Results 11 to 20 of about 16,769 (212)

Coronal Heating Rate in the Slow Solar Wind

The Astrophysical Journal Letters, 2023
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 ...
Daniele Telloni, Marco Romoli, Marco Velli, Gary P. Zank, Laxman Adhikari, Cooper Downs, Aleksandr Burtovoi, Roberto Susino, Daniele Spadaro, Lingling Zhao, Alessandro Liberatore, Chen Shi, Yara De Leo, Lucia Abbo, Federica Frassati, Giovanna Jerse, Federico Landini, Gianalfredo Nicolini, Maurizio Pancrazzi, Giuliana Russano, Clementina Sasso, Vincenzo Andretta, Vania Da Deppo, Silvano Fineschi, Catia Grimani, Petr Heinzel, John D. Moses, Giampiero Naletto, Marco Stangalini, Luca Teriaca, Michela Uslenghi, Arkadiusz Berlicki, Roberto Bruno, Gerardo Capobianco, Giuseppe E. Capuano, Chiara Casini, Marta Casti, Paolo Chioetto, Alain J. Corso, Raffaella D’Amicis, Michele Fabi, Fabio Frassetto, Marina Giarrusso, Silvio Giordano, Salvo L. Guglielmino, Enrico Magli, Giuseppe Massone, Mauro Messerotti, Giuseppe Nisticò, Maria G. Pelizzo, Fabio Reale, Paolo Romano, Udo Schühle, Sami K. Solanki, Thomas Straus, Rita Ventura, Cosimo A. Volpicelli, Luca Zangrilli, Gaetano Zimbardo, Paola Zuppella, Stuart D. Bale, Justin C. Kasper   +61 more
doaj   +8 more sources

Multi-Scale Variability of Coronal Loops Set by Thermal Non-Equilibrium and Instability as a Probe for Coronal Heating

Frontiers in Astronomy and Space Sciences, 2022
Solar coronal loops are the building blocks of the solar corona. These dynamic structures are shaped by the magnetic field that expands into the solar atmosphere.
Patrick Antolin, Clara Froment
doaj   +3 more sources

Solar Coronal Heating by Kinetic Alfvén Waves

The Astrophysical Journal
The utilization of the Cairns distribution serves as a vital tool for characterizing the nonthermal attributes commonly observed in space plasmas.
Syed Ayaz, Gang Li, Imran A. Khan
doaj   +3 more sources

Kinetic Physics of the Solar Corona and Solar Wind

Living Reviews in Solar Physics, 2006
Kinetic plasma physics of the solar corona and solar wind are reviewed with emphasis on the theoretical understanding of the in situ measurements of solar wind particles and waves, as well as on the remote-sensing observations of the solar corona made by
Marsch Eckart
doaj   +2 more sources

Polarisation of decayless kink oscillations of solar coronal loops [PDF]

Nature Communications, 2023
Decayless kink oscillations of plasma loops in the solar corona may contain an answer to the enigmatic problem of solar and stellar coronal heating. The polarisation of the oscillations gives us a unique information about their excitation mechanisms and ...
Sihui Zhong, Valery M. Nakariakov, Dmitrii Y. Kolotkov, Lakshmi Pradeep Chitta, Patrick Antolin, Cis Verbeeck, David Berghmans   +6 more
doaj   +2 more sources

Numerical Study of Divergence Cleaning and Coronal Heating/Acceleration Methods in the 3D COIN-TVD MHD Model

Frontiers in Physics, 2021
In the solar coronal numerical simulation, the coronal heating/acceleration and the magnetic divergence cleaning techniques are very important. The coronal–interplanetary total variation diminishing (COIN-TVD) magnetohydrodynamic (MHD) model is developed
Chang Liu, Chang Liu, Fang Shen, Fang Shen, Yousheng Liu, Yousheng Liu, Man Zhang, Man Zhang, Xiaojing Liu, Xiaojing Liu   +9 more
doaj   +1 more source

Radiation-Resistant Aluminum Alloy for Space Missions in the Extreme Environment of the Solar System. [PDF]

Adv Mater
A novel ultrafine‐grained aluminum crossover alloy exhibits unprecedented radiation resistance and mechanical stability under extreme irradiation doses up to 100 dpa. The exceptional resilience arises from thermodynamically stable T‐phase precipitates, enabling lightweight structural materials for next‐generation spacecraft and extraterrestrial ...
Willenshofer PD, Tunes MA, Vo HT, Stemper L, Alfreider M, Renk O, Greaves G, Kiener D, Uggowitzer PJ, Pogatscher S.   +9 more
europepmc   +2 more sources

Prospective Implications of Extreme-ultraviolet Coronal Plumes for Magnetic-network Genesis of Coronal Heating, Coronal-hole Solar Wind, and Solar-wind Magnetic Field Switchbacks

The Astrophysical Journal Letters, 2023
We propose that coronal heating in EUV coronal plumes is weaker, not stronger, than in adjacent nonplume coronal magnetic funnels. This expectation stems from (i) the observation that an EUV plume is born as the magnetic flux at the foot of the plume’s ...
Ronald L. Moore, Sanjiv K. Tiwari, Navdeep K. Panesar, Alphonse C. Sterling   +3 more
doaj   +1 more source

Deciphering Solar Coronal Heating: Energizing Small-scale Loops through Surface Convection

The Astrophysical Journal Letters, 2023
The solar atmosphere is filled with clusters of hot small-scale loops commonly known as coronal bright points (CBPs). These ubiquitous structures stand out in the Sun by their strong X-ray and/or extreme-ultraviolet (EUV) emission for hours to days ...
D. Nóbrega-Siverio, F. Moreno-Insertis, K. Galsgaard, K. Krikova, L. Rouppe van der Voort, R. Joshi, M. S. Madjarska   +6 more
doaj   +1 more source

ALFVÉN WAVE SOLAR MODEL (AWSoM): CORONAL HEATING [PDF]

The Astrophysical Journal, 2014
We present a new version of the Alfven Wave Solar Model (AWSoM), a global model from the upper chromosphere to the corona and the heliosphere. The coronal heating and solar wind acceleration are addressed with low-frequency Alfven wave turbulence. The injection of Alfven wave energy at the inner boundary is such that the Poynting flux is proportional ...
van der Holst, Bart, Sokolov, Igor V., Meng, Xing, Jin, Meng, Manchester IV, Ward B., Toth, Gabor, Gombosi, Tamas I.   +6 more
openaire   +2 more sources