, LARASE, Semi-major axis decay
Abstract

The new laser-ranged satellite LARES (LAser RElativity Satellite) is expected to provide new refined measurements of relativistic physics as well as significant contributions to space geodesy and geophysics. The very low area-to-mass ratio of this passive and dense satellite was chosen to reduce as much as possible the disturbing effects due to the non-gravitational perturbations in order to compensate for its much lower altitude with respect to the two older LAGEOS (LAser GEOdynamic Satellite) satellites, currently the best tracked satellites of the International Laser Ranging Service network. Indeed, because of its height, about 1450 km with respect to the 5900 km of the two LAGEOS, LARES is subject to a much stronger perturbation provoked by the neutral drag than that on the two LAGEOS. From a Precise Orbit Determination (POD) of LARES over a time span of about 3.7 years we have been able to measure an orbital decay in the residuals of its semi-major axis of about 1 m/yr, that corresponds to a transversal mean acceleration of about -1.457 x 10-11 m/s^2. This POD has been obtained analyzing LARES normal points with the GEODYN II (NASA/GSFC) software. Neither the neutral drag nor the thermal effects have been included in the dynamical models of GEODYN II. By means of a modified version of the SATellite Reentry Analysis Program (SATRAP) of ISTI/CNR, the neutral drag perturbation has been computed over the same time span accounting for the measured decay and considering the real evolution of the solar and geomagnetic activities for several atmospheric models. In particular, assuming as reference for the unmodeled transversal acceleration due to the neutral atmosphere the above value, the drag coefficient estimated by SATRAP is comparable to the average value estimated by GEODYN II in a least square fit of the tracking data. This means that the current best models developed for the atmosphere behavior are able to account for the observed decay, within their errors and range of applicability. A further analysis is needed in order to extract from the observed decay a possible smaller contribution related with other unmodeled effects, as the thermal ones, acting on the satellite. In this context it will be necessary to fix the contribution of the signature of the drag and of the thermal effects in the residuals of the other orbital elements of LARES. This study falls within the activities of the LARASE (LAser RAnged Satellites Experiment) research program. LARASE main goal is to provide new and refined measurements of the relativistic effects acting on the orbit of the two LAGEOS and LARES satellites. In particular, a major point of these activities is to provide a final robust and reliable error budget for the main systematic effects of gravitational and non-gravitational origin. Therefore, a special attention is devoted to the modeling of the non-gravitational perturbations acting on these passive laser-ranged satellites. Improvements in their modeling will be useful both in the field of general relativity measurements and in those of space geodesy and geophysical applications.

Published
2016

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