Zobrazeno 1 - 10
of 379
pro vyhledávání: '"Guglielmino S"'
Publikováno v:
A&A 686, A244 (2024)
We analyse the spatial distribution and vertical stratification of the physical parameters of the solar atmosphere when an X-class flare occurs. We made use of observations acquired by the Interferometric Bidimensional Spectropolarimeter instrument w
Externí odkaz:
http://arxiv.org/abs/2404.06231
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
Autor:
Russano, G., Andretta, V., De Leo, Y., Teriaca, L., Uslenghi, M., Giordano, S., Telloni, D., Heinzel, P., č, S. Jej či, Abbo, L., Bemporad, A., Burtovoi, A., Capuano, G. E., Frassati, F., Guglielmino, S., Jerse, G., Landini, F., Liberatore, A., Nicolini, G., Pancrazzi, M., Romano, P., Sasso, C., Susino, R., Zangrilli, L., Da Deppo, V., Fineschi, S., Grimani, C., Moses, J. D., Naletto, G., Romoli, M., Spadaro, D., Stangalini, M.
Metis, the coronagraph on board Solar Orbiter, provides for the first time coronagraphic imaging in the ultraviolet HI Ly-alpha line and, simultaneously, in polarized visible light, thus providing a host of information on the properties of CMEs and s
Externí odkaz:
http://arxiv.org/abs/2312.01899
The non-association of coronal mass ejections with high energetic flares is sparse. For this reason, the magnetic conditions required for the confinedness of major flares is a topic of active research. Using multi-instrument observations, we investig
Externí odkaz:
http://arxiv.org/abs/2304.12156
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
Publikováno v:
A&A 655, A28 (2021)
Surges are cool and dense ejections typically observed in chromospheric lines and closely related to other solar phenomena like UV bursts or coronal jets. Our aim is to address the current lack of inverted models and diagnostics of surges as well as
Externí odkaz:
http://arxiv.org/abs/2108.13960
Autor:
Capuano, G. E., Dolei, S., Spadaro, D., Guglielmino, S. L., Romano, P., Ventura, R., Andretta, V., Bemporad, A., Sasso, C., Susino, R., Da Deppo, V., Frassetto, F., Giordano, S. M., Landini, F., Nicolini, G., Pancrazzi, M., Romoli, M., Zangrilli, L.
Publikováno v:
A&A 652, A85 (2021)
The determination of solar wind outflow velocity is fundamental in order to probe the mechanisms of wind acceleration in the corona. We aim to study, via the Doppler dimming technique, the effects that the chromospheric Ly{\alpha} line profile shape
Externí odkaz:
http://arxiv.org/abs/2108.05957
Autor:
Murabito, M., Guglielmino, S. L., Ermolli, I., Romano, P., Jafarzadeh, S., van der Voort, L. H. M. Rouppe
Publikováno v:
A&A 653, A93 (2021)
The physical conditions leading the sunspot penumbra decay are poorly understood so far. We investigate the photospheric magnetic and velocity properties of a sunspot penumbra during the decay phase to advance the current knowledge of the conditions
Externí odkaz:
http://arxiv.org/abs/2106.04936
We describe the disappearance of a sector of sunspot penumbra and its restoring process observed in the preceding sunspot of active region NOAA 12348. The evolution of the magnetic field and the plasma flows support the idea that the penumbra forms d
Externí odkaz:
http://arxiv.org/abs/2006.09746