Zobrazeno 1 - 10
of 632
pro vyhledávání: '"Stanghellini, C."'
Autor:
Nesci, R., Cutini, S., Stanghellini, C., Martinelli, F., Maselli, A., Lipunov, V. M., Kornilov, V., Lopez, R. R., Siviero, A., Giroletti, M., Orienti, M.
The radio, optical, and $\gamma$-ray light curves of the blazar S5 1803+784, from the beginning of the {\it Fermi} Large Area Telescope (LAT) mission in August 2008 until December 2018, are presented. The aim of this work is to look for correlations
Externí odkaz:
http://arxiv.org/abs/2102.09779
Autor:
Principe, G., Migliori, G., Johnson, T. J., D'Ammando, F., Giroletti, M., Orienti, M., Stanghellini, C., Taylor, G. B., Torresi, E., Cheung, C. C.
Publikováno v:
A&A 635, A185 (2020)
Context. According to radiative models, radio galaxies may produce gamma-ray emission from the first stages of their evolution. However, very few such galaxies have been detected by the Fermi Large Area Telescope (LAT) so far. Aims. NGC 3894 is a nea
Externí odkaz:
http://arxiv.org/abs/2003.01476
Autor:
Bolli, P., Orfei, A., Zanichelli, A., Prestage, R., Tingay, S. J., Beltrán, M., Burgay, M., Contavalle, C., Honma, M., Kraus, A., Lindqvist, M., Perez, J. Lopez, Marongiu, P., Minamidani, T., Navarro, S., Pisanu, T., Shen, Z. -Q., Sohn, B. W., Stanghellini, C., Tzioumis, T., Zacchiroli, G.
This paper presents a survey of microwave front-end receivers installed at radio telescopes throughout the World. This unprecedented analysis was conducted as part of a review of front-end developments for Italian radio telescopes, initiated by the I
Externí odkaz:
http://arxiv.org/abs/1907.02491
Publikováno v:
In Sustainable Cities and Society April 2023 91
The 1908 June 30 Tunguska Event (TE) is one of the best studied cases of cosmic body impacting the Earth with global effects. However, still today, significant doubts are casted on the different proposed event reconstructions, because of shortage of
Externí odkaz:
http://arxiv.org/abs/1810.07427
Autor:
Bassi, T., Migliori, G., Grandi, P., Vignali, C., Pérez-Torres, M. A., Baldi, R. D., Torresi, E., Siemiginowska, A., Stanghellini, C.
We present a multi-wavelength study of IC 1531 (z=0.02564), an extragalactic radio source associated with the $\gamma$-ray object 3FGL J0009.9-3206 and classified as a blazar of uncertain type in the Third Fermi Large Area Telescope AGN Catalog (3LAC
Externí odkaz:
http://arxiv.org/abs/1810.02668
Autor:
Pilipenko, S. V., Kovalev, Y. Y., Andrianov, A. S., Bach, U., Buttaccio, S., Cassaro, P., Cimò, G., Edwards, P. G., Gawroński, M. P., Gurvits, L. I., Hovatta, T., Jauncey, D. L., Johnson, M. D., Kovalev, Yu. A., Kutkin, A. M., Lisakov, M. M., Melnikov, A. E., Orlati, A., Rudnitskiy, A. G., Sokolovsky, K. V., Stanghellini, C., de Vicente, P., Voitsik, P. A., Wolak, P., Zhekanis, G. V.
Publikováno v:
MNRAS 474 (2018) 3523
The high brightness temperatures, $T_\mathrm{b}\gtrsim 10^{13}$ K, detected in several active galactic nuclei by RadioAstron space VLBI observations challenge theoretical limits. Refractive scattering by the interstellar medium may affect such measur
Externí odkaz:
http://arxiv.org/abs/1711.06713
Autor:
Egron, E., Pellizzoni, A., Giroletti, M., Righini, S., Stagni, M., Orlati, A., Migoni, C., Melis, A., Concu, R., Barbas, L., Buttaccio, S., Cassaro, P., De Vicente, P., Gawronski, M. P., Lindqvist, M., Maccaferri, G., Stanghellini, C., Wolak, P., Yang, J., Navarrini, A., Loru, S., Pilia, M., Bachetti, M., Iacolina, M. N., Buttu, M., Corbel, S., Rodriguez, J., Markoff, S., Wilms, J., Pottschmidt, K., Bel, M. Cadolle, Kalemci, E., Belloni, T., Grinberg, V., Marongiu, M., Vargiu, G. P., Trois, A.
In September 2016, the microquasar Cygnus X-3 underwent a giant radio flare, which was monitored for 6 days with the Medicina Radio Astronomical Station and the Sardinia Radio Telescope. Long observations were performed in order to follow the evoluti
Externí odkaz:
http://arxiv.org/abs/1707.03761
Autor:
Prandoni, I., Murgia, M., Tarchi, A., Burgay, M., Castangia, P., Egron, E., Govoni, F., Pellizzoni, A., Ricci, R., Righini, S., Bartolini, M., Casu, S., Corongiu, A., Iacolina, M. N., Melis, A., Nasir, F. T., Orlati, A., Perrodin, D., Poppi, S., Trois, A., Vacca, V., Zanichelli, A., Bachetti, M., Buttu, M., Comoretto, G., Concu, R., Fara, A., Gaudiomonte, F., Loi, F., Migoni, C., Orfei, A., Pilia, M., Bolli, P., Carretti, E., D'Amico, N., Guidetti, D., Loru, S., Massi, F., Pisanu, T., Porceddu, I., Ridolfi, A., Serra, G., Stanghellini, C., Tiburzi, C., Tingay, S., Valente, G.
Publikováno v:
A&A 608, A40 (2017)
[Abridged] The Sardinia Radio Telescope (SRT) is the new 64-m dish operated by INAF (Italy). Its active surface will allow us to observe at frequencies of up to 116 GHz. At the moment, three receivers, one per focal position, have been installed and
Externí odkaz:
http://arxiv.org/abs/1703.09673
Global VLBI observations at 5 GHz have been performed to study the source morphology in 10 compact steep-spectrum (CSS) sources selected from the Peacock & Wall catalogue with the aim of finding asymmetric structures produced by the interaction with
Externí odkaz:
http://arxiv.org/abs/1304.6261