Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Giordano, Silvio"'
The variability of helium abundance in the solar corona and the solar wind is an important signature of solar activity, solar cycle, solar wind sources, as well as coronal heating processes. Motivated by recently reported remote sensing UV imaging ob
Externí odkaz:
http://arxiv.org/abs/2406.14897
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:
Telloni, Daniele, Zank, Gary P., Adhikari, Laxman, Zhao, Lingling, Susino, Roberto, Antonucci, Ester, Fineschi, Silvano, Stangalini, Marco, Grimani, Catia, Sorriso-Valvo, Luca, Verscharen, Daniel, Marino, Raffaele, Giordano, Silvio, D'Amicis, Raffaella, Perrone, Denise, Carbone, Francesco, Liberatore, Alessandro, Bruno, Roberto, Zimbardo, Gaetano, Romoli, Marco, Andretta, Vincenzo, Da Deppo, Vania, Heinzel, Petr, Moses, John D., Naletto, Giampiero, Nicolini, Gianalfredo, Spadaro, Daniele, Teriaca, Luca, Burtovoi, Aleksandr, De Leo, Yara, Jerse, Giovanna, Landini, Federico, Pancrazzi, Maurizio, Sasso, Clementina, Slemer, Alessandra
Publikováno v:
The Astrophysical Journal, 2023
Evidence for the presence of ion cyclotron waves, driven by turbulence, at the boundaries of the current sheet is reported in this paper. By exploiting the full potential of the joint observations performed by Parker Solar Probe and the Metis coronag
Externí odkaz:
http://arxiv.org/abs/2302.10545
Autor:
West, Matthew J., Seaton, Daniel B., Wexler, David B., Raymond, John C., Del Zanna, Giulio, Rivera, Yeimy J., Kobelski, Adam R., DeForest, Craig, Golub, Leon, Caspi, Amir, Gilly, Chris R., Kooi, Jason E., Alterman, Benjamin L., Alzate, Nathalia, Banerjee, Dipankar, Berghmans, David, Chen, Bin, Chitta, Lakshmi Pradeep, Downs, Cooper, Giordano, Silvio, Higginson, Aleida, Howard, Russel A., Mason, Emily, Mason, James P., Meyer, Karen A., Nykyri, Katariina, Rachmeler, Laurel, Reardon, Kevin P., Reeves, Katharine K., Savage, Sabrina, Thompson, Barbara J., Van Kooten, Samuel J., Viall, Nicholeen M., Vourlidas, Angelos
Publikováno v:
Solar Physics, Vol. 298, 78 (61pp); 2023 June 14
The middle corona, the region roughly spanning heliocentric altitudes from $1.5$ to $6\,R_\odot$, encompasses almost all of the influential physical transitions and processes that govern the behavior of coronal outflow into the heliosphere. Eruptions
Externí odkaz:
http://arxiv.org/abs/2208.04485
Autor:
Telloni, Daniele, Andretta, Vincenzo, Antonucci, Ester, Bemporad, Alessandro, Capuano, Giuseppe E., Fineschi, Silvano, Giordano, Silvio, Habbal, Shadia, Perrone, Denise, Pinto, Rui F., Sorriso-Valvo, Luca, Spadaro, Daniele, Susino, Roberto, Woodham, Lloyd D., Zank, Gary P., Romoli, Marco, Bale, Stuart D., Kasper, Justin C., Auchère, Frédéric, Bruno, Roberto, Capobianco, Gerardo, Case, Anthony W., Casini, Chiara, Casti, Marta, Chioetto, Paolo, Corso, Alain J., Da Deppo, Vania, De Leo, Yara, de Wit, Thierry Dudok, Frassati, Federica, Frassetto, Fabio, Goetz, Keith, Guglielmino, Salvo L., Harvey, Peter R., Heinzel, Petr, Jerse, Giovanna, Korreck, Kelly E., Landini, Federico, Larson, Davin, Liberatore, Alessandro, Livi, Roberto, MacDowall, Robert J., Magli, Enrico, Malaspina, David M., Massone, Giuseppe, Messerotti, Mauro, Moses, John D., Naletto, Giampiero, Nicolini, Gianalfredo, Nisticò, Giuseppe, Panasenco, Olga, Pancrazzi, Maurizio, Pelizzo, Maria G., Pulupa, Marc, Reale, Fabio, Romano, Paolo, Sasso, Clementina, Schühle, Udo, Stangalini, Marco, Stevens, Michael L., Strachan, Leonard, Straus, Thomas, Teriaca, Luca, Uslenghi, Michela, Velli, Marco, Verscharen, Daniel, Volpicelli, Cosimo A., Whittlesey, Phyllis, Zangrilli, Luca, Zimbardo, Gaetano, Zuppella, Paola
Publikováno v:
Telloni, D., Andretta, V., Antonucci, E., et al. 2021, ApJL, 920, L14
This Letter addresses the first Solar Orbiter (SO) -- Parker Solar Probe (PSP) quadrature, occurring on January 18, 2021, to investigate the evolution of solar wind from the extended corona to the inner heliosphere. Assuming ballistic propagation, th
Externí odkaz:
http://arxiv.org/abs/2110.11031
Publikováno v:
A&A 654, A58 (2021)
This work focuses on the combination of White Light (WL) and UV (Ly-alpha) coronagraphic images to demonstrate the capability to measure the solar wind speed in the inner corona directly with the ratio between these two images (a technique called "qu
Externí odkaz:
http://arxiv.org/abs/2107.06811
Autor:
Raymond, John, Giordano, Silvio
Publikováno v:
The Astrophysical Journal , Volume 887, Number 1, 2019
Observations of sungrazing comets can be used to probe the solar corona, to study the composition of the comets, and to investigate the plasma processes that govern the interaction between the coronal plasma and cometary gas. UVCS observations of the
Externí odkaz:
http://arxiv.org/abs/1912.07282
Autor:
Ying, Beili, Bemporad, Alessandro, Giordano, Silvio, Pagano, Paolo, Feng, Li, Lu, Lei, Li, Hui, Gan, Weiqun
The determination of the speed of Coronal Mass Ejections (CMEs) is usually done by tracking brighter features (such as the CME front and core) in visible light coronagraphic images and by deriving unidimensional profiles of the CME speed as a functio
Externí odkaz:
http://arxiv.org/abs/1905.11772
Magnetic reconnection plays an integral part in nearly all models of solar flares and coronal mass ejections (CMEs). The reconnection heats and accelerates the plasma, produces energetic electrons and ions, and changes the magnetic topology to form m
Externí odkaz:
http://arxiv.org/abs/1706.03090
Comet C/2002 S2, a member of the Kreutz family of Sungrazing comets, was discovered in white light images of the SOHO/LASCO coronagraph on 2002 September 18 and observed in \hi\, \lya\, emission by the SOHO/UVCS instrument at four different heights a
Externí odkaz:
http://arxiv.org/abs/1411.1300