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Your search keyword '"Natalucci, L"' showing total 14 results
Start Over Author "Natalucci, L" Publisher elsevier b.v.
14 results on '"Natalucci, L"'

6. The Compton Cube

Author

Lebrun, F., Bazzano, A., Borrel, V., Cassé, M., Bykov, A., Coc, A., Daigne, F., Goldoni, P., Grigorczuck, J., Hernanz, M., Laurent, P., Mandrou, P., Marcinkowski, R., Mochkovitch, R., Natalucci, L., Parizot, E., Paul, J., Petrucci, P.-O., Tatischeff, V., and Ubertini, P.

Published
2003
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12. INTEGRAL/IBIS search for e−e+ annihilation radiation from the galactic center region

Author

De Cesare, G., Bazzano, A., Capitanio, F., Del Santo, M., Lonjou, V., Natalucci, L., Ubertini, P., and Von Ballmoos, P.

Subjects
*PARTICLES (Nuclear physics), *POSITRON annihilation, *NUCLEAR physics, *MILKY Way
Abstract

Abstract: Electron–positron annihilation radiation from the Galactic Center Region has been detected since the seventies, but its astrophysical origin is still a topic of a scientific debate. We have analyzed data of the gamma-ray imager IBIS/ISGRI onboard of ESA’s INTEGRAL platform in the e−e+ line. During the first year of the missions Galactic Center Deep Exposure no evidence for point sources at 511 keV has been found in the ISGRI data; the 2σ upper limit for resolved single point sources is estimated to be 1.6×10−4 phcm−2 s−1. [Copyright &y& Elsevier]

Published
2006
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13. INTEGRAL observation of the Crab pulsar

Author

Mineo, T., Cusumano, G., Foschini, L., Segreto, A., Bazzano, A., Cocco, G. Di, Malaguti, G., and Natalucci, L.

Subjects
*PULSARS, *SPECTRUM analysis, *GRAPHIC methods, *RADIATION sources
Abstract

Abstract: In this paper, we present the timing and spectral analysis of several observations of the Crab pulsar with INTEGRAL. All these observations, when summed together provide an high-statistics data set which can be used for accurate phase resolved spectroscopy of the pulsed emission over the energy range 3–350 keV. In particular, we present the light curves in several energy ranges and phase-resolved spectral analysis of the pulsed emission. [Copyright &y& Elsevier]

Published
2006
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14. Spectral behaviour of an INTEGRAL sample of black hole candidates: Initial results

Author

Ubertini, P., Bazzano, A., Capitanio, F., Cesare, G. De, Santo, M. Del, Natalucci, L., Tarana, A., Roques, J.P., Joinet, A., Jourdain, E., Kretschmar, P., Zdziarski, A.A., Dean, A.J., Barlow, E.J., Cadolle Bel, M., and Goldwurm, A.

Subjects
*SUPERMASSIVE black holes, *STARS, *ASTRONOMY, *GRAVITATIONAL collapse
Abstract

Abstract: In this paper, we present the spectral characteristics of a sample of Black Hole Candidates observed with the IBIS, SPI and JEM-X instruments on board the INTEGRAL Gamma-ray Observatory. This work is part of the long term, systematic, spectral study programme of intermediate intensity BHC (<500 mCrab) within the INTEGRAL Core Programme observations. The basic data set is from Galactic Plane Scan (GPS) and Galactic Centre Deep Exposure (GCDE), collected from the beginning of the Integral scientific observation programme. We will address in particular the behaviour of IGR J17464-3213, 1E 1740.7-294 and XTE J1720-318. [Copyright &y& Elsevier]

Published
2006
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