176 results on '"Porrovecchio G"'
Search Results
2. An updated list of AGILE bright gamma-ray sources and their variability in pointing mode
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Verrecchia, F., Pittori, C., Chen, A. W., Bulgarelli, A., Tavani, M., Lucarelli, F., Giommi, P., Vercellone, S., Pellizzoni, A., Giuliani, A., Longo, F., Barbiellini, G., Trifoglio, M., Gianotti, F., Argan, A., Antonelli, L. A., Caraveo, P., Cardillo, M., Cattaneo, P. W., Cocco, V., Colafrancesco, S., Contessi, T., Costa, E., Del Monte, E., De Paris, G., Di Cocco, G., Di Persio, G., Donnarumma, I., Evangelista, Y., Fanari, G., Feroci, M., Ferrari, A., Fiorini, M., Fornari, F., Fuschino, F., Froysland, T., Frutti, M., Galli, M., Labanti, C., Lapshov, I., Lazzarotto, F., Liello, F., Lipari, P., Mattaini, E., Marisaldi, M., Mastropietro, M., Mauri, A., Mauri, F., Mereghetti, S., Morelli, E., Moretti, E., Morselli, A., Pacciani, L., Perotti, F., Piano, G., Picozza, P., Pilia, M., Pontoni, C., Porrovecchio, G., Prest, M., Primavera, R., Pucella, G., Rapisarda, M., Rappoldi, A., Rossi, E., Rubini, A., Sabatini, S., Santolamazza, P., Soffitta, P., Stellato, S., Striani, E., Tamburelli, F., Traci, A., Trois, A., Vallazza, E., Vittorini, V., Zanello, D., Salotti, L., and Valentini, G. more...
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Astrophysics - High Energy Astrophysical Phenomena - Abstract
We present a variability study of a sample of bright gamma-ray (30 MeV -- 50 GeV) sources. This sample is an extension of the first AGILE catalogue of gamma-ray sources (1AGL), obtained using the complete set of AGILE observations in pointing mode performed during a 2.3 year period from July 9, 2007 until October 30, 2009. The dataset of AGILE pointed observations covers a long time interval and its gamma-ray data archive is useful for monitoring studies of medium-to-high brightness gamma-ray sources. In the analysis reported here, we used data obtained with an improved event filter that covers a wider field of view, on a much larger (about 27.5 months) dataset, integrating data on observation block time scales, which mostly range from a few days to thirty days. The data processing resulted in a better characterized source list than 1AGL was, and includes 54 sources, 7 of which are new high galactic latitude (|BII| >= 5) sources, 8 are new sources on the galactic plane, and 20 sources from the previous catalogue with revised positions. Eight 1AGL sources (2 high-latitude and 6 on the galactic plane) were not detected in the final processing either because of low OB exposure and/or due to their position in complex galactic regions. We report the results in a catalogue of all the detections obtained in each single OB, including the variability results for each of these sources. In particular, we found that 12 sources out of 42 or 11 out of 53 are variable, depending on the variability index used, where 42 and 53 are the number of sources for which these indices could be calculated. Seven of the 11 variable sources are blazars, the others are Crab pulsar+nebula, LS I +61{\deg}303, Cyg X-3, and 1AGLR J2021+4030., Comment: 30 pages, 12 figures more...
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- 2013
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Catalog
3. Galactic Sources Science With Agile: The Case Of The Carina Region
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Sabatini, S., Tavani, M., Pian, E., Bulgarelli, A., Caraveo, P., Viotti, R., Corcoran, M. F., Giuliani, A., Pittori, C., Verrecchia, F., Vercellone, S., Mereghetti, S., Argan, A., Barbiellini, G., Boffelli, F., Cattaneo, P. W., Chen, A. W., Cocco, V., D'Ammando, F., Costa, E., De Paris, G., Del Monte, E., Di Cocco, G., Donnarumma, I., Evangelista, Y., Ferrari, A., Feroci, M., Fiorini, M., Froysland, T., Fuschino, F., Galli, M., Gianotti, F., Labanti, C., Lapshov, I., Lazzarotto, F., Lipari, P., Longo, F., Marisaldi, M., Mastropietro, M., Morelli, E., Moretti, E., Morselli, A., Pacciani, L., Pellizzoni, A., Perotti, F., Piano, G., Picozza, P., Pilia, M., Porrovecchio, G., Pucella, G., Prest, M., Rapisarda, M., Rappoldi, A., Rubini, A., Soffitta, P., Trifoglio, M., Trois, A., Vallazza, E., Vittorini, V., Zambra, A., Zanello, D., Santolamazza, P., Giommi, P., Colafrancesco, S., Antonelli, L. A., and Salotti, L. more...
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Astrophysics - High Energy Astrophysical Phenomena - Abstract
During its first 2 years of operation, the gamma-ray AGILE satellite accumulated an extensive dataset for the Galactic plane. The data have been monitored for transient sources and several gamma-ray sources were detected. Their variability and possible association were studied. In this talk we will focus on the results of extensive observations of the Carina Region during the time period 2007 July - 2009 January, for a total livetime of ~130 days. The region is extremely complex, hosting massive star formation, with the remarkable colliding wind binary Eta Carinae, massive star clusters and HII regions (e.g. NGC 3324, RCW49, Westerlund II) and a giant molecular cloud extending over 150 pc (between l=284.7 and l=289). The Carina Nebula itself is the largest and IR highest surface brightness nebula of the Southern emisphere. We monitored several gamma ray sources in the Carina Region. In particular we detect a gamma ray source (1AGL J1043-5931) consistent with the position of Eta Carinae and report a remarkable 2-days gamma-ray flaring episode from this source on 2008 Oct 11-13. If 1AGL J1043-5931 is associated with the Eta Car system, our data provides the long sought first detection above 100 MeV of a colliding wind binary., Comment: 5 pages, 5 figures, proceedings of RICAP 2009 more...
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- 2012
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4. The flaring blazars of the first 1.5 years of the AGILE mission
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Pacciani, L., Bulgarelli, A., Chen, A. W., D'Ammando, F., Donnarumma, I., Giuliani, A., Longo, F., Pucella, G., Tavani, M., Vercellone, S., Vittorini, V., Argan, A., Barbiellini, G., Boffelli, F., Caraveo, P., Cattaneo, P. W., Cocco, V., Costa, E., De Paris, G., Del Monte, E., Di Cocco, G., Evangelista, Y., Ferrari, A., Feroci, M., Fiorini, M., Froysland, T., Fuschino, F., Galli, M., Gianotti, F., Labanti, C., Lapshov, I., Lazzarotto, F., Lipari, P., Marisaldi, M., Mastropietro, M., Mereghetti, S., Morelli, E., Moretti, E., Morselli, A., Pellizzoni, A., Perotti, F., Piano, G., Picozza, P., Pilia, M., Porrovecchio, G., Prest, M., Rapisarda, M., Rappoldi, A., Rubini, A., Sabatini, S., Soffitta, P., Trifoglio, M., Trois, A., Vallazza, E., Zambra, A., Zanello, D., Antonelli, L. A., Colafrancesco, S., Giommi, P., Pittori, C., Verrecchia, F., Santolamazza, P., and Salotti, L. more...
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Astrophysics - High Energy Astrophysical Phenomena - Abstract
We report the AGILE gamma-ray observations and the results of the multiwavelength campaigns on seven flaring blazars detected by the mission: During two multiwavelength campaigns, we observed gamma-ray activity from two Flat Spectrum Radio Quasars of the Virgo region, e.g. 3C 279 and 3C 273 (the latter being the first extragalactic source simultaneously observed with the gamma-ray telescope and the hard X ray imager of the mission). Due to the large FOV of the AGILE/GRID instrument, we achieved an almost continuous coverage of the FSRQ 3C 454.3. The source showed flux above 10E-6 photons/cm2/s (E > 100 MeV) and showed day by day variability during all the AGILE observing periods. In the EGRET era, the source was found in high gamma-ray activity only once. An other blazar, PKS 1510-089 was frequently found in high gamma-ray activity. S5 0716+71, an intermediate BL Lac object, exhibited a very high gamma-ray activity and fast gamma-ray variability during a period of intense optical activity. We observed high gamma-ray activity from W Comae, a BL Lac object, and Mrk 421, an high energy peaked BL Lac object. For this source, a multiwavelength campaign from optical to TeV has been performed. more...
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- 2011
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5. First results about on-ground calibration of the Silicon Tracker for the AGILE satellite
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AGILE Collaboration, Cattaneo, P. W., Argan, A., Boffelli, F., Bulgarelli, A., Buonomo, B., Chen, A. W., D'Ammando, F., Froysland, T., Fuschino, F., Galli, M., Gianotti, F., Giuliani, A., Longo, F., Marisaldi, M., Mazzitelli, G., Pellizzoni, A., Prest, M., Pucella, G., Quintieri, L., Rappoldi, A., Tavani, M., Trifoglio, M., Trois, A., Valente, P., Vallazza, E., Vercellone, S., Zambra, A., Barbiellini, G., Caraveo, P., Cocco, V., Costa, E., De Paris, G., Del Monte, E., Di Cocco, G., Donnarumma, I., Evangelista, Y., Feroci, M., Ferrari, A., Fiorini, M., Labanti, C., Lapshov, I., Lazzarotto, F., Lipari, P., Mastropietro, M., Mereghetti, S., Morelli, E., Moretti, E., Morselli, A., Pacciani, L., Perotti, F., Piano, G., Picozza, P., Pilia, M., Porrovecchio, G., Rapisarda, M., Rubini, A., Sabatini, S., Soffitta, P., Striani, E., Vittorini, V., Zanello, D., Colafrancesco, S., Giommi, P., Pittori, C., Santolamazza, P., Verrecchia, F., and Salotti, L. more...
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Astrophysics - Instrumentation and Methods for Astrophysics ,Physics - Instrumentation and Detectors - Abstract
The AGILE scientific instrument has been calibrated with a tagged $\gamma$-ray beam at the Beam Test Facility (BTF) of the INFN Laboratori Nazionali di Frascati (LNF). The goal of the calibration was the measure of the Point Spread Function (PSF) as a function of the photon energy and incident angle and the validation of the Monte Carlo (MC) simulation of the silicon tracker operation. The calibration setup is described and some preliminary results are presented., Comment: Presented at the 2nd Roma International Conference on Astroparticle Physics 2009, Villa Mondragone, Rome, Italy, May 13-15 2009. Pages 6, Figures 10 more...
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- 2011
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6. Characterization of a tagged $\gamma$-ray beam line at the DA$\Phi$NE Beam Test Facility
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Cattaneo, P. W., Argan, A., Boffelli, F., Bulgarelli, A., Buonomo, B., Chen, A. W., D'Ammando, F., Froysland, T., Fuschino, F., Galli, M., Gianotti, F., Giuliani, A., Longo, F., Marisaldi, M., Mazzitelli, G., Pellizzoni, A., Prest, M., Pucella, G., Quintieri, L., Rappoldi, A., Tavani, M., Trifoglio, M., Trois, A., Valente, P., Vallazza, E., Vercellone, S., Zambra, A., Barbiellini, G., Caraveo, P., Cocco, V., Costa, E., De Paris, G., Del Monte, E., Di Cocco, G., Donnarumma, I., Evangelista, Y., Feroci, M., Ferrari, A., Fiorini, M., Labanti, C., Lapshov, I., Lazzarotto, F., Lipari, P., Mastropietro, M., Mereghetti, S., Morelli, E., Moretti, E., Morselli, A., Pacciani, L., Perotti, F., Piano, G., Picozza, P., Pilia, M., Porrovecchio, G., Rapisarda, M., Rubini, A., Sabatini, S., Soffitta, P., Striani, E., Vittorini, V., Zanello, D., Colafrancesco, S., Giommi, P., Pittori, C., Santolamazza, P., Verrecchia, F., and Salotti, L. more...
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Physics - Instrumentation and Detectors ,Astrophysics - Instrumentation and Methods for Astrophysics - Abstract
At the core of the AGILE scientific instrument, designed to operate on a satellite, there is the Gamma Ray Imaging Detector (GRID) consisting of a Silicon Tracker (ST), a Cesium Iodide Mini-Calorimeter and an Anti-Coincidence system of plastic scintillator bars. The ST needs an on-ground calibration with a $\gamma$-ray beam to validate the simulation used to calculate the energy response function and the effective area versus the energy and the direction of the $\gamma$ rays. A tagged $\gamma$-ray beam line was designed at the Beam Test Facility (BTF) of the INFN Laboratori Nazionali of Frascati (LNF), based on an electron beam generating $\gamma$ rays through bremsstrahlung in a position-sensitive target. The $\gamma$-ray energy is deduced by difference with the post-bremsstrahlung electron energy \cite{prest}-\cite{hasan}. The electron energy is measured by a spectrometer consisting of a dipole magnet and an array of position sensitive silicon strip detectors, the Photon Tagging System (PTS). The use of the combined BTF-PTS system as tagged photon beam requires understanding the efficiency of $\gamma$-ray tagging, the probability of fake tagging, the energy resolution and the relation of the PTS hit position versus the $\gamma$-ray energy. This paper describes this study comparing data taken during the AGILE calibration occurred in 2005 with simulation., Comment: 23 pages; 17 figures. Second and final version accepted by Nucl. Instr. & Meth. A more...
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- 2011
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7. AGILE detection of extreme gamma-ray activity from the blazar PKS 1510-089 during March 2009. Multifrequency analysis
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D'Ammando, F., Raiteri, C. M., Villata, M., Romano, P., Pucella, G., Krimm, H. A., Covino, S., Orienti, M., Giovannini, G., Vercellone, S., Pian, E., Donnarumma, I., Vittorini, V., Tavani, M., Argan, A., Barbiellini, G., Boffelli, F., Bulgarelli, A., Caraveo, P., Cattaneo, P. W., Chen, A. W., Cocco, V., Costa, E., Del Monte, E., De Paris, G., Di Cocco, G., Evangelista, Y., Feroci, M., Ferrari, A., Fiorini, M., Froysland, T., Frutti, M., Fuschino, F., Galli, M., Gianotti, F., Giuliani, A., Labanti, C., Lapshov, I., Lazzarotto, F., Lipari, P., Longo, F., Marisaldi, M., Mereghetti, S., Morselli, A., Pacciani, L., Pellizzoni, A., Perotti, F., Piano, G., Picozza, P., Pilia, M., Porrovecchio, G., Prest, M., Rapisarda, M., Rappoldi, A., Rubini, A., Sabatini, S., Soffitta, P., Striani, E., Trifoglio, M., Trois, A., Vallazza, E., Zambra, A., Zanello, D., Agudo, I., Aller, H. D., Aller, M. F., Arkharov, A. A., Bach, U., Benitez, E., Berdyugin, A., Blinov, D. A., Buemi, C. S., Chen, W. P., Di Paola, A., Dolci, M., Forne, E., Fuhrmann, L., Gomez, J. L., Gurwell, M. A., Jordan, B., Jorstad, S. G., Heidt, J., Hiriart, D., Hovatta, T., Hsiao, H. Y., Kimeridze, G., Konstantinova, T. S., Kopatskaya, E. N., Koptelova, E., Kurtanidze, O. M., Kurtanidze, S. O., Larionov, V. M., Lahteenmaki, A., Leto, P., Lindfors, E., Marscher, A. P., McBreen, B., McHardy, I. M., Morozova, D. A., Nilsson, K., Pasanen, M., Roca-Sogorb, M., Sillanpaa, A., Takalo, L. O., Tornikoski, M., Trigilio, C., Troitsky, I. S., Umana, G., Antonelli, L. A., Colafrancesco, S., Pittori, C., Santolamazza, P., Verrecchia, F., Giommi, P., and Salotti, L. more...
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Astrophysics - High Energy Astrophysical Phenomena - Abstract
We report on the extreme gamma-ray activity from the FSRQ PKS 1510-089 observed by AGILE in March 2009. In the same period a radio-to-optical monitoring of the source was provided by the GASP-WEBT and REM. Moreover, several Swift ToO observations were triggered, adding important information on the source behaviour from optical/UV to hard X-rays. We paid particular attention to the calibration of the Swift/UVOT data to make it suitable to the blazars spectra. Simultaneous observations from radio to gamma rays allowed us to study in detail the correlation among the emission variability at different frequencies and to investigate the mechanisms at work. In the period 9-30 March 2009, AGILE detected an average gamma-ray flux of (311+/-21)x10^-8 ph cm^-2 s^-1 for E>100 MeV, and a peak level of (702+/-131)x10^-8 ph cm^-2 s^-1 on daily integration. The gamma-ray activity occurred during a period of increasing activity from near-IR to UV, with a flaring episode detected on 26-27 March 2009, suggesting that a single mechanism is responsible for the flux enhancement observed from near-IR to UV. By contrast, Swift/XRT observations seem to show no clear correlation of the X-ray fluxes with the optical and gamma-ray ones. However, the X-ray observations show a harder photon index (1.3-1.6) with respect to most FSRQs and a hint of harder-when-brighter behaviour, indicating the possible presence of a second emission component at soft X-ray energies. Moreover, the broad band spectrum from radio-to-UV confirmed the evidence of thermal features in the optical/UV spectrum of PKS 1510-089 also during high gamma-ray state. On the other hand, during 25-26 March 2009 a flat spectrum in the optical/UV energy band was observed, suggesting an important contribution of the synchrotron emission in this part of the spectrum during the brightest gamma-ray flare, therefore a significant shift of the synchrotron peak., Comment: 13 pages, 7 figures, 3 tables. Accepted for publication in Astronomy and Astrophysics more...
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- 2011
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8. Multiwavelength observations of 3C 454.3 II. The AGILE 2007 December campaign
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Donnarumma, I., Pucella, G., Vittorini, V., D'Ammando, F., Vercellone, S., Raiteri, C. M., Villata, M., Perri, M., Chen, W. P., Smart, R. L., Kataoka, J., Kawai, N., Mori, Y., Tosti, G., Impiombato, D., Takahashi, T., Sato, R., Tavani, M., Bulgarelli, A., Chen, A. W., Giuliani, A., Longo, F., Pacciani, L., Argan, A., Barbiellini, G., Boffelli, F., Caraveo, P., Cattaneo, P. W., Cocco, V., Contessi, T., Costa, E., Del Monte, E., De Paris, G., Di Cocco, G., Evangelista, Y., Feroci, M., Ferrari, A., Fiorini, M., Froysland, T., Frutti, M., Fuschino, F., Galli, M., Gianotti, F., Labanti, C., Lapshov, I., Lazzarotto, F., Lipari, P., Marisaldi, M., Mastropietro, M., Mereghetti, S., Morelli, E., Moretti, E., Morselli, A., Pellizzoni, A., Perotti, F., Picozza, P., Pilia, M., Porrovecchio, G., Prest, M., Rapisarda, M., Rappoldi, A., Rubini, A., Sabatini, S., Scalise, E., Soffitta, P., Striani, E., Trifoglio, M., Trois, A., Vallazza, E., Zambra, A., Zanello, D., Pittori, C., Santolamazza, P., Verrecchia, F., Giommi, P., Antonelli, L. A., Colafrancesco, S., and Salotti, L. more...
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Astrophysics - Cosmology and Nongalactic Astrophysics ,Astrophysics - High Energy Astrophysical Phenomena - Abstract
We report on the second AGILE multiwavelength campaign of the blazar 3C 454.3 during the first half of December 2007. This campaign involved AGILE, Spitzer, Swift,Suzaku,the WEBT consortium,the REM and MITSuME telescopes,offering a broad band coverage that allowed for a simultaneous sampling of the synchrotron and inverse Compton (IC) emissions.The 2-week AGILE monitoring was accompanied by radio to optical monitoring by WEBT and REM and by sparse observations in mid-Infrared and soft/hard X-ray energy bands performed by means of Target of Opportunity observations by Spitzer, Swift and Suzaku, respectively.The source was detected with an average flux of~250x10^{-8}ph cm^-2s^-1 above 100 MeV,typical of its flaring states.The simultaneous optical and gamma-ray monitoring allowed us to study the time-lag associated with the variability in the two energy bands, resulting in a possible ~1-day delay of the gamma-ray emission with respect to the optical one. From the simultaneous optical and gamma-ray fast flare detected on December 12, we can constrain the delay between the gamma-ray and optical emissions within 12 hours. Moreover, we obtain three Spectral Energy Distributions (SEDs) with simultaneous data for 2007 December 5, 13, 15, characterized by the widest multifrequency coverage. We found that a model with an external Compton on seed photons by a standard disk and reprocessed by the Broad Line Regions does not describe in a satisfactory way the SEDs of 2007 December 5, 13 and 15. An additional contribution, possibly from the hot corona with T=10^6 K surrounding the jet, is required to account simultaneously for the softness of the synchrotron and the hardness of the inverse Compton emissions during those epochs., Comment: 13 pages, 8 figures, 2 tables, Accepted for publication in ApJ more...
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- 2009
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9. Monitoring the hard X-ray sky with SuperAGILE
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Feroci, M., Costa, E., Del Monte, E., Donnarumma, I., Evangelista, Y., Lapshov, I., Lazzarotto, F., Pacciani, L., Rapisarda, M., Soffitta, P., Di Persio, G., Frutti, M., Mastropietro, M., Morelli, E., Porrovecchio, G., Rubini, A., Antonelli, A., Argan, A., Barbiellini, G., Boffelli, F., Bulgarelli, A., Caraveo, P., Cattaneo, P. W., Chen, A. W., Cocco, V., Colafrancesco, S., Cutini, S., D'Ammando, F., De Paris, G., Di Cocco, G., Fanari, G., Ferrari, A., Fiorini, M., Fornari, F., Fuschino, F., Froysland, T., Galli, M., Gasparrini, D., Gianotti, F., Giommi, P., Giuliani, A., Labanti, C., Liello, F., Lipari, P., Longo, F., Mattaini, E., Marisaldi, M., Mauri, A., Mauri, F., Mereghetti, S., Moretti, E., Morselli, A., Pellizzoni, A., Perotti, F., Piano, G., Picozza, P., Pilia, M., Pittori, C., Pontoni, C., Preger, B., Prest, M., Primavera, R., Pucella, G., Rappoldi, A., Rossi, E., Sabatini, S., Santolamazza, P., Tavani, M., Stellato, S., Tamburelli, F., Traci, A., Trifoglio, M., Trois, A., Vallazza, E., Vercellone, S., Verrecchia, F., Vittorini, V., Zambra, A., Zanello, D., and Salotti, L. more...
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Astrophysics - Instrumentation and Methods for Astrophysics ,Astrophysics - High Energy Astrophysical Phenomena - Abstract
SuperAGILE is the hard X-ray monitor of the AGILE gamma ray mission, in orbit since 23$^{rd}$ April 2007. It is an imaging experiment based on a set of four independent silicon strip detectors, equipped with one-dimensional coded masks, operating in the nominal energy range 18-60 keV. The main goal of SuperAGILE is the observation of cosmic sources simultaneously with the main gamma-ray AGILE experiment, the Gamma Ray Imaging Detector (GRID). Given its $\sim$steradian-wide field of view and its $\sim$15 mCrab day-sensitivity, SuperAGILE is also well suited for the long-term monitoring of Galactic compact objects and the detection of bright transients. The SuperAGILE detector properties and design allow for a 6 arcmin angular resolution in each of the two independent orthogonal projections of the celestial coordinates. Photon by photon data are continuously available by the experiment telemetry, and are used to derive images and fluxes of individual sources, with integration times depending on the source intensity and position in the field of view. In this paper we report on the main scientific results achieved by SuperAGILE over its first two years in orbit, until April 2009., Comment: Accepted for publication on Astronomy & Astrophysics more...
- Published
- 2009
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10. Multiwavelength observations of a TeV-Flare from W Comae
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VERITAS collaboration, Acciari, V. A., Aliu, E., Aune, T., Beilicke, M., Benbow, W., Bottcher, M., Boltuch, D., Buckley, J. H., Bradbury, S. M., Bugaev, V., Byrum, K., Cannon, A., Cesarini, A., Ciupik, L., Cogan, P., Cui, W., Dickherber, R., Duke, C., Falcone, A., Finley, J. P., Fortin, P., Fortson, L., Furniss, A., Galante, N., Gall, D., Gibbs, K., Gillanders, G. H., Grube, J., Guenette, R., Gyuk, G., Hanna, D., Holder, J., Hui, C. M., Humensky, T. B., Kaaret, P., Karlsson, N., Kertzman, M., Kieda, D., Konopelko, A., Krawczynski, H., Krennrich, F., Lang, M. J., LeBohec, S., Maier, G., McArthur, S., McCann, A., McCutcheon, M., Millis, J., Moriarty, P., Ong, R. A., Otte, A. N., Pandel, D., Perkins, J. S., Pichel, A., Pohl, M., Quinn, J., Ragan, K., Reyes, L. C., Reynolds, P. T., Roache, E., Rose, H. J., Sembroski, G. H., Smith, A. W., Steele, D., Theiling, M., Thibadeau, S., Varlotta, A., Vassiliev, V. V., Vincent, S., Wakely, S. P., Ward, J. E., Weekes, T. C., Weinstein, A., Weisgarber, T., Williams, D. A., Wissel, S., Wood, M., Team, The AGILE, Pian, E., Vercellone, S., Donnarumma, I., D'Ammando, F., Bulgarelli, A., Chen, A. W., Giuliani, A., Longo, F., Pacciani, L., Pucella, G., Vittorini, V., Tavani, M., Argan, A., Barbiellini, G., Caraveo, P., Cattaneo, P. W., Cocco, V., Costa, E., Del Monte, E., De Paris, G., Di Cocco, G., Evangelista, Y., Feroci, M., Fiorini, M., Froysland, T., Frutti, M., Fuschino, F., Galli, M., Gianotti, F., Labanti, C., Lapshov, I., Lazzarotto, F., Lipari, P., Marisaldi, M., Mastropietro, M., Mereghetti, S., Morelli, E., Morselli, A., Pellizzoni, A., Perotti, F., Piano, G., Picozza, P., Pilia, M., Porrovecchio, G., Prest, M., Rapisarda, M., Rappoldi, A., Rubini, A., Soffitta, S. Sabatini P., Trifoglio, M., Trois, A., Vallazza, E., Zambra, A., Zanello, D., Pittori, C., Santolamazza, P., Verrecchia, F., Giommi, P., Colafrancesco, S., Salotti, L., Villata, M., Raiteri, C. M., Aller, H. D., Aller, M. F., Arkharov, A. A., Efimova, N. V., Larionov, V. M., Leto, P., Ligustri, R., Lindfors, E., Pasanen, M., Kurtanidze, O. M., Tetradze, S. D., Lahteenmaki, A., Kotiranta, M., Cucchiara, A., Romano, P., Nesci, R., Pursimo, T., Heidt, J., Benitez, E., Hiriart, D., Nilsson, K., Berdyugin, A., Mujica, R., Dultzin, D., Lopez, J. M., Mommert, M., Sorcia, M., and Perez, I. de la Calle more...
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Astrophysics - High Energy Astrophysical Phenomena - Abstract
We report results from an intensive multiwavelength campaign on the intermediate-frequency-peaked BL Lacertae object W Com (z=0.102) during a strong outburst of very high energy gamma-ray emission in June 2008. The very high energy gamma-ray signal was detected by VERITAS on 2008 June 7-8 with a flux F(>200 GeV) = (5.7+-0.6)x10^-11 cm-2s-1, about three times brighter than during the discovery of gamma-ray emission from W Com by VERITAS in 2008 March. The initial detection of this flare by VERITAS at energies above 200 GeV was followed by observations in high energy gamma-rays (AGILE, E>100 MeV), and X-rays (Swift and XMM-Newton), and at UV, and ground-based optical and radio monitoring through the GASP-WEBT consortium and other observatories. Here we describe the multiwavelength data and derive the spectral energy distribution (SED) of the source from contemporaneous data taken throughout the flare., Comment: 26 pages, 5 figures; Accepted for publication by The Astrophysical Journal more...
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- 2009
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11. Detection of Gamma-ray Emission from the Eta-Carinae Region
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Tavani, M., Sabatini, S., Pian, E., Bulgarelli, A., Caraveo, P., Viotti, R. F., Corcoran, M. F., Giuliani, A., Pittori, C., Verrecchia, F., Vercellone, S., Mereghetti, S., Argan, A., Barbiellini, G., Boffelli, F., Cattaneo, P. W., Chen, A. W., Cocco, V., D'Ammando, F., Costa, E., De Paris, G., Del Monte, E., Di Cocco, G., Donnarumma, I., Evangelista, Y., Ferrari, A., Feroci, M., Fiorini, M., Froysland, T., Fuschino, F., Galli, M., Gianotti, F., Labanti, C., Lapshov, I., Lazzarotto, F., Lipari, P., Longo, F., Marisaldi, M., Mastropietro, M., Morelli, E., Moretti, E., Morselli, A., Pacciani, L., Pellizzoni, A., Perotti, F., Piano, G., Picozza, P., Pilia, M., Porrovecchio, G., Pucella, G., Prest, M., Rapisarda, M., Rappoldi, A., Rubini, A., Soffitta, P., Trifoglio, M., Trois, A., Vallazza, E., Vittorini, V., Zambra, A., Zanello, D., Santolamazza, P., Giommi, P., Colafrancesco, S., Antonelli, L. A., and Salotti, L. more...
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Astrophysics - High Energy Astrophysical Phenomena - Abstract
We present the results of extensive observations by the gamma-ray AGILE satellite of the Galactic region hosting the Carina nebula and the remarkable colliding wind binary Eta Carinae (Eta Car) during the period 2007 July to 2009 January. We detect a gamma-ray source (1AGL J1043-5931) consistent with the position of Eta Car. If 1AGL J1043-5931 is associated with the Eta Car system our data provide the long sought first detection above 100 MeV of a colliding wind binary. The average gamma-ray flux above 100 MeV and integrated over the pre-periastron period 2007 July to 2008 October is F = (37 +/- 5) x 10-8 ph cm-2 s-1 corresponding to an average gamma-ray luminosity of L = 3.4 x 10^34 erg s-1 for a distance of 2.3 kpc. We also report a 2-day gamma-ray flaring episode of 1AGL J1043-5931 on 2008 Oct. 11-13 possibly related to a transient acceleration and radiation episode of the strongly variable shock in the system., Comment: 5 pages, 4 figure, accepted for publication in ApJ Letters more...
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- 2009
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12. First AGILE Catalog of High Confidence Gamma-Ray Sources
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Pittori, C., Verrecchia, F., Chen, A. W., Bulgarelli, A., Pellizzoni, A., Giuliani, A., Vercellone, S., Longo, F., Tavani, M., Giommi, P., Barbiellini, G., Trifoglio, M., Gianotti, F., Argan, A., Antonelli, A., Boffelli, F., Caraveo, P., Cattaneo, P. W., Cocco, V., Colafrancesco, S., Contessi, T., Costa, E., Cutini, S., D'Ammando, F., Del Monte, E., De Paris, G., Di Cocco, G., Di Persio, G., Donnarumma, I., Evangelista, Y., Fanari, G., Feroci, M., Ferrari, A., Fiorini, M., Fornari, F., Fuschino, F., Froysland, T., Frutti, M., Galli, M., Gasparrini, D., Labanti, C., Lapshov, I., Lazzarotto, F., Liello, F., Lipari, P., Mattaini, E., Marisaldi, M., Mastropietro, M., Mauri, A., Mauri, F., Mereghetti, S., Morelli, E., Moretti, E., Morselli, A., Pacciani, L., Perotti, F., Piano, G., Picozza, P., Pilia, M., Pontoni, C., Porrovecchio, G., Preger, B., Prest, M., Primavera, R., Pucella, G., Rapisarda, M., Rappoldi, A., Rossi, E., Rubini, A., Sabatini, S., Santolamazza, P., Scalise, E., Soffitta, P., Stellato, S., Striani, E., Tamburelli, F., Traci, A., Trois, A., Vallazza, E., Vittorini, V., Zambra, A., Zanello, D., and Salotti, L. more...
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Astrophysics - High Energy Astrophysical Phenomena - Abstract
We present the first catalog of high-confidence gamma-ray sources detected by the AGILE satellite during observations performed from July 9, 2007 to June 30, 2008. Catalogued sources are detected by merging all the available data over the entire time period. AGILE, launched in April 2007, is an ASI mission devoted to gamma-ray observations in the 30 MeV - 50 GeV energy range, with simultaneous X-ray imaging capability in the 18-60 keV band. This catalog is based on Gamma-Ray Imaging Detector (GRID) data for energies greater than 100 MeV. For the first AGILE catalog we adopted a conservative analysis, with a high-quality event filter optimized to select gamma-ray events within the central zone of the instrument Field of View (radius of 40 degrees). This is a significance-limited (4 sigma) catalog, and it is not a complete flux-limited sample due to the non-uniform first year AGILE sky coverage. The catalog includes 47 sources, 21 of which are associated with confirmed or candidate pulsars, 13 with Blazars (7 FSRQ, 4 BL Lacs, 2 unknown type), 2 with HMXRBs, 2 with SNRs, 1 with a colliding-wind binary system, 8 with unidentified sources., Comment: Revised version, 15 pages, 3 figures, 3 tables. To be published in Astronomy and Astrophysics. Text improved and clarified. Refined analysis of complex regions of the Galactic plane yields a new list of high-confidence sources including 47 sources (compared with the 40 sources appearing in the first version) more...
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- 2009
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13. Gamma-ray burst detection with the AGILE mini-calorimeter
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Marisaldi, M., Labanti, C., Fuschino, F., Galli, M., Argan, A., Barbiellini, G., Basset, M., Boffelli, F., Bulgarelli, A., Caraveo, P., Cattaneo, P. W., Chen, A., Cocco, V., Costa, E., D'Ammando, F., Del Monte, E., De Paris, G., Di Cocco, G., Di Persio, G., Donnarumma, I., Evangelista, Y., Feroci, M., Ferrari, A., Fiorini, M., Foggetta, L., Froysland, T., Frutti, M., Gianotti, F., Giuliani, A., Lapshov, I., Lazzarotto, F., Liello, F., Lipari, P., Longo, F., Mastropietro, M., Mattaini, E., Mauri, A., Mauri, F., Mereghetti, S., Morelli, E., Morselli, A., Pacciani, L., Pellizzoni, A., Perotti, F., Picozza, P., Pontoni, C., Porrovecchio, G., Prest, M., Pucella, G., Rapisarda, M., Rappoldi, A., Rossi, E., Rubini, A., Soffitta, P., Tavani, M., Traci, A., Trifoglio, M., Trois, A., Vallazza, E., Vercellone, S., Vittorini, V., Zambra, A., Zanello, D., Pittori, C., Verrecchia, F., Cutini, S., Gasparrini, D., Preger, B., Santolamazza, P., Giommi, P., Antonelli, L. A., Colafrancesco, S., and Salotti, L. more...
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Astrophysics - Abstract
The Mini-Calorimeter (MCAL) instrument on-board the AGILE satellite is a non-imaging gamma-ray scintillation detector sensitive in the 300keV-100MeV energy range with a total on-axis geometrical area of 1400cm^2. Gamma-Ray Bursts (GRBs) are one of the main scientific targets of the AGILE mission and the MCAL design as an independent self-triggering detector makes it a valuable all-sky monitor for GRBs. Furthermore MCAL is one of the very few operative instruments with microsecond timing capabilities in the MeV range. In this paper the results of GRB detections with MCAL after one year of operation in space are presented and discussed. A flexible trigger logic implemented in the AGILE payload data-handling unit allows the on-board detection of GRBs. For triggered events, energy and timing information are sent to telemetry on a photon-by-photon basis, so that energy and time binning are limited by counting statistics only. When the trigger logic is not active, GRBs can be detected offline in ratemeter data, although with worse energy and time resolution. Between the end of June 2007 and June 2008 MCAL detected 51 GRBs, with a detection rate of about 1 GRB/week, plus several other events at a few milliseconds timescales. Since February 2008 the on-board trigger logic has been fully active. Comparison of MCAL detected events and data provided by other space instruments confirms the sensitivity and effective area estimations. MCAL also joined the 3rd Inter-Planetary Network, to contribute to GRB localization by means of triangulation., Comment: 6 pages, 7 figures, accepted for publication by A&A 13/08/2008 more...
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- 2008
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14. AGILE detection of variable gamma-ray activity from the blazar S5 0716+714 in September-October 2007
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Chen, A. W., D'Ammando, F., Villata, M., Raiteri, C. M., Tavani, M., Vittorini, V., Bulgarelli, A., Donnarumma, I., Ferrari, A., Giuliani, A., Longo, F., Pacciani, L., Pucella, G., Vercellone, S., Argan, A., Barbiellini, G., Boffelli, F., Caraveo, P., Carosati, D., Cattaneo, P. W., Cocco, V., Costa, E., Del Monte, E., De Paris, G., Di Cocco, G., Evangelista, Y., Feroci, M., Fiorini, M., Froysland, T., Frutti, M., Fuschino, F., Galli, M., Gianotti, F., Kurtanidze, O. M., Labanti, C., Lapshov, I., Larionov, V. M., Lazzarotto, F., Lipari, P., Marisaldi, M., Mastropietro, M., Mereghetti, S., Morelli, E., Morselli, A., Pasanen, M., Pellizzoni, A., Perotti, F., Picozza, P., Porrovecchio, G., Prest, M., Rapisarda, M., Rappoldi, A., Rubini, A., Soffitta, P., Trifoglio, M., Trois, A., Vallazza, E., Zambra, A., Zanello, D., Cutini, S., Gasparrini, D., Pittori, C., Santolamazza, P., Verrecchia, F., Giommi, P., Antonelli, L. A., Colafrancesco, S., and Salotti, L. more...
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Astrophysics - Abstract
We report the gamma-ray activity from the intermediate BL Lac S5 0716+714 during observations acquired by the AGILE satellite in September and October 2007. These detections of activity were contemporaneous with a period of intense optical activity, which was monitored by GASP-WEBT. This simultaneous optical and gamma-ray coverage allows us to study in detail the light curves, time lags, gamma-ray photon spectrum, and Spectral Energy Distributions (SEDs) during different states of activity. AGILE observed the source with its two co-aligned imagers, the Gamma-Ray Imaging Detector (GRID) and the hard X-ray imager (Super-AGILE), which are sensitive to the 30 MeV-50 GeV and 18-60 keV energy ranges, respectively. Observations were completed in two different periods, the first between 2007 September 4-23, and the second between 2007 October 24-November 1. Over the period 2007 September 7-12, AGILE detected gamma-ray emission from the source at a significance level of 9.6-sigma with an average flux (E>100 MeV) of (97 +/- 15) x 10^{-8} photons cm^{-2} s^{-1}, which increased by a factor of at least four within three days. No emission was detected by Super-AGILE for the energy range 18-60 keV to a 3-sigma upper limit of 10 mCrab in 335 ksec. In October 2007, AGILE repointed toward S5 0716+714 following an intense optical flare, measuring an average flux of (47 +/- 11) x 10^{-8} photons cm^{-2} s^{-1} at a significance level of 6.0-sigma. The gamma-ray flux of S5 0716+714 detected by AGILE is the highest ever detected for this blazar and one of the most intense gamma-ray fluxes detected from a BL Lac object. The SED of mid-September appears to be consistent with the synchrotron self-Compton (SSC) emission model, but only by including two SSC components of different variabilities., Comment: 5 pages, 5 figures, accepted by A&A Letters 18/8/2008 more...
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- 2008
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15. Science with the new generation high energy gamma- ray experiments
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Alvarez, M., D'Armiento, D., Agnetta, G., Alberdi, A., Antonelli, A., Argan, A., Assis, P., Baltz, E. A., Bambi, C., Barbiellini, G., Bartko, H., Basset, M., Bastieri, D., Belli, P., Benford, G., Bergstrom, L., Bernabei, R., Bertone, G., Biland, A., Biondo, B., Bocchino, F., Branchini, E., Brigida, M., Bringmann, T., Brogueira, P., Bulgarelli, A., Caballero, J. A., Caliandro, G. A., Camarri, P., Cappella, F., Caraveo, P., Carbone, R., Carvajal, M., Casanova, S., Castro-Tirado, A. J., Catalano, O., Catena, R., Celi, F., Celotti, A., Cerulli, R., Chen, A., Clay, R., Cocco, V., Conrad, J., Costa, E., Cuoco, A., Cusumano, G., Dai, C. J., Dawson, B., De Lotto, B., De Paris, G., Postigo, A. de Ugarte, Del Monte, E., Delgado, C., Di Ciaccio, A., Di Cocco, G., Di Falco, S., Di Persio, G., Dingus, B. L., Dominguez, A., Donato, F., Donnarumma, I., Doro, M., Edsjo, J., Navas, J. M. Espino, Santo, M. C. Espirito, Evangelista, Y., Evoli, C., Fargion, D., Favuzzi, C., Feroci, M., Fiorini, M., Foggetta, L., Fornengo, N., Froysland, T., Frutti, M., Fuschino, F., Gomez, J. L., Gomez, M., Gaggero, D., Galante, N., Gallardo, M. I., Galli, M., Garcia, J. E., Garczarczyk, M., Gargano, F., Gaug, M., Gianotti, F., Giarrusso, S., Giebels, B., Giglietto, N., Giommi, P., Giordano, F., Giuliani, A., Glicenstein, J., Goncalves, P., Grasso, D., Guerriero, M., He, H. L., Incicchitti, A., Kirk, J., Kuang, H. H., La Barbera, A., La Rosa, G., Labanti, C., Lamanna, G., Lapshov, I., Lazzarotto, F., Liberati, S., Liello, F., Lipari, P., Longo, F., Loparco, F., Lozano, M., De Sanctis, P. G. Lucentini, Ma, J. M., Maccarone, M. C., Maccione, L., Malvezzi, V., Mangano, A., Mariotti, M., Marisaldi, M., Martel, I., Masiero, A., Massaro, E., Mastropietro, M., Mattaini, E., Mauri, F., Mazziotta, M. N., Mereghetti, S., Mineo, T., Mizobuchi, S., Moiseev, A., Moles, M., Monte, C., Montecchia, F., Morelli, E., Morselli, A., Moskalenko, I., Nozzoli, F., Ormes, J. F., Peres-Torres, M. A., Pacciani, L., Pellizzoni, A., Perez-Bernal, F., Perotti, F., Picozza, P., Pieri, L., Pietroni, M., Pimenta, M., Pina, A., Pittori, C., Pontoni, C., Porrovecchio, G., Prada, F., Prest, M., Prosperi, D., Protheroe, R., Pucella, G., Quesada, J. M., Quintana, J. M., Quintero, J. R., Raino, S., Rapisarda, M., Rissi, M., Rodriguez, J., Rossi, E., Rowell, G., Rubini, A., Russo, F., Sanchez-Conde, M., Sacco, B., Scapin, V., Schelke, M., Segreto, A., Sellerholm, A., Sheng, X. D., Smith, A., Soffitta, P., Sparvoli, R., Spinelli, P., Stamatescu, V., Stark, L. S., Tavani, M., Thornton, G., Titarchuk, L. G., Tome, B., Traci, A., Trifoglio, M., Trois, A., Vallania, P., Vallazza, E., Vercellone, S., Vernetto, S., Vitale, V., Wild, N., Ye, Z. P., Zambra, A., Zandanel, F., and Zanello, D. more...
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Astrophysics ,General Relativity and Quantum Cosmology ,High Energy Physics - Phenomenology ,Physics - Space Physics - Abstract
This Conference is the fifth of a series of Workshops on High Energy Gamma- ray Experiments, following the Conferences held in Perugia 2003, Bari 2004, Cividale del Friuli 2005, Elba Island 2006. This year the focus was on the use of gamma-ray to study the Dark Matter component of the Universe, the origin and propagation of Cosmic Rays, Extra Large Spatial Dimensions and Tests of Lorentz Invariance., Comment: 328 pages, 7.8Mb, Proceedings of the 5th SCINEGHE Workshop, June 18-20, 2007 http://www.roma2.infn.it/SciNeGHE07/ more...
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- 2007
16. SuperAGILE: the hard X-ray Imager for the AGILE space mission
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Feroci, M., Costa, E., Soffitta, P., Del Monte, E., Di Persio, G., Donnarumma, I., Evangelista, Y., Frutti, M., Lapshov, I., Lazzarotto, F., Mastropietro, M., Morelli, E., Pacciani, L., Porrovecchio, G., Rapisarda, M., Rubini, A., Tavani, M., and Argan, A. more...
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Astrophysics - Abstract
SuperAGILE is a coded mask experiment based on silicon microstrip detectors. It operates in the 15-45 keV nominal energy range, providing crossed one-dimensional images of the X-ray sky with an on-axis angular resolution of 6 arcmin, over a field of view in excess of 1 steradian. It was designed as the hard X-ray monitor of the AGILE space mission, a small satellite of the Italian Space Agency devoted to image the gamma-ray sky in the 30 MeV - 50 GeV energy band. The AGILE mission was launched in a low-earth orbit on 23^{rd} April 2007. In this paper we describe the SuperAGILE experiment, its construction and test processes, and its performance before flight, based on the on-ground test and calibrations., Comment: Nucl. Instr. and Meth. A, in press. Full version with figures included in the text, now available at: ftp://vesta.rm.iasf.cnr.it/pub/mferoci/ It will also be linked at the official AGILE web pages more...
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- 2007
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17. Scientific performances of the XAA1.2 front-end chip for silicon microstrip detectors
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Del Monte, E., Soffitta, P., Morelli, E., Pacciani, L., Porrovecchio, G., Rubini, A., Uberti, O., Costa, E., Di Persio, G., Donnarumma, I., Evangelista, Y., Feroci, M., Lazzarotto, F., Mastropietro, M., and Rapisarda, M. more...
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Astrophysics ,Physics - Instrumentation and Detectors - Abstract
The XAA1.2 is a custom ASIC chip for silicon microstrip detectors adapted by Ideas for the SuperAGILE instrument on board the AGILE space mission. The chip is equipped with 128 input channels, each one containing a charge preamplifier, shaper, peak detector and stretcher. The most important features of the ASIC are the extended linearity, low noise and low power consumption. The XAA1.2 underwent extensive laboratory testing in order to study its commandability and functionality and evaluate its scientific performances. In this paper we describe the XAA1.2 features, report the laboratory measurements and discuss the results emphasizing the scientific performances in the context of the SuperAGILE front-end electronics., Comment: 30 pages, 19 figures, accepted for publication by Nuclear Inst. and Methods in Physics Research A more...
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- 2006
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18. A study to develop a robust method for measuring the detection efficiency of free-running InGaAs/InP single-photon detectors
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López, M., Meda, A., Porrovecchio, G., Starkwood (Kirkwood), R. A., Genovese, M., Brida, G., Šmid, M., Chunnilall, C. J., Degiovanni, I. P., and Kück, S.
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- 2020
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19. Intercomparison of bidirectional reflectance distribution function measurements at in- and out-of-plane geometries
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European Metrology Research Programme, European Commission, Basic, N., Molloy, E., Koo, A., Ferrero, Alejandro, Santafé, Pablo, Gevaux, L., Porrovecchio, G., Schirmacher, A., Šmíd, M., Blattner, P., Hauer, K.-O., Quast, T., Campos Acosta, Joaquín, Obein, G., European Metrology Research Programme, European Commission, Basic, N., Molloy, E., Koo, A., Ferrero, Alejandro, Santafé, Pablo, Gevaux, L., Porrovecchio, G., Schirmacher, A., Šmíd, M., Blattner, P., Hauer, K.-O., Quast, T., Campos Acosta, Joaquín, and Obein, G. more...
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In recent years, there has been a growing interest in the measurements of the bidirectional reflectance distribution function (BRDF) in industry and research and development. However, there is currently no dedicated key comparison to demonstrate the scale conformity. To date, scale conformity has been proved only for classical in-plane geometries, in comparisons between different national metrology institutes (NMIs) and designated institutes (DIs). This study aims at expanding that with nonclassical geometries, including, for the first time, to the best of our knowledge, two out-of-plane geometries. A total of four NMIs and two DIs participated in a scale comparison of the BRDF measurements of three achromatic samples at 550 nm in five measurement geometries. The realization of the scale of BRDF is a well-understood procedure, as explained in this paper, but the comparison of the measured values presents slight inconsistencies in some geometries, most likely due to the underestimation of measurement uncertainties. This underestimation was revealed and indirectly quantified using the Mandel-Paule method, which provides the interlaboratory uncertainty. The results from the presented comparison allow the present state of the BRDF scale realization to be evaluated, not only for classical in-plane geometries, but also for out-of-plane geometries. more...
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- 2023
20. Intercomparison of bidirectional reflectance distribution function measurements at in- and out-of-plane geometries
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Basic, N., primary, Molloy, E., additional, Koo, A., additional, Ferrero, A., additional, Santafé Gabarda, P., additional, Gevaux, L., additional, Porrovecchio, G., additional, Schirmacher, A., additional, Šmíd, M., additional, Blattner, P., additional, Hauer, K.-O., additional, Quast, T., additional, Campos, J., additional, and Obein, G., additional more...
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- 2023
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21. Long-term spectral responsivity stability of predictable quantum efficient detectors
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Porrovecchio, G., Linke, U., Smid, M., Gran, J., Ikonen, E., Werner, L., Czech Metrology Institute, Physikalisch-Technische Bundesanstalt, Justervesenet, Dept Signal Process and Acoust, Aalto-yliopisto, and Aalto University more...
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photometry ,General Engineering ,predictable quantum efficient detector ,radiometry - Abstract
Funding Information: The authors of PTB are grateful to Ingmar Müller who designed, set up and characterized the PQEDs calibrated by PTB and to Uwe Johannsen who set up and improved the cryogenic radiometer calibration facility of PTB. The research leading to these results has received funding from the European Community’s Seventh Framework Programme, ERA-NET Plus, under Grant Agreement No. 217257, from the European Metrology Research Programme (EMRP) Project SIB57 ‘New Primary Standards and Traceability for Radiometry’ and from the project 18SIB10 chipS.CALe (EMPIR). The EMRP is jointly funded by the EMRP participating countries within EURAMET and the European Union. The EMPIR programme is co-financed by the Participating States and from the European Union’s Horizon 2020 research and innovation programme. EI acknowledges the support by the Academy of Finland Flagship Programme, Photonics Research and Innovation (PREIN), decision number: 320167. Publisher Copyright: © 2022 BIPM & IOP Publishing Ltd. The stability of induced junction silicon photodiodes used to construct the predictable quantum efficient detector (PQED) has been studied over a time period of a decade by measurements of its spectral responsivity against absolute cryogenic radiometers (CR) in two independent laboratories at CMI and PTB. PQEDs operated at room temperature show a long-term temporal stability within 150 ppm over a broad spectral range during a 10-year period, well within the range of the claimed measurement uncertainty values of the CRs. This long term stability fulfills one of the fundamental requirements to establish a new primary standard for the measurement of power of optical radiation. more...
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- 2022
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22. GAMMA-RAY ASTROPHYSICS WITH AGILE
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LONGO, F., ARGAN, A., BARBIELLINI, G., BASSET, M., BOFFELLI, F., BULGARELLI, A., CARAVEO, P., CATTANEO, P. W., CELESTI, E., CHEN, A., COCCO, V., COSTA, E., MONTE, E. DEL, COCCO, G. DI, PERSIO, G. DI, DONNARUMMA, I., FEROCI, M., FIORINI, M., FROYSLAND, T., FRUTTI, M., GALLI, M., GIANOTTI, F., GIULIANI, A., LABANTI, C., LAPSHOV, I., LAZZAROTTO, F., LIELLO, F., LIPARI, P., MARISALDI, M., MASTROPIETRO, M., MAURI, A., MAURI, F., MEREGHETTI, S., MORELLI, E., MORSELLI, A., PACCIANI, L., PELLIZZONI, A., PEROTTI, F., PICOZZA, P., PITTORI, F., PONTONI, C., PORROVECCHIO, G., PREST, M., RAPISARDA, M., ROSSI, E., RUBINI, A., SOFFITTA, P., TAVANI, M., TRACI, A., TRIFOGLIO, M., VALLAZZA, E., VERCELLONE, S., ZANELLO, D., SIDHARTH, B.G., editor, HONSELL, F., editor, and DE ANGELIS, A., editor more...
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- 2006
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23. First results about on-ground calibration of the silicon tracker for the AGILE satellite
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Cattaneo, P.W., Argan, A., Boffelli, F., Bulgarelli, A., Buonomo, B., Chen, A.W., D’Ammando, F., Froysland, T., Fuschino, F., Galli, M., Gianotti, F., Giuliani, A., Longo, F., Marisaldi, M., Mazzitelli, G., Pellizzoni, A., Prest, M., Pucella, G., Quintieri, L., Rappoldi, A., Tavani, M., Trifoglio, M., Trois, A., Valente, P., Vallazza, E., Vercellone, S., Zambra, A., Barbiellini, G., Caraveo, P., Cocco, V., Costa, E., De Paris, G., Del Monte, E., Di Cocco, G., Donnarumma, I., Evangelista, Y., Feroci, M., Ferrari, A., Fiorini, M., Labanti, C., Lapshov, I., Lazzarotto, F., Lipari, P., Mastropietro, M., Mereghetti, S., Morelli, E., Moretti, E., Morselli, A., Pacciani, L., Perotti, F., Piano, G., Picozza, P., Pilia, M., Porrovecchio, G., Rapisarda, M., Rubini, A., Sabatini, S., Soffitta, P., Striani, E., Vittorini, V., Zanello, D., Colafrancesco, S., Giommi, P., Pittori, C., Santolamazza, P., Verrecchia, F., and Salotti, L. more...
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- 2011
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24. Preliminary results on TeV sources search with AGILE
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Rappoldi, A., Longo, F., Argan, A., Barbiellini, G., Boffelli, F., Bulgarelli, A., Caraveo, P., Cattaneo, P.W., Chen, A.W., Cocco, V., Colafrancesco, S., Costa, E., D’ Ammando, F., De Paris, G., Del Monte, E., Di Cocco, G., Donnarumma, I., Evangelista, Y., Ferrari, A., Feroci, M., Fiorini, M., Froysland, T., Fuschino, F., Galli, M., Gianotti, F., Giommi, P., Giuliani, A., Labanti, C., Lapshov, I., Lazzarotto, F., Lipari, P., Marisaldi, M., Mastropietro, M., Mereghetti, S., Morelli, E., Moretti, E., Morselli, A., Pacciani, L., Pellizzoni, A., Perotti, F., Piano, G., Picozza, P., Pilia, M., Pittori, C., Porrovecchio, G., Prest, M., Pucella, G., Rapisarda, M., Rubini, A., Sabatini, S., Salotti, L., Santolamazza, P., Soffitta, P., Striani, E., Tavani, M., Trifoglio, M., Trois, A., Vallazza, E., Verrecchia, F., Vercellone, S., Vittorini, V., Zambra, A., and Zanello, D. more...
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- 2011
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25. UNFILTERED TRAP-BASED PHOTOMETER CALIBRATION
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Kliment, P., primary, Šmíd, M., additional, and Porrovecchio, G., additional
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- 2021
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26. The AGILE space mission
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Tavani, M., Barbiellini, G., Argan, A., Bulgarelli, A., Caraveo, P., Chen, A., Cocco, V., Costa, E., De Paris, G., Del Monte, E., Di Cocco, G., Donnarumma, I., Feroci, M., Fiorini, M., Froysland, T., Fuschino, F., Galli, M., Gianotti, F., Giuliani, A., Evangelista, Y., Labanti, C., Lapshov, I., Lazzarotto, F., Lipari, P., Longo, F., Marisaldi, M., Mastropietro, M., Mauri, F., Mereghetti, S., Morelli, E., Morselli, A., Pacciani, L., Pellizzoni, A., Perotti, F., Picozza, P., Pontoni, C., Porrovecchio, G., Prest, M., Pucella, G., Rapisarda, M., Rossi, E., Rubini, A., Soffitta, P., Trifoglio, M., Trois, A., Vallazza, E., Vercellone, S., Zambra, A., Zanello, D., Giommi, P., Antonelli, A., and Pittori, C. more...
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- 2008
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27. Preliminary measurement scales for sparkle and graininess
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Ministerio de Ciencia, Innovación y Universidades (España), European Commission, Ferrero, Alejandro, Perales, E., Basic, N., Pastuschek, M., Porrovecchio, G., Schirmacher, A., Velázquez, J.L., Campos Acosta, Joaquín, Martínez-Verdú, F.M., Šmid, M., Linduska, P., Dauser, T., Blattner, P., Ministerio de Ciencia, Innovación y Universidades (España), European Commission, Ferrero, Alejandro, Perales, E., Basic, N., Pastuschek, M., Porrovecchio, G., Schirmacher, A., Velázquez, J.L., Campos Acosta, Joaquín, Martínez-Verdú, F.M., Šmid, M., Linduska, P., Dauser, T., and Blattner, P. more...
- Abstract
Large effect pigments, widely used in various fields of industrial applications, produce characteristic visual textures known as sparkle and graininess, which need to be quantified by objective or subjective methods. The development of preliminary measurement scales for sparkle and graininess, whose recommendation is now under discussion in the International Commission on Illumination (CIE), is described in this article. These scales are absolute, linear and traceable to standards of optical radiation metrology. The main purpose of this article is to justify the convenience of adopting these preliminary measurements scales, showing clear evidence that they correlate well with subjective evaluations. Before standardization, these scales need to be validated with more experimental data, including different specimens and experimental systems from other research groups. more...
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- 2021
28. An X-ray imager based on silicon microstrip detector and coded mask
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Del Monte, E., Costa, E., Di Persio, G., Donnarumma, I., Evangelista, Y., Feroci, M., Frutti, M., Lapshov, I., Lazzarotto, F., Mastropietro, M., Morelli, E., Pacciani, L., Porrovecchio, G., Rapisarda, M., Rubini, A., Soffitta, P., Tavani, M., and Argan, A. more...
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- 2007
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29. Preliminary measurement scales for sparkle and graininess
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Ferrero, A., primary, Perales, E., additional, Basic, N., additional, Pastuschek, M., additional, Porrovecchio, G., additional, Schirmacher, A., additional, Velázquez, J. L., additional, Campos, J., additional, Martínez-Verdú, F. M., additional, Šmid, M., additional, Linduska, P., additional, Dauser, T., additional, and Blattner, P., additional more...
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- 2021
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30. An insight into the present capabilities of national metrology institutes for measuring sparkle
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Ferrero, A, primary, Basic, N, additional, Campos, J, additional, Pastuschek, M, additional, Perales, E, additional, Porrovecchio, G, additional, Šmid, M, additional, Schirmacher, A, additional, Velázquez, J L, additional, and Martínez-Verdú, F M, additional more...
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- 2020
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31. Testing sparkle measurement capabilities of National Metrology Institutes
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Ferrero, Alejandro, Basic, N., Campos Acosta, Joaquín, Pastuschek, M.A., Perales, E., Porrovecchio, G., Quast, T., Šmid, M., Schirmacher A., Velázquez, J.L., and Martínez-Verdú, F.M.
- Abstract
CIE 2019, Washington DC, June 14 to 22, 2019. -- http://washington2019.cie.co.at
- Published
- 2019
32. An insight into the present capabilities of national metrology institutes for measuring sparkle
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European Commission, Comunidad de Madrid, Ferrero, Alejandro, Basic, N., Campos Acosta, Joaquín, Pastuschek, M., Perales, E., Porrovecchio, G., Šmid, M., Schirmacher, A., Velázquez, J.L., Martínez-Verdú, F.M., European Commission, Comunidad de Madrid, Ferrero, Alejandro, Basic, N., Campos Acosta, Joaquín, Pastuschek, M., Perales, E., Porrovecchio, G., Šmid, M., Schirmacher, A., Velázquez, J.L., and Martínez-Verdú, F.M. more...
- Abstract
Large-effect pigments, due to their strongly specular reflectance, produce a special visual texture known as sparkle. The use of these pigments in many industries (automotive, cosmetic, paper, architecture...) makes the control of this visual texture necessary. Sparkle measurands have been defined in this article, so that traceability of sparkle measurements can be provided by national metrology institutes or designated institutes. Some of them (Physikalisch-Technische Bundesanstalt, Eidgenössisches Institut für Metrologie, Cesky Metrologicky Institut and Consejo Superior de Investigaciones Científicas) have tested their existing measurement capabilities for the defined sparkle measurands, and their results are presented and thoroughly compared. Two possible sources of systematic error have been identified: inadequate illumination and collection solid angles, and an inadequate size of the virtual aperture used to assess the luminous flux reflected by the effect pigments. Finally, it has been shown that the measures correlate excellently with the sparkle visual data. The results shown in this research support the sparkle measurands defined here as adequate quantities for defining the standard measurement scale of sparkle claimed by industry. more...
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- 2020
33. The science of AGILE: part II
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Pittori, C., Tavani, M., Barbiellini, G., Argan, A., Auricchio, N., Bulgarelli, A., Caraveo, P., Celesti, E., Chen, A., Cocco, V., Costa, E., Del Monte, E., Di Cocco, G., Fedel, G., Feroci, M., Fiorini, M., Froysland, T., Galli, M., Gianotti, F., Giuliani, A., Labanti, C., Lapshov, I., Lazzarotto, F., Lipari, P., Longo, F., Mattaini, E., Mereghetti, S., Morelli, E., Morselli, A., Pacciani, L., Pellizzoni, A., Perotti, F., Picozza, P., Pontoni, C., Porrovecchio, G., Preger, B., Prest, M., Rapisarda, M., Rossi, E., Rubini, A., Soffitta, P., Trifoglio, M., Vallazza, E., Vercellone, S., and Zanello, D. more...
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- 2002
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34. The science of AGILE: part I
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Cocco, V., Tavani, M., Barbiellini, G., Argan, A., Auricchio, N., Bulgarelli, A., Caraveo, P., Celesti, E., Chen, A., Costa, E., Del Monte, E., Di Cocco, G., Fedel, G., Feroci, M., Fiorini, M., Froysland, T., Galli, M., Gianotti, F., Giuliani, A., Labanti, C., Lapshov, I., Lazzarotto, F., Lipari, P., Longo, F., Mattaini, E., Mereghetti, S., Morelli, E., Morselli, A., Pacciani, L., Pellizzoni, A., Perotti, F., Picozza, P., Pittori, C., Pontoni, C., Porrovecchio, G., Preger, B., Prest, M., Rapisarda, M., Rossi, E., Rubini, A., Soffitta, P., Trifoglio, M., Vallazza, E., Vercellone, S., and Zanello, D. more...
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- 2002
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35. A charge integrator amplifier and trap detector for pico-joule laser pulse energy measurement
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White, M G, primary, Porrovecchio, G, additional, Livigni, D, additional, Leonhardt, R, additional, and Smid, M, additional
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- 2018
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36. Characterization of a room temperature predictable quantum efficient detector for applications in radiometry and photometry
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Salffner, K, primary, Dönsberg, T, additional, Porrovecchio, G, additional, Smid, M, additional, Nield, K, additional, and Nevas, S, additional
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- 2018
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37. Liquid nitrogen cryostat for predictable quantum efficient detectors
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Manoocheri, F, primary, Dönsberg, T, additional, Sildoja, M, additional, Smíd, M, additional, Porrovecchio, G, additional, and Ikonen, E, additional
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- 2018
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38. Impact of surface curvature on spectral BRDF of effect coatings
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Ferrero, Alejandro, Bernad, Berta, Campos Acosta, Joaquín, Perales, E., Martínez-Verdú, F.M., Smid, M., Porrovecchio, G., and Strothkämper, C.
- Abstract
4th CIE Expert Symposium on Colour and Visual Appearance, Prague, Czech Republic, September 6 - 7, 2016, The development of effect pigments (or flake pigments) by industry has allowed new eyecatching visual effect for products. Unlike the traditional absorption pigments, they generate colour perceptions extremely angle dependent, which are function of both the illumination and observation directions. As a consequence of their appealing appearance, the market of effect pigments is steadily increasing and has become very popular in automotive, cosmetics, coatings, packaging, printing inks, ceramic tiles, building materials, textile, etc. Effect pigments known as metallic pigments consist of a metal or an alloy of metal and their optical properties are described essentially by geometrical optics. They display a metallic effect which is mainly due to the specular reflection at the surface of these pigments. When embedded in a material or binder, called hereafter effect coating, the effect is determined by the optical properties of pigments and material and by the pigments orientation in the material. In this case, due to the non-perfectly horizontal inclination of the flakes in the binder, the effect can be observed for directions close to the specular directions. Since this effect is mostly observable around specular directions, it must present variations in appreciable extent when the coating is applied on a curved surface, for which specular reflection is dimmed. In the context of the EMRP Project ¿Multidimensional reflectometry for industry¿ (xDReflect), we applied the same effect coating with metallic pigments to three surfaces of different convex curvatures, with curvature radii of infinity (flat), 300 mm (moderately curved) and 150 mm (very curved), and their spectral BRDF was measured at different illumination and observation directions, both in and out of the incidence plane. The measurements of the spectral BRDF of the three surfaces with the same effect coating will be presented and discussed in this contribution. They were performed with the goniospectrophotometer GEFE at IO-CSIC. For normal illumination, the samples are illuminated with a uniform spot of 3 cm in diameter, but the measurement area is only of 7 mm in diameter. The apparent dimensions change for different geometries. The half-angle of the solid angles of illumination and detection was around 0.5º. We found that, at specular directions, the higher the curvature of the sample the lower the spectrally-averaged BRDF, and that, around the specular directions, the higher the curvature the higher the spectrally-averaged BRDF. Both observations were expected as a result of the divergence introduced by the curvature in the reflection at the first surface (convolution by curvature). In terms of colour, it can be interpreted as a ¿lightness flop¿ between curved and flat samples, being lighter the flat sample at specular directions and the curved samples around the specular directions. But, in addition, we have found another effect of curvature, which is not spectrally neutral and hardly can be explained by simple convolution. It is observed at some in-plane geometries with high incidence angles, and it can be described as an increase of the spectrally-averaged BRDF and a variation in the spectral distribution when comparing flat and curved samples. We may say here that there is ¿colour flop¿ between samples. This suggests a different contribution of the effect pigments to the spectral BRDF at those geometries for flat and curved samples. In these cases, the colour of the curved simple. more...
- Published
- 2016
39. European Coordinated Metrological Effort for Quantum-Cryptography.
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Gramegna, M., Berchera, I. Ruo, Kueck, S., Porrovecchio, G., Chunnilall, C. J., Degiovanni, I. P., Lopez, M., Kirkwood, R. A., Kübarsepp, T., Pokatilov, A., Castagna, N., Morel, J., Manoocheri, F., and Vaigu, A. more...
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- 2018
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40. Single-photon sources for quantum technologies - Results of the joint research project SIQUTE
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Kück, S., López, M., Rodiek, B., Hofer, H., Porrovecchio, G., Šmid, M., Brida, G., Traina, P., Degiovanni, I. P., Pokatilov, A., Kübarsepp, T., Manninen, A., Vaigu, A., Chunnilall, C., Szwer, D., Polyakov, S., Claudon, J., Gregersen, Niels, Mørk, Jesper, Chu, X-L., Götzinger, S., Lindner, S., Bock, M., Becher, C., Reitzenstein, S., Kück, S., López, M., Rodiek, B., Hofer, H., Porrovecchio, G., Šmid, M., Brida, G., Traina, P., Degiovanni, I. P., Pokatilov, A., Kübarsepp, T., Manninen, A., Vaigu, A., Chunnilall, C., Szwer, D., Polyakov, S., Claudon, J., Gregersen, Niels, Mørk, Jesper, Chu, X-L., Götzinger, S., Lindner, S., Bock, M., Becher, C., and Reitzenstein, S. more...
- Abstract
In this presentation, the results of the joint research project “Single-Photon Sources for Quantum Technologies” (SIQUTE) [1] will be presented. The focus will be on the development of absolutely characterized single-photon sources, on the realization of an efficient waveguide-based single-photon source at the telecom wavelengths of 1.3 µm and 1.55 µm, on the implementation of the quantum-enhanced resolution in confocal fluorescence microscopy and on the development of a detector for very low photon fluxes more...
- Published
- 2017
41. Characterization of a tagged gamma-ray beam line at the DA Phi NE Beam Test Facility
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Cattaneo, P. W., Argan, A., Boffelli, F., Bulgarelli, A., Buonomo, B., Chen, A. W., D'Ammando, F., Foggetta, L., Froysland, T., Fuschino, F., Galli, M., Gianotti, F., Giuliani, A., Longo, F., Marisaldi, M., Mazzitelli, G., Pellizzoni, A., Prest, Michela, Pucella, G., Quintieri, L., Rappoldi, A., Tavani, M., Trifoglio, M., Trois, A., Valente, P., Vallazza, E., Vercellone, S., Zambra, A., Barbiellini, G., Caraveo, P., Cocco, V., Costa, E., De Paris, G., Del Monte, E., Di Cocco, G., Donnarumma, I., Evangelista, Y., Feroci, M., Ferrari, A., Fiorini, M., Labanti, C., Lapshov, I., Lazzarotto, F., Lipari, P., Mastropietro, M., Mereghetti, S., Morelli, E., Moretti, E., Morselli, A., Pacciani, L., Perotti, F., Piano, G., Picozza, P., Pilia, M., Porrovecchio, G., Rapisarda, M., Rubini, A., Sabatini, S., Soffitta, P., Striani, E., Vittorini, V., Zanello, D., Colafrancesco, S., Giommi, P., Pittori, C., Santolamazza, P., Verrecchia, F., Salotti, L., Cattaneo PW, Argan A, Boffelli F, Bulgarelli A, Buonomo B, Chen AW, DAmmando F, Foggetta L, Froysland T, Fuschino F, Galli M, Gianotti F, Giuliani A, Longo F, Marisaldi M, Mazzitelli G, Pellizzoni A, Prest M, Pucella G, Quintieri L, Rappoldi A, Tavani M, Trifoglio M, Trois A, Valente P, Vallazza E, Vercellone S, Zambra A, Barbiellini G, Caraveo P, Cocco V, Costa E, De Paris G, Del Monte E, Di Cocco G, Donnarumma I, Evangelista Y, Feroci M, Ferrari A, Fiorini M, Labanti C, Lapshov I, Lazzarotto F, Lipari P, Mastropietro M, Mereghetti S, Morelli E, Moretti E, Morselli A, Pacciani L, Perotti F, Piano G, Picozza P, Pilia M, Porrovecchio G, Rapisarda M, Rubini A, Sabatini S, Soffitta P, Striani E, Vittorini V, Zanello D, Colafrancesco S, Giommi P, Pittori C, Santolamazza P, Verrecchia F, and Salotti L more...
- Subjects
photon tagged beam ,Gamma Ray Imaging Detector ,Physics::Instrumentation and Detectors ,Astrophysics::High Energy Astrophysical Phenomena ,AGILE satellite ,Electron and positron beam ,Photon beam ,silicon tracker ,Beam Test Facility ,bremsstrahlung ,Position-sensitive detector - Abstract
At the core of the AGILE scientific instrument, designed to operate on a satellite, there is the Gamma Ray Imaging Detector (GRID) consisting of a Silicon Tracker (ST), a Cesium Iodide Mini-Calorimeter and an Anti-Coincidence system of plastic scintillator bars. The ST needs an on-ground calibration with a gamma-ray beam to validate the simulation used to calculate the energy response function and the effective area versus the energy and the direction of the gamma rays. A tagged gamma-ray beam line was designed at the Beam Test Facility (BTF) of the INFN Laboratori Nazionali of Frascati (LNF), based on an electron beam generating gamma-rays through bremsstrahlung in a position-sensitive target. The gamma-ray energy is deduced by difference with the post-bremsstrahlung electron energy [1,2]. The electron energy is measured by a spectrometer consisting of a dipole magnet and an array of position sensitive silicon strip detectors, the Photon Tagging System (PTS). The use of the combined BTF-FTS system as tagged photon beam requires understanding the efficiency of gamma-ray tagging, the probability of fake tagging, the energy resolution andthe relation of the PTS hit position versus the gamma-ray energy. This paper describes this study comparing data taken during the AGILE calibration occurred in 2005 with simulation. (C) 2012 Elsevier B.V. All rights reserved. more...
- Published
- 2012
42. The AGILE Mission
- Author
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Tavani M, Barbiellini G, Argan A, Boffelli F, Bulgarelli A, Caraveo P, Cattaneo PW, Chen AW, Cocco V, Costa E, Del Monte E, De Paris G, Di Cocco G, Di Persio G, Donnarumma I, Evangelista Y, Feroci M, Ferrari A, Fiorini M, Fornari F, Fuschino F, Froysland T, Frutti M, Galli M, Gianotti F, Giuliani A, Labanti C, Lapshov I, Lazzarotto F, Liello F, Lipari P, Longo F, Mattaini E, Marisaldi M, Mastropietro M, Mauri A, Mauri F, Mereghetti S, Morelli E, Morselli A, Pacciani L, Pellizzoni A, Perotti F, Piano G, Picozza P, Pontoni C, Porrovecchio G, Prest M, Pucella G, Rapisarda M, Rappoldi A, Rossi E, Rubini A, Soffitta P, Traci A, Trifoglio M, Trois A, Vallazza E, Vercellone S, Vittorini V, Zambra A, Zanello D, Pittori C, Preger B, Santolamazza P, Verrecchia F, Giommi P, Colafrancesco S, Antonelli A, Cutini S, Gasparrini D, Stellato S, Fanari G, Primavera R, Tamburelli F, Viola F, Guarrera G, Salotti L, D'Amico F, Marchetti E, Crisconio M, Sabatini P, Annoni G, Alia S, Longoni A, Sanquerin R, Battilana M, Concari P, Dessimone E, Grossi R, Parise A, Monzani F, Artina E, Pavesi R, Marseguerra G, Nicolini L, Scandelli L, Soli L, Vettorello V, Zardetto E, Bonati A, Maltecca L, D'Alba E, Patane M, Babini G, Onorati F, Acquaroli L, Angelucci M, Morelli B, Agostara C, Cerone M, Michetti A, Tempesta P, D'Eramo S, Rocca F, Giannini F, Borghi G, Garavelli B, Conte M, Balasini M, Ferrario I, Vanotti M, Collavo E, Giacomazzo M., D'AMMANDO, FILIPPO, M., Tavani, G., Barbiellini, A., Argan, F., Boffelli, A., Bulgarelli, P., Caraveo, P. W., Cattaneo, A. W., Chen, V., Cocco, E., Costa, F., D'Ammando, E. D., Monte, G. D., Pari, G. D., Cocco, G. D., Persio, I., Donnarumma, Y., Evangelista, M., Feroci, A., Ferrari, M., Fiorini, F., Fornari, F., Fuschino, T., Froysland, M., Frutti, M., Galli, F., Gianotti, A., Giuliani, C., Labanti, I., Lapshov, F., Lazzarotto, F., Liello, P., Lipari, Longo, Francesco, E., Mattaini, M., Marisaldi, M., Mastropietro, A., Mauri, F., Mauri, S., Mereghetti, E., Morelli, A., Morselli, L., Pacciani, A., Pellizzoni, F., Perotti, G., Piano, P., Picozza, C., Pontoni, G., Porrovecchio, M., Prest, G., Pucella, M., Rapisarda, A., Rappoldi, E., Rossi, A., Rubini, P., Soffitta, A., Traci, M., Trifoglio, A., Troi, E., Vallazza, S., Vercellone, V., Vittorini, A., Zambra, D., Zanello, C., Pittori, B., Preger, P., Santolamazza, F., Verrecchia, P., Giommi, S., Colafrancesco, A., Antonelli, S., Cutini, D., Gasparrini, S., Stellato, G., Fanari, R., Primavera, F., Tamburelli, F., Viola, G., Guarrera, L., Salotti, F., D'Amico, E., Marchetti, M., Crisconio, P., Sabatini, G., Annoni, S., Alia, A., Longoni, R., Sanquerin, M., Battilana, P., Concari, E., Dessimone, R., Grossi, A., Parise, F., Monzani, E., Artina, R., Pavesi, G., Marseguerra, L., Nicolini, L., Scandelli, L., Soli, V., Vettorello, E., Zardetto, A., Bonati, L., Maltecca, E., D'Alba, M., Patane, G., Babini, F., Onorati, L., Acquaroli, M., Angelucci, B., Morelli, C., Agostara, M., Cerone, A., Michetti, P., Tempesta, S., D'Eramo, F., Rocca, F., Giannini, G., Borghi, B., Garavelli, M., Conte, M., Balasini, I., Ferrario, M., Vanotti, E., Collavo, M., Giacomazzo, Tavani M, Barbiellini G, Argan A, Boffelli F, Bulgarelli A, Caraveo P, Cattaneo PW, Chen AW, Cocco V, Costa E, DAmmando F, Del Monte E, De Paris G, Di Cocco G, Di Persio G, Donnarumma I, Evangelista Y, Feroci M, Ferrari A, Fiorini M, Fornari F, Fuschino F, Froysland T, Frutti M, Galli M, Gianotti F, Giuliani A, Labanti C, Lapshov I, Lazzarotto F, Liello F, Lipari P, Longo F, Mattaini E, Marisaldi M, Mastropietro M, Mauri A, Mauri F, Mereghetti S, Morelli E, Morselli A, Pacciani L, Pellizzoni A, Perotti F, Piano G, Picozza P, Pontoni C, Porrovecchio G, Prest M, Pucella G, Rapisarda M, Rappoldi A, Rossi E, Rubini A, Soffitta P, Traci A, Trifoglio M, Trois A, Vallazza E, Vercellone S, Vittorini V, Zambra A, Zanello D, Pittori C, Preger B, Santolamazza P, Verrecchia F, Giommi P, Colafrancesco S, Antonelli A, Cutini S, Gasparrini D, Stellato S, Fanari G, Primavera R, Tamburelli F, Viola F, Guarrera G, Salotti L, D'Amico F, Marchetti E, Crisconio M, Sabatini P, Annoni G, Alia S, Longoni A, Sanquerin R, Battilana M, Concari P, Dessimone E, Grossi R, Parise A, Monzani F, Artina E, Pavesi R, Marseguerra G, Nicolini L, Scandelli L, Soli L, Vettorello V, Zardetto E, Bonati A, Maltecca L, D'Alba E, Patane M, Babini G, Onorati F, Acquaroli L, Angelucci M, Morelli B, Agostara C, Cerone M, Michetti A, Tempesta P, D'Eramo S, Rocca F, Giannini F, Borghi G, Garavelli B, Conte M, Balasini M, Ferrario I, Vanotti M, Collavo E, and Giacomazzo M more...
- Subjects
Agile ,Active galactic nucleus ,gamma and X ray detection ,Astrophysics::High Energy Astrophysical Phenomena ,media_common.quotation_subject ,satellite ,FOS: Physical sciences ,Astrophysics ,High Energy Gamma-ray Astronomy ,Pulsar ,astro-ph ,Angular resolution ,media_common ,Physics ,Calorimeter (particle physics) ,Astrophysics (astro-ph) ,Detector ,AGILE satellite ,Detectors ,Astronomy and Astrophysics ,Universe ,Supernova ,Space and Planetary Science ,Orbit (dynamics) ,instrumentation: detectors – techniques: high angular resolution – techniques: image processing – gamma rays: observations – X-rays: general - Abstract
AGILE is an Italian Space Agency mission dedicated to the observation of the gamma-ray Universe. The AGILE very innovative instrumentation combines for the first time a gamma-ray imager (sensitive in the energy range 30 MeV - 50 GeV), a hard X-ray imager (sensitive in the range 18-60 keV) together with a Calorimeter (sensitive in the range 300 keV - 100 MeV) and an anticoincidence system. AGILE was successfully launched on April 23, 2007 from the Indian base of Sriharikota and was inserted in an equatorial orbit with a very low particle background. AGILE provides crucial data for the study of Active Galactic Nuclei, Gamma-Ray Bursts, pulsars, unidentified gamma-ray sources, Galactic compact objects, supernova remnants, TeV sources, and fundamental physics by microsecond timing. An optimal angular resolution (reaching 0.1-0.2 degrees in gamma-rays, 1-2 arcminutes in hard X-rays) and very large fields of view (2.5 sr and 1 sr, respectively) are obtained by the use of Silicon detectors integrated in a very compact instrument. The paper describes the AGILE Mission and its space and ground segments., 20 pages, 26 figures. submitted to Astron. & Astrophys more...
- Published
- 2009
43. MULTIWAVELENGTH OBSERVATIONS OF A TeV-FLARE FROM W COMAE
- Author
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Veritas, Collaboration, Acciari, V. A., Aliu, E., Aune, T., Beilicke, M., Benbow, W., Bottcher, M., Boltuch, D., Buckley, J. H., Bradbury, S. M., Bugaev, V., Byrum, K., Cannon, A., Cesarini, A., Ciupik, L., Cogan, P., Cui, W., Dickherber, R., Duke, C., Falcone, A., Finley, J. P., Fortin, P., Fortson, L., Furniss, A., Galante, N., Gall, D., Gibbs, K., Gillanders, G. H., Grube, J., Guenette, R., Gyuk, G., Hanna, D., Holder, J., Hui, C. M., Humensky, T. B., Kaaret, P., Karlsson, N., Kertzman, M., Kieda, D., Konopelko, A., Krawczynski, H., Krennrich, F., Lang, M. J., Lebohec, S., Maier, G., Mcarthur, S., Mccann, A., Mccutcheon, M., Millis, J., Moriarty, P., Ong, R. A., Otte, A. N., Pandel, D., Perkins, J. S., Pichel, A., Pohl, M., Quinn, J., Ragan, K., Reyes, L. C., Reynolds, P. T., Roache, E., Rose, H. J., Sembroski, G. H., Smith, A. W., Steele, D., Theiling, M., Thibadeau, S., Varlotta, A., Vassiliev, V. V., Vincent, S., Wakely, S. P., Ward, J. E., Weekes, T. C., Weinstein, A., Weisgarber, T., Williams, D. A., Wissel, S., Wood, M., Agile, The Team, Pian, E., Vercellone, S., Donnarumma, I., D Ammando, F., Bulgarelli, A., Chen, A. W., Giuliani, A., Longo, F., Pacciani, L., Pucella, G., Vittorini, V., Tavani, M., Argan, A., Barbiellini, G., Caraveo, P., Cattaneo, P. W., Cocco, V., Costa, E., Del Monte, E., Paris, G., Di Cocco, G., Evangelista, Y., Feroci, M., Fiorini, M., Froysland, T., Frutti, M., Fuschino, F., Galli, M., Gianotti, F., Labanti, C., Lapshov, I., Lazzarotto, F., Lipari, P., Marisaldi, M., Mastropietro, M., Mereghetti, S., Morelli, E., Morselli, A., Pellizzoni, A., Perotti, F., Piano, G., Picozza, P., Pilia, M., Porrovecchio, G., Prest, M., Rapisarda, M., Rappoldi, A., Rubini, A., Soffitta, S. Sabatini P., Trifoglio, M., Trois, A., Vallazza, E., Zambra, A., Zanello, D., Pittori, C., Santolamazza, P., Verrecchia, F., Giommi, P., Colafrancesco, S., Salotti, L., Massimo Villata, Raiteri, C. M., Aller, H. D., Aller, M. F., Arkharov, A. A., Efimova, N. V., Larionov, V. M., Leto, P., Ligustri, R., Lindfors, E., Pasanen, M., Kurtanidze, O. M., Tetradze, S. D., Lahteenmaki, A., Kotiranta, M., Cucchiara, A., Romano, P., Nesci, R., Pursimo, T., Heidt, J., Benitez, E., Hiriart, D., Nilsson, K., Berdyugin, A., Mujica, R., Dultzin, D., Lopez, J. M., Mommert, M., Sorcia, M., La Calle Perez, I., V. A., Acciari, E., Aliu, T., Aune, M., Beilicke, W., Benbow, M., Bottcher, D., Boltuch, J. H., Buckley, S. M., Bradbury, V., Bugaev, K., Byrum, A., Cannon, A., Cesarini, L., Ciupik, P., Cogan, W., Cui, R., Dickherber, C., Duke, A., Falcone, J. P., Finley, P., Fortin, L., Fortson, A., Furni, N., Galante, D., Gall, K., Gibb, G. H., Gillander, J., Grube, R., Guenette, G., Gyuk, D., Hanna, J., Holder, C. M., Hui, T. B., Humensky, P., Kaaret, N., Karlsson, M., Kertzman, D., Kieda, A., Konopelko, H., Krawczynski, F., Krennrich, M. J., Lang, S., Lebohec, G., Maier, S., Mcarthur, A., Mccann, M., Mccutcheon, J., Milli, P., Moriarty, R. A., Ong, A. N., Otte, D., Pandel, J. S., Perkin, A., Pichel, M., Pohl, J., Quinn, K., Ragan, L. C., Reye, P. T., Reynold, E., Roache, H. J., Rose, G. H., Sembroski, A. W., Smith, D., Steele, M., Theiling, S., Thibadeau, A., Varlotta, V. V., Vassiliev, S., Vincent, S. P., Wakely, J. E., Ward, T. C., Weeke, A., Weinstein, T., Weisgarber, D. A., William, S., Wissel, M., Wood, E., Pian, S., Vercellone, I., Donnarumma, F., D'Ammando, A., Bulgarelli, A. W., Chen, A., Giuliani, Longo, Francesco, L., Pacciani, G., Pucella, V., Vittorini, M., Tavani, A., Argan, G., Barbiellini, P., Caraveo, P. W., Cattaneo, V., Cocco, E., Costa, E. D., Monte, G. D., Pari, G. D., Cocco, Y., Evangelista, M., Feroci, M., Fiorini, T., Froysland, M., Frutti, F., Fuschino, M., Galli, F., Gianotti, C., Labanti, I., Lapshov, F., Lazzarotto, P., Lipari, M., Marisaldi, M., Mastropietro, S., Mereghetti, E., Morelli, A., Morselli, A., Pellizzoni, F., Perotti, G., Piano, P., Picozza, M., Pilia, G., Porrovecchio, M., Prest, M., Rapisarda, A., Rappoldi, A., Rubini, S., Sabatini, P., Soffitta, M., Trifoglio, A., Troi, E., Vallazza, A., Zambra, D., Zanello, C., Pittori, P., Santolamazza, F., Verrecchia, P., Giommi, S., Colafrancesco, L., Salotti, M., Villata, C. M., Raiteri, H. D., Aller, M. F., Aller, A. A., Arkharov, N. V., Efimova, V. M., Larionov, P., Leto, R., Ligustri, E., Lindfor, M., Pasanen, O. M., Kurtanidze, S. D., Tetradze, A., Lahteenmaki, M., Kotiranta, A., Cucchiara, P., Romano, R., Nesci, T., Pursimo, J., Heidt, E., Benitez, D., Hiriart, K., Nilsson, A., Berdyugin, R., Mujica, D., Dultzin, J. M., Lopez, M., Mommert, M., Sorcia, I. D., Perez, Acciari VA, Aliu E, Aune T, Beilicke M, Benbow W, Bottcher M, Boltuch D, Buckley JH, Bradbury SM, Bugaev V, Byrum K, Cannon A, Cesarini A, Ciupik L, Cogan P, Cui W, Dickherber R, Duke C, Falcone A, Finley JP, Fortin P, Fortson L, Furniss A, Galante N, Gall D, Gibbs K, Gillanders GH, Grube J, Guenette R, Gyuk G, Hanna D, Holder J, Hui CM, Humensky TB, Kaaret P, Karlsson N, Kertzman M, Kieda D, Konopelko A, Krawczynski H, Krennrich F, Lang MJ, LeBohec S, Maier G, McArthur S, McCann A, McCutcheon M, Millis J, Moriarty P, Ong RA, Otte AN, Pandel D, Perkins JS, Pichel A, Pohl M, Quinn J, Ragan K, Reyes LC, Reynolds PT, Roache E, Rose HJ, Sembroski GH, Smith AW, Steele D, Theiling M, Thibadeau S, Varlotta A, Vassiliev VV, Vincent S, Wakely SP, Ward JE, Weekes TC, Weinstein A, Weisgarber T, Williams DA, Wissel S, Wood M, Pian E, Vercellone S, Donnarumma I, DAmmando F, Bulgarelli A, Chen AW, Giuliani A, Longo F, Pacciani L, Pucella G, Vittorini V, Tavani M, Argan A, Barbiellini G, Caraveo P, Cattaneo PW, Cocco V, Costa E, Del Monte E, De Paris G, Di Cocco G, Evangelista Y, Feroci M, Fiorini M, Froysland T, Frutti M, Fuschino F, Galli M, Gianotti F, Labanti C, Lapshov I, Lazzarotto F, Lipari P, Marisaldi M, Mastropietro M, Mereghetti S, Morelli E, Morselli A, Pellizzoni A, Perotti F, Piano G, Picozza P, Pilia M, Porrovecchio G, Prest M, Rapisarda M, Rappoldi A, Rubini A, Sabatini S, Soffitta P, Trifoglio M, Trois A, Vallazza E, Zambra A, Zanello D, Pittori C, Santolamazza P, Verrecchia F, Giommi P, Colafrancesco S, Salotti L, Villata M, Raiteri CM, Aller HD, Aller MF, Arkharov AA, Efimova NV, Larionov VM, Leto P, Ligustri R, Lindfors E, Pasanen M, Kurtanidze OM, Tetradze SD, Lahteenmaki A, Kotiranta M, Cucchiara A, Romano P, Nesci R, Pursimo T, Heidt J, Benitez E, Hiriart D, Nilsson K, Berdyugin A, Mujica R, Dultzin D, Lopez JM, Mommert M, Sorcia M, and Perez ID more...
- Subjects
Agile ,High energy ,agile space mission ,Astrophysics::High Energy Astrophysical Phenomena ,bl-lacertae objects ,FOS: Physical sciences ,Flux ,Astrophysics ,Astrophysics::Cosmology and Extragalactic Astrophysics ,telescope ,01 natural sciences ,High Energy Gamma-ray Astronomy ,blazar ,law.invention ,multiwavelength ,BL Lacertae ,law ,0103 physical sciences ,010303 astronomy & astrophysics ,High Energy Astrophysical Phenomena (astro-ph.HE) ,Physics ,010308 nuclear & particles physics ,Very High Energy Gamma-ray Astronomy ,AGILE satellite ,Active Galactic Nuclei ,Gamma ray ,background-radiation ,Astronomy and Astrophysics ,gamma-ray emission ,lac objects ,spectral energy-distributions ,veritas observations ,Space and Planetary Science ,source list ,Spectral energy distribution ,BL Lacertae objects: individual (W Com) ,Astrophysics - High Energy Astrophysical Phenomena ,gamma rays: observations ,Flare ,BL Lac object - Abstract
We report results from an intensive multiwavelength campaign on the intermediate-frequency-peaked BL Lacertae object W Com (z=0.102) during a strong outburst of very high energy gamma-ray emission in June 2008. The very high energy gamma-ray signal was detected by VERITAS on 2008 June 7-8 with a flux F(>200 GeV) = (5.7+-0.6)x10^-11 cm-2s-1, about three times brighter than during the discovery of gamma-ray emission from W Com by VERITAS in 2008 March. The initial detection of this flare by VERITAS at energies above 200 GeV was followed by observations in high energy gamma-rays (AGILE, E>100 MeV), and X-rays (Swift and XMM-Newton), and at UV, and ground-based optical and radio monitoring through the GASP-WEBT consortium and other observatories. Here we describe the multiwavelength data and derive the spectral energy distribution (SED) of the source from contemporaneous data taken throughout the flare., 26 pages, 5 figures; Accepted for publication by The Astrophysical Journal more...
- Published
- 2009
44. Gamma-ray Astrophysics with AGILE
- Author
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Longo, Francesco, Tavani, M., Barbiellini, G., Argan, A., Basset, M., Boffelli, F., Bulgarelli, A., Caraveo, P., Cattaneo, P., Chen, A., Costa, E., Del Monte, E., Di Cocco, G., Di Persio, G., Donnaruninia, I., Feroci, M., Fionini, M., Foggetta, L., Froysland, T., Frutti, M., Fuschino, F., Galli, M., Gianotti, F., Giuliani, A., Labanti, C., Lapshov, I., Lazzarotto, F., Liello, F., Lipari, P., Marisaldi, M., Mastropietro, M., Mattaini, E., Mauri, F., Mereghetti, S., Morelli, E., Morselli, A., Pacciani, L., Pellizzoni, A., Perotti, F., Picozza, P., Pittori, C., Pontoni, C., Porrovecchio, G., Prest, M., Rapisarda, M., Rossi, E., Rubini, A., Soffitta, P., Traci, A., Trifoglio, M., Trois, A., Erik Silvio Vallazza, Vercellone, S., Zarlello, D., Longo, Francesco, Tavani, M, BARBIELLINI AMIDEI, Guido, Argan, A, Basset, M, Boffelli, F, Bulgarelli, A, Caraveo, P, Cattaneo, P, Chen, A, Costa, E, DEL MONTE, E, DI COCCO, G, DI PERSIO, G, Donnarumma, I, Feroci, M, Fiorini, M, Foggetta, L, Froysland, T, Frutti, M, Fuschino, F, Galli, M, Gianotti, F, Giuliani, A, Labanti, C, Lapshov, I, Lazzarotto, F, Liello, F, Lipari, P, Marisaldi, M, Mastropietro, M, Mattaini, E, Mauri, F, Mereghetti, S, Morelli, E, Morselli, A, Pacciani, L, Pellizzoni, A, Perotti, F, Picozza, P, Pittori, C, Pontoni, C, Porrovecchio, G, Prest, M, Rapisarda, M, Rossi, E, Rubini, A, Soffitta, P, Traci, A, Trifoglio, M, Trois, A, Vallazza, E, Vercellone, S, Zanello, D., A., Argan, M., Basset, F., Boffelli, A., Bulgarelli, P., Caraveo, P. W., Cattaneo, E., Celesti, A., Chen, V., Cocco, E., Costa, E., DEL MONTE, G., DI COCCO, G., DI PERSIO, I., Donnarumma, M., Feroci, M., Fiorini, T., Froysland, M., Frutti, M., Galli, F., Gianotti, A., Giuliani, C., Labanti, I., Lapshov, F., Lazzarotto, F., Liello, P., Lipari, M., Marisaldi, M., Mastropietro, A., Mauri, F., Mauri, S., Mereghetti, E., Morelli, A., Morselli, L., Pacciani, A., Pellizzoni, F., Perotti, P., Picozza, C., Pittori, C., Pontoni, G., Porrovecchio, M., Prest, M., Rapisarda, E., Rossi, A., Rubini, P., Soffitta, M., Tavani, A., Traci, M., Trifoglio, E., Vallazza, S., Vercellone, and D., Zanello more...
- Subjects
AGILE satellite ,silicon tracker ,gamma ray astrophysics ,Physics ,Photon ,Active galactic nucleus ,Calorimeter (particle physics) ,business.industry ,Astrophysics::High Energy Astrophysical Phenomena ,media_common.quotation_subject ,Gamma ray ,Astronomy ,Astrophysics ,Galaxy ,Universe ,Supernova ,Sky ,business ,Gamma-ray burst ,Agile software development ,media_common - Abstract
AGILE will explore the gamma‐ray Universe with a very innovative instrument combining for the first time a gamma‐ray imager and a hard X‐ray imager. AGILE will be operational in spring 2007 and it will provide crucial data for the study of Active Galactic Nuclei, Gamma‐Ray Bursts, unidentified gamma‐ray sources. Galactic compact objects, supernova remnants, TeV sources, and fundamental physics by microsecond timing. The AGILE instrument is designed to simultaneously detect and image photons in the 30 MeV – 50 GeV and 15 – 45 keV energy bands with excellent imaging and timing capabilities, and a large field of view covering ∼ 1/5 of the entire sky at energies above 30 MeV. A CsI calorimeter is capable of GRB triggering in the energy band 0.3–50 MeV AGILE is now (March 2007) undergoing launcher integration and testing. The PLSV launch is planned in spring 2007. AGILE is then foreseen to be fully operational during the summer of 2007. more...
- Published
- 2007
- Full Text
- View/download PDF
45. Comparison at the sub-100 fW optical power level of calibrating a single-photon detector using a high-sensitive, low-noise silicon photodiode and the double attenuator technique
- Author
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Porrovecchio, G, primary, Šmid, M, additional, López, M, additional, Hofer, H, additional, Rodiek, B, additional, and Kück, S, additional
- Published
- 2016
- Full Text
- View/download PDF
46. Characterization of a tagged $\gamma$-ray beam line at the DAFNE Beam Test Facility
- Author
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Cattaneo, P W, Argan, A, Boffelli, F, Bulgarelli, A, Buonomo, B, Chen, A W, D’Ammando, F, FoggettA, L, Froysland, T, Fuschino, F, Galli, M, Gianotti, F, Giuliani, A, Longo, F, Marisaldi, M, Mazzitelli, G, Pellizzoni, A, Prest, M, Pucella, G, Quintieri, L, Rappoldi, A, Tavani, M, Trifoglio, M, Trois, A, Valente, P, Vallazza, E, Vercellone, S, Zambra, A, Barbiellini, G, Caraveo, P, Cocco, V, Costa, E, De Paris, G, Del Monte, E, Di Cocco, G, Donnarumma, I, Evangelista, Y, Feroci, M, Ferrari, A, Fiorini, M, Labanti, C, Lapshov, I, Lazzarotto, F, Lipari, P, Mastropietro, M, Mereghetti, S, Morelli, E, Moretti, E, Morselli, A, Pacciani, L, Perotti, F, Piano, G, Picozza, P, Pilia, M, Porrovecchio, G, Rapisarda, M, Rubini, A, Sabatini, S, Soffitta, P, Striani, E, Vittorini, V, Zanello, D, Colafrancesco, S, Giommi, P, Pittori, C, Santolamazza, P, Verrecchia, F, and Salotti, L more...
- Subjects
Physics::Instrumentation and Detectors ,Astrophysics::High Energy Astrophysical Phenomena ,Test beams infrastructure at CERN and Frascati [8.2] ,Improvement and equipment of irradiation and test beam lines [8] ,Detectors and Experimental Techniques - Abstract
At the core of the AGILE scientific instrument, designed to operate on a satellite, there is the Gamma Ray Imaging Detector (GRID) consisting of a Silicon Tracker (ST), a Cesium Iodide Mini-Calorimeter and an Anti-Coincidence system of plastic scintillator bars. The ST needs an on-ground calibration with a γ-ray beam to validate the simulation used to calculate the energy response function and the effective area versus the energy and the direction of the γ rays. A tagged γ-ray beam line was designed at the Beam Test Facility (BTF) of the INFN Laboratori Nazionali of Frascati (LNF), based on an electron beam generating γ-rays through bremsstrahlung in a position-sensitive target. The γ-ray energy is deduced by difference with the post-bremsstrahlung electron energy [1] and [2]. The electron energy is measured by a spectrometer consisting of a dipole magnet and an array of position sensitive silicon strip detectors, the Photon Tagging System (PTS). The use of the combined BTF-PTS system as tagged photon beam requires understanding the efficiency of γ-ray tagging, the probability of fake tagging, the energy resolution and the relation of the PTS hit position versus the γ-ray energy. This paper describes this study comparing data taken during the AGILE calibration occurred in 2005 with simulation. more...
- Published
- 2012
47. AGILE detection of extreme gamma-ray activity from the blazar PKS 1510-089 during March 2009
- Author
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D'Ammando, F., Raiteri, C. M., Villata, M., Romano, P., Pucella, G., Krimm, H. A., Covino, S., Orienti, M., Giovannini, G., Vercellone, S., Pian, E., Donnarumma, I., Vittorini, V., Tavani, M., Argan, A., Barbiellini, G., Boffelli, F., Bulgarelli, A., Caraveo, P., Cattaneo, P. W., Chen, A. W., Cocco, V., Costa, E., Del Monte, E., De Paris, G., Di Cocco, G., Evangelista, Y., Feroci, M., Ferrari, A., Fiorini, M., Froysland, T., Frutti, M., Fuschino, F., Galli, M., Gianotti, F., Giuliani, A., Labanti, C., Lapshov, I., Lazzarotto, F., Lipari, P., Longo, F., Marisaldi, M., Mereghetti, S., Morselli, A., Pacciani, L., Pellizzoni, A., Perotti, F., Piano, G., Picozza, P., Pilia, M., Porrovecchio, G., Prest, Michela, Rapisarda, M., Rappoldi, A., Rubini, A., Sabatini, S., Soffitta, P., Striani, E., Trifoglio, M., Trois, A., Vallazza, E., Zambra, A., Zanello, D., Agudo, I., Aller, H. D., Aller, M. F., Arkharov, A. A., Bach, U., Benitez, E., Berdyugin, A., Blinov, D. A., Buemi, C. S., Chen, W. P., Di Paola, A., Dolci, M., Forne, E., Fuhrmann, L., Gomez, J. L., Gurwell, M. A., Jordan, B., Jorstad, S. G., Heidt, J., Hiriart, D., Hovatta, T., Hsiao, H. Y., Kimeridze, G., Konstantinova, T. S., Kopatskaya, E. N., Koptelova, E., Kurtanidze, O. M., Kurtanidze, S. O., Larionov, V. M., Lahteenmaki, A., Leto, P., Lindfors, E., Marscher, A. P., Mcbreen, B., Mchardy, I. M., Morozova, D. A., Nilsson, K., Pasanen, M., Roca Sogorb, M., Sillanpaa, A., Takalo, L. O., Tornikoski, M., Trigilio, C., Troitsky, I. S., Umana, G., Antonelli, L. A., Colafrancesco, S., Pittori, C., Santolamazza, P., Verrecchia, F., Giommi, P., and Salotti, L. more...
- Subjects
radio quasar PKS 1510-089 ,AGILE satellite ,gamma-ray ,observations from UV to hard X-ray and radio - Published
- 2011
48. AGILE detection of extreme γ-ray activity from the blazar PKS 1510-089 during March 2009. Multifrequency analysis
- Author
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D' Ammando, F, Raiteri, C, Villata, M, Romano, P, Pucella, G, Krimm, H, Covino, S, Orienti, M, Giovannini, G, Vercellone, S, Pian, E, Donnarumma, I, Vittorini, V, Tavani, M, Argan, A, Barbiellini, G, Boffelli, F, Bulgarelli, A, Caraveo, P, Cattaneo, P, Chen, A, Cocco, V, Costa, E, Del Monte, E, de Paris, G, Di Cocco, G, Evangelista, Y, Feroci, M, Ferrari, A, Fiorini, M, Froysland, T, Frutti, M, Fuschino, F, Galli, M, Gianotti, F, Giuliani, A, Labanti, C, Lapshov, I, Lazzarotto, F, Lipari, P, Longo, F, Marisaldi, M, Mereghetti, S, Morselli, A, Pacciani, L, Pellizzoni, A, Perotti, F, Piano, G, Picozza, P, Pilia, M, Porrovecchio, G, Prest, M, Rapisarda, M, Rappoldi, A, Rubini, A, Sabatini, S, Soffitta, P, Striani, E, Trifoglio, M, Trois, A, Vallazza, E, Zambra, A, Zanello, D, Agudo, I, Aller, H, Aller, M, Arkharov, A, Bach, U, Benitez, E, Berdyugin, A, Blinov, D, Buemi, C, Chen, W, di Paola, A, Dolci, M, Forn#232, E, Fuhrmann, L, G#242, Mez, J, Gurwell, M, Jordan, B, Jorstad, S, Heidt, J, Hiriart, D, Hovatta, T, Hsiao, H, Kimeridze, G, Konstantinova, T, Kopatskaya, E, Koptelova, E, Kurtanidze, O, Kurtanidze, S, Larionov, V, Lahteenmaki, A, Leto, P, Lindfors, E, Marscher, A, Mcbreen, B, Mchardy, I, Morozova, D, Nilsson, K, Pasanen, M, Roca Sogorb, M, Sillanpaa, A, Takalo, L, Tornikoski, M, Trigilio, Corrado, Troitsky, I, Umana, G, Antonelli, L, Colafrancesco, S, Pittori, C, Santolamazza, P, Verrecchia, F, Giommi, P, and Salotti, L. more...
- Published
- 2011
49. AGILE in orbit
- Author
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Tavani, M., Barbiellini, G., Argan, A., Bulgarelli, A., Caraveo, P., Chen, A., Cocco, V., Costa, E., Paris, G., Del Monte, E., Di Cocco, G., Donnarumma, I., Feroci, M., Fiorini, M., Froysland, T., Frutti, M., Fuschino, F., Galli, M., Gianotti, F., Giuliani, A., Labanti, C., Lapshov, I., Lazzarotto, F., Lipari, P., Longo, F., Marisaldi, M., Mastropietro, M., Mattaini, E., Mauri, F., Mereghetti, S., Morelli, E., Morselli, A., Pacciani, L., Pellizzoni, A., Perotti, F., Picozza, P., Pontoni, C., Porrovecchio, G., Prest, M., Pucella, G., Rapisarda, M., Rossi, E., Rubini, A., Soffitta, P., Traci, A., Trifoglio, M., Trois, A., Vallazza, E., Vercellone, S., Zambra, A., Zanello, D., paolo giommi, Antonelli, A., Pittori, C., M., Tavani, BARBIELLINI AMIDEI, Guido, A., Argan, A., Bulgarelli, P., Caraveo, A., Chen, V., Cocco, E., Costa, G., DE PARIS, E., DEL MONTE, G., DI COCCO, I., Donnarumma, M., Feroci, M., Fiorini, T., Froysland, M., Frutti, F., Fuschino, M., Galli, F., Gianotti, A., Giuliani, C., Labanti, I., Lapshov, F., Lazzarotto, P., Lipari, Longo, Francesco, M., Marisaldi, M., Mastropietro, E., Mattaini, F., Mauri, S., Mereghetti, E., Morelli, A., Morselli, L., Pacciani, A., Pellizzoni, F., Perotti, P., Picozza, C., Pontoni, G., Porrovecchio, M., Prest, G., Pucella, M., Rapisarda, E., Rossi, A., Rubini, P., Soffitta, A., Traci, M., Trifoglio, A., Troi, E., Vallazza, S., Vercellone, A., Zambra, D., Zanello, P., Giommi, A., Antonelli, and C., Pittori more...
- Published
- 2007
50. Diode-array UV solar spectroradiometer implementing a digital micromirror device
- Author
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Feldman, A, primary, Burnitt, T, additional, Porrovecchio, G, additional, Smid, M, additional, Egli, L, additional, Gröbner, J, additional, and Nield, K M, additional
- Published
- 2014
- Full Text
- View/download PDF
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