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Your search keyword '"Capezzali, D."' showing total 3 results
Start Over Author "Capezzali, D." Publisher edp sciences
3 results on '"Capezzali, D."'

1. The 72-h WEBT microvariability observation of blazar S5 0716 + 714 in 2009

Author

Bhatta, G., primary, Webb, J. R., additional, Hollingsworth, H., additional, Dhalla, S., additional, Khanuja, A., additional, Bachev, R., additional, Blinov, D. A., additional, Böttcher, M., additional, Bravo Calle, O. J. A., additional, Calcidese, P., additional, Capezzali, D., additional, Carosati, D., additional, Chigladze, R., additional, Collins, A., additional, Coloma, J. M., additional, Efimov, Y., additional, Gupta, A. C., additional, Hu, S.-M., additional, Kurtanidze, O., additional, Lamerato, A., additional, Larionov, V. M., additional, Lee, C.-U., additional, Lindfors, E., additional, Murphy, B., additional, Nilsson, K., additional, Ohlert, J. M., additional, Oksanen, A., additional, Pääkkönen, P., additional, Pollock, J. T., additional, Rani, B., additional, Reinthal, R., additional, Rodriguez, D., additional, Ros, J. A., additional, Roustazadeh, P., additional, Sagar, R., additional, Sanchez, A., additional, Shastri, P., additional, Sillanpää, A., additional, Strigachev, A., additional, Takalo, L., additional, Vennes, S., additional, Villata, M., additional, Villforth, C., additional, Wu, J., additional, and Zhou, X., additional

Published
2013
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2. The GASP-WEBT monitoring of 3C 454.3 during the 2008 optical-to-radio and γ-ray outburst

Author

Villata, M., primary, Raiteri, C. M., additional, Gurwell, M. A., additional, Larionov, V. M., additional, Kurtanidze, O. M., additional, Aller, M. F., additional, Lähteenmäki, A., additional, Chen, W. P., additional, Nilsson, K., additional, Agudo, I., additional, Aller, H. D., additional, Arkharov, A. A., additional, Bach, U., additional, Bachev, R., additional, Beltrame, P., additional, Benítez, E., additional, Buemi, C. S., additional, Böttcher, M., additional, Calcidese, P., additional, Capezzali, D., additional, Carosati, D., additional, Da Rio, D., additional, Di Paola, A., additional, Dolci, M., additional, Dultzin, D., additional, Forné, E., additional, Gómez, J. L., additional, Hagen-Thorn, V. A., additional, Halkola, A., additional, Heidt, J., additional, Hiriart, D., additional, Hovatta, T., additional, Hsiao, H.-Y., additional, Jorstad, S. G., additional, Kimeridze, G. N., additional, Konstantinova, T. S., additional, Kopatskaya, E. N., additional, Koptelova, E., additional, Leto, P., additional, Ligustri, R., additional, Lindfors, E., additional, Lopez, J. M., additional, Marscher, A. P., additional, Mommert, M., additional, Mujica, R., additional, Nikolashvili, M. G., additional, Palma, N., additional, Pasanen, M., additional, Roca-Sogorb, M., additional, Ros, J. A., additional, Roustazadeh, P., additional, Sadun, A. C., additional, Saino, J., additional, Sigua, L. A., additional, Sorcia, M., additional, Takalo, L. O., additional, Tornikoski, M., additional, Trigilio, C., additional, Turchetti, R., additional, and Umana, G., additional

Published
2009
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3. The 72-h WEBT microvariability observation of blazar S5 0716+714 in 2009.

Author

Bhatta, G., Webb, J. R., Hollingsworth, H., Dhalla, S., Khanuja, A., Bachev, R., Blinov, D. A., Böttcher, M., Bravo Calle, O. J. A., Calcidese, P., Capezzali, D., Carosati, D., Chigladze, R., Collins, A., Coloma, J.M., Efimov, Y., Gupta, A. C., S.-M. Hu, Kurtanidze, O., and Lamerato, A.

Subjects
ASTRONOMICAL observations, BL Lacertae objects, DECLINATION (Astronomy), QUASARS, SYNCHROTRONS, STOCHASTIC processes, FOURIER transform spectroscopy
Abstract

Context. The international Whole Earth Blazar Telescope (WEBT) consortium planned and carried out three days of intensive micro-variability observations of S5 0716+714 from February 22, 2009 to February 25, 2009. This object was chosen due to its bright apparent magnitude range, its high declination, and its very large duty cycle for micro-variations. Aims. We report here on the long continuous optical micro-variability light curve of 0716+714 obtained during the multi-site observing campaign during which the Blazar showed almost constant variability over a 0.5 mag range. The resulting light curve is presented here for the first time. Observations from participating observatories were corrected for instrumental differences and combined to construct the overall smoothed light curve. Methods. Thirty-six observatories in sixteen countries participated in this continuous monitoring program and twenty of them submitted data for compilation into a continuous light curve. The light curve was analyzed using several techniques including Fourier transform, Wavelet and noise analysis techniques. Those results led us to model the light curve by attributing the variations to a series of synchrotron pulses. Results. We have interpreted the observed microvariations in this extended light curve in terms of a new model consisting of individual stochastic pulses due to cells in a turbulent jet which are energized by a passing shock and cool by means of synchrotron emission. We obtained an excellent fit to the 72-hour light curve with the synchrotron pulse model. [ABSTRACT FROM AUTHOR]

Published
2013
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