Zobrazeno 1 - 10
of 78
pro vyhledávání: '"Iacolina, M. N."'
Autor:
Podgorný, J., Svoboda, J., Dovčiak, M., Veledina, A., Poutanen, J., Kaaret, P., Bianchi, S., Ingram, A., Capitanio, F., Datta, S. R., Egron, E., Krawczynski, H., Matt, G., Muleri, F., Petrucci, P. -O., Russell, T. D., Steiner, J. F., Bollemeijer, N., Brigitte, M., Segura, N. Castro, Emami, R., García, J. A., Hu, K., Iacolina, M. N., Kravtsov, V., Marra, L., Mastroserio, G., Muñoz-Darias, T., Nathan, E., Negro, M., Ratheesh, A., Cavero, N. Rodriguez, Taverna, R., Tombesi, F., Yang, Y. J., Zhang, W., Zhang, Y.
Publikováno v:
A&A 686, L12 (2024)
We report on the detection of X-ray polarisation in the black-hole X-ray binary Swift J1727.8$-$1613 during its dim hard spectral state by the Imaging X-ray Polarimetry Explorer (IXPE). This is the first detection of X-ray polarisation at the transit
Externí odkaz:
http://arxiv.org/abs/2404.19601
Autor:
Marongiu, M., Pellizzoni, A., Righini, S., Mulas, S., Nesti, R., Burtovoi, A., Romoli, M., Serra, G., Valente, G., Egron, E., Murtas, G., Iacolina, M. N., Melis, A., Guglielmino, S. L., Loru, S., Zucca, P., Zanichelli, A., Bachetti, M., Bemporad, A., Buffa, F., Concu, R., Deiana, G. L., Karakotia, C., Ladu, A., Maccaferri, A., Marongiu, P., Messerotti, M., Navarrini, A., Orfei, A., Ortu, P., Pili, M., Pisanu, T., Pupillo, G., Romano, P., Saba, A., Schirru, L., Tiburzi, C., Abbo, L., Frassati, F., Giarrusso, M., Jerse, G., Landini, F., Pancrazzi, M., Russano, G., Sasso, C., Susino, R.
One of the most important objectives of solar physics is the physical understanding of the solar atmosphere, the structure of which is also described in terms of the density (N) and temperature (T) distributions of the atmospheric matter. Several mul
Externí odkaz:
http://arxiv.org/abs/2402.07018
Autor:
Marongiu, M., Pellizzoni, A., Mulas, S., Righini, S., Nesti, R., Murtas, G., Egron, E., Iacolina, M. N., Melis, A., Valente, G., Serra, G., Guglielmino, S. L., Zanichelli, A., Romano, P., Loru, S., Bachetti, M., Bemporad, A., Buffa, F., Concu, R., Deiana, G. L., Karakotia, C., Ladu, A., Maccaferri, A., Marongiu, P., Messerotti, M., Navarrini, A., Orfei, A., Ortu, P., Pili, M., Pisanu, T., Pupillo, G., Saba, A., Schirru, L., Tiburzi, C., Zucca, P.
The Sun is an extraordinary workbench, from which several fundamental astronomical parameters can be measured with high precision. Among these parameters, the solar radius $R_{\odot}$ plays an important role in several aspects, such as in evolutionar
Externí odkaz:
http://arxiv.org/abs/2401.13198
Multi-wavelength observations of the lensed quasar PKS 1830$-$211 during the 2019 $\gamma$-ray flare
Autor:
Vercellone, S., Donnarumma, I., Pittori, C., Capitanio, F., De Rosa, A., Di Gesu, L., Kiehlmann, S., Iacolina, M. N., Pellizzoni, P. A., Egron, E., Pacciani, L., Piano, G., Puccetti, S., Righini, S., Valente, G., Verrecchia, F., Vittorini, V., Tavani, M., Brocato, E., Chen, A. W., Hovatta, T., Melis, A., Max-Moerbeck, W., Perrodin, D., Pilia, M., Pili, M., Readhead, A. C. S., Reeves, R., Ridolfi, A., Vitali, F., Bulgarelli, A., Cattaneo, P. W., Lucarelli, F., Morselli, A., Trois, A.
PKS 1830$-$211 is a $\gamma$-ray emitting, high-redshift (z $= 2.507 \pm 0.002$), lensed flat-spectrum radio quasar. During the period mid-February to mid-April 2019, this source underwent a series of strong $\gamma$-ray flares that were detected by
Externí odkaz:
http://arxiv.org/abs/2311.07332
Autor:
Pellizzoni, A., Righini, S., Iacolina, M. N., Marongiu, M., Mulas, S., Murtas, G., Valente, G., Egron, E., Bachetti, M., Buffa, F., Concu, R., Deiana, G. L., Guglielmino, S. L., Ladu, A., Loru, S., Maccaferri, A., Marongiu, P., Melis, A., Navarrini, A., Orfei, A., Ortu, P., Pili, M., Pisanu, T., Pupillo, G., Saba, A., Schirru, L., Serra, G., Tiburzi, C., Zanichelli, A., Zucca, P., Messerotti, M.
We present a new solar radio imaging system implemented through the upgrade of the large single-dish telescopes of the Italian National Institute for Astrophysics (INAF), not originally conceived for solar observations. During the development and ear
Externí odkaz:
http://arxiv.org/abs/2205.00197
Autor:
Loru, S., Pellizzoni, A., Egron, E., Ingallinera, A., Morlino, G., Celli, S., Umana, G., Trigilio, C., Leto, P., Iacolina, M. N., Righini, S., Reich, P., Mulas, S., Marongiu, M., Pilia, M., Melis, A., Concu, R., Bufano, M., Buemi, C., Cavallaro, F., Riggi, S., Schillirò, F.
Supernova remnants (SNRs) represent a powerful laboratory to study the Cosmic-Ray acceleration processes at the shocks, and their relation to the properties of the circumstellar medium. With the aim of studying the high-frequency radio emission and i
Externí odkaz:
http://arxiv.org/abs/2009.09948
Autor:
Loru, S., Pellizzoni, A., Egron, E., Righini, S., Iacolina, M. N., Mulas, S., Cardillo, M., Marongiu, M., Ricci, R., Bachetti, M., Pilia, M., Trois, A., Ingallinera, A., Petruk, O., Murtas, G., Serra, G., Buffa, F., Concu, R., Gaudiomonte, F., Melis, A., Navarrini, A., Perrodin, D., Valente, G.
The main characteristics in the radio continuum spectra of Supernova Remnants (SNRs) result from simple synchrotron emission. In addition, electron acceleration mechanisms can shape the spectra in specific ways, especially at high radio frequencies.
Externí odkaz:
http://arxiv.org/abs/1805.04376
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:
Egron, E., Pellizzoni, A., Iacolina, M. N., Loru, S., Marongiu, M., Righini, S., Cardillo, M., Giuliani, A., Mulas, S., Murtas, G., Simeone, D., Concu, R., Melis, A., Trois, A., Pilia, M., Navarrini, A., Vacca, V., Ricci, R., Serra, G., Bachetti, M., Buttu, M., Perrodin, D., Buffa, F., Deiana, G. L., Gaudiomonte, F., Fara, A., Ladu, A., Loi, F., Marongiu, P., Migoni, C., Pisanu, T., Poppi, S., Saba, A., Urru, E., Valente, G., Vargiu, G. P.
Observations of supernova remnants (SNRs) are a powerful tool for investigating the later stages of stellar evolution, the properties of the ambient interstellar medium, and the physics of particle acceleration and shocks. For a fraction of SNRs, mul
Externí odkaz:
http://arxiv.org/abs/1705.06886
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