Zobrazeno 1 - 10
of 4 393
pro vyhledávání: '"Andretta, A."'
Autor:
Lezzi, Serena Maria, Long, David M., Andretta, Vincenzo, Baker, Deborah, Dolliou, Antoine, Murabito, Mariarita, Parenti, Susanna, Prado, Natalia Zambrana
Publikováno v:
A&A 690, A342 (2024)
Solar active regions (ARs) are often surrounded by dark large areas of reduced emission compared to the quiet Sun, observed at various wavelengths corresponding to chromosphere, transition region (TR) and corona, and known as Dark Halos (DHs). DHs ha
Externí odkaz:
http://arxiv.org/abs/2408.17172
Autor:
Andretta, Alessandro, Notaro, Lorenzo
Generalizing a result of T\"ornquist and Weiss, we study the connection between the existence of $\varSigma_2^1$ Sierpi\'{n}ski's coverings of $\mathbb{R}^n$, and a cardinal invariant of the upper semi-lattice of constructibility degrees known as bre
Externí odkaz:
http://arxiv.org/abs/2408.10182
Autor:
Andretta, Alessandro, Izmestiev, Ivan
For all $d \geq 3$ we show that the cardinality of $ \mathbb{R} $ is at most $\aleph_n $ if and only if $ \mathbb{R}^d $ can be covered with $ ( n + 1 ) ( d - 1 ) + 1 $ sprays whose centers are in general position in a hyperplane. This extends previo
Externí odkaz:
http://arxiv.org/abs/2406.04078
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
Publikováno v:
A&A 680, A61 (2023)
Dark areas around active regions (ARs) have been first observed in chromospheric lines more than a century ago and are now associated to the H{\alpha} fibril vortex around ARs. Nowadays, large areas surrounding ARs with reduced emission relative to t
Externí odkaz:
http://arxiv.org/abs/2309.11956
Autor:
Rosa Maritato, Alessia Medugno, Emanuela D’Andretta, Giulia De Riso, Mariangela Lupo, Salvatore Botta, Elena Marrocco, Mario Renda, Martina Sofia, Claudio Mussolino, Maria Laura Bacci, Enrico Maria Surace
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-12 (2024)
Abstract Gene expression emerges from DNA sequences through the interaction of transcription factors (TFs) with DNA cis-regulatory sequences. In eukaryotes, TFs bind to transcription factor binding sites (TFBSs) with differential affinities, enabling
Externí odkaz:
https://doaj.org/article/c5182870445940eba8dcb55203e863c2
Autor:
Grimani, Catia, Andretta, Vincenzo, Antonucci, Ester, Chioetto, Paolo, Da Deppo, Vania, Fabi, Michele, Gissot, Samuel, Jerse, Giovanna, Messerotti, Mauro, Naletto, Giampiero, Pancrazzi, Maurizio, Persici, Andrea, Plainaki, Christina, Romoli, Marco, Sabbatini, Federico, Spadaro, Daniele, Stangalini, Marco, Telloni, Daniele, Teriaca, Luca, Uslenghi, Michela, Villani, Mattia, Abbo, Lucia, Burtovoi, Aleksandr, Frassati, Federica, Landini, Federico, Nicolini, Giana, Russano, Giuliana, Sasso, Clementina, Susino, Roberto
Publikováno v:
A&A 677, A45 (2023)
Context. Galactic cosmic rays (GCRs) and solar particles with energies greater than tens of MeV penetrate spacecraft and instruments hosted aboard space missions. The Solar Orbiter Metis coronagraph is aimed at observing the solar corona in both visi
Externí odkaz:
http://arxiv.org/abs/2307.11598
Autor:
Telloni, Daniele, Romoli, Marco, Velli, Marco, Zank, Gary P., Adhikari, Laxman, Downs, Cooper, Burtovoi, Aleksandr, Susino, Roberto, Spadaro, Daniele, Zhao, Lingling, Liberatore, Alessandro, Shi, Chen, De Leo, Yara, Abbo, Lucia, Frassati, Federica, Jerse, Giovanna, Landini, Federico, Nicolini, Gianalfredo, Pancrazzi, Maurizio, Russano, Giuliana, Sasso, Clementina, Andretta, Vincenzo, Da Deppo, Vania, Fineschi, Silvano, Grimani, Catia, Heinzel, Petr, Moses, John D., Naletto, Giampiero, Stangalini, Marco, Teriaca, Luca, Uslenghi, Michela, Berlicki, Arkadiusz, Bruno, Roberto, Capobianco, Gerardo, Capuano, Giuseppe E., Casini, Chiara, Casti, Marta, Chioetto, Paolo, Corso, Alain J., D'Amicis, Raffaella, Fabi, Michele, Frassetto, Fabio, Giarrusso, Marina, Giordano, Silvio, Guglielmino, Salvo L., Magli, Enrico, Massone, Giuseppe, Messerotti, Mauro, Nisticò, Giuseppe, Pelizzo, Maria G., Reale, Fabio, Romano, Paolo, Schühle, Udo, Solanki, Sami K., Straus, Thomas, Ventura, Rita, Volpicelli, Cosimo A., Zangrilli, Luca, Zimbardo, Gaetano, Zuppella, Paola, Bale, Stuart D., Kasper, Justin C.
This Letter reports the first observational estimate of the heating rate in the slowly expanding solar corona. The analysis exploits the simultaneous remote and local observations of the same coronal plasma volume with the Solar Orbiter/Metis and the
Externí odkaz:
http://arxiv.org/abs/2306.10819
Autor:
Auchère, Berghmans, Dumesnil, Halain, -P., J., Mercier, Rochus, Delmotte, François, Hermans, Hervier, Kraaikamp, Meltchakov, Morinaud, Philippon, Smith, J., P., Stegen, Verbeeck, Zhang, Y., X., Andretta, Abbo, Buchlin, Frassati, Gissot, Gyo, Harra, Jerse, Landini, Mierla, Nicula, Parenti, Renotte, Romoli, Russano, Sasso, Schühle, Schmutz, Soubrié, Susino, Teriaca, West, Zhukov, N, A.
Publikováno v:
A&A 674, A127 (2023)
Most observations of the solar corona beyond 2 Rs consist of broadband visible light imagery from coronagraphs. The associated diagnostics mainly consist of kinematics and derivations of the electron number density. While the measurement of the prope
Externí odkaz:
http://arxiv.org/abs/2305.15308
Autor:
Andretta, Alessandro, Notaro, Lorenzo
The Axiom of Dependent Choice $\mathsf{DC}$ and the Axiom of Countable Choice $\mathsf{AC}_\omega$ are two weak forms of the Axiom of Choice that can be stated for a specific set: $\mathsf{DC}(X)$ asserts that any total binary relation on $X$ has an
Externí odkaz:
http://arxiv.org/abs/2305.06676