Results 31 to 40 of about 12,081 (211)

Influence of projection effects on the observed differential rotation rate in the UV corona

Journal of Advanced Research, 2013
Following previous investigations by Giordano and Mancuso [1] and Mancuso and Giordano [2,3] on the differential rotation of the solar corona as obtained through the analysis of the intensity time series of the O VI 1032 Å spectral line observed by the ...
Salvatore Mancuso, Silvio Giordano
doaj   +1 more source

SWIFF : space weather integrated forecasting framework [PDF]

, 2013
This research has received funding from the European Commission’s FP7 Program with the grant agreement SWIFF (Project No. 2633430, swiff.eu). The KU Leuven simulations were conducted on the computational resources provided by the PRACE Tier-0 Project No.
Viviane Pierrard, Bemporad, Alessandro, Parnell, Clare Elizabeth, O. Sebek, HENRI, PIERRE REMI ANTOINE, Mackay, Duncan H., Ondřej Šebek, Clare E. Parnell, Nordlund, Åke, Trávníček, Pavel M., Bemporad, A., Åke Nordlund, Mackay, Duncan Hendry, R. Keppens, A. Restante, Alessandro Bemporad, Pegoraro, Francesco, Parnell, C., V. Pierrard, Pierrard, Viviane, Markidis, Stefano,, D. Mackay, Keppens, R., Restante, A., Mackay, D., Faganello, Matteo, Stefano Markidis, Jacob Trier Frederiksen, Mackay, D.H., A. Bemporad, Faganello, M., Rony Keppens, Kris Borremans, Olshevsky, Vyacheslav, Pegoraro, F., Susino, R., M. Faganello V. Olshevsky, Parnell, Clare E., Borremans, K., K. Borremans, S. Poedts, Parnell, C.E., C. Parnell, Frederiksen, J., Lapenta, G., Califano, Francesco, S. Markidis, Francesco Califano, Restante, A.L., Borremans, Kris, Giovanni Lapenta, Pierrard, V., Keppens, Rony, Šebek, Ondřej, Trier Frederiksen, Jacob, Susino, Roberto, Lapenta, Giovanni, Henri, P., Califano, F., J. Frederiksen, Pavel M. Trávníček, Travnıcek, P., Pierre Henri, Restante, Anna Lisa, Markidis, S., Henri, Pierre, Stefaan Poedts, Vyacheslav Olshevsky, Markidis, Stefano, Duncan H. Mackay, Poedts, S., R. Susino, Frederiksen, Jacob Trier, Nordlund, A., G. Lapenta, Sebek, O., Anna Lisa Restante, Trávníček, P.M., Roberto Susino, Poedts, Stefaan, Olshevsky, V., A. Nordlund, Matteo Faganello, Francesco Pegoraro, Trávníček, Pavel M   +84 more
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Alfvén Wave Connection between the Chromosphere and the Corona of the Sun: An Analytical Study

The Astrophysical Journal, 2023
Alfvén waves are closely relevant to the three outstanding problems in the solar corona: coronal heating, solar wind acceleration, and the fractionization of low first ionization potential (FIP) elements.
Jongchul Chae, Kyoung-Sun Lee
doaj   +1 more source

The Solar Corona [PDF]

Highlights of Astronomy, 1980
AbstractRecent observations from space have shown that the solar corona is spatially a very structured medium and temporally a very dynamic one. The consequent changes in the current theoretical ideas about coronal physics are reviewed. The role of the magnetic fields in shaping and heating the coronal structures is especially underlined.
openaire   +1 more source

Quasi-periodic modulation of solar and stellar flaring emission by magnetohydrodynamic oscillations in a nearby loop [PDF]

, 2006
We propose a new model for quasi-periodic modulation of solar and stellar flaring emission. Fast magnetoacoustic oscillations of a non-flaring loop can interact with a nearby flaring active region.
V. M. Nakariakov, Verwichte, E., Foullon, Claire, N. P. Young, Nakariakov, V.M., Young, N. P., Foullon, C. (Claire), Young, N.P., Verwichte, E. (Erwin), C. Foullon, E. Verwichte, Nakariakov, V. M. (Valery M.)   +11 more
core   +1 more source

Ion Charge States from a Global Time-dependent Wave-turbulence-driven Model of the Solar Wind: Comparison with in Situ Measurements

The Astrophysical Journal
Solar wind charge-state measurements contain a wealth of knowledge related to the properties of the solar corona from where they originated. However, their interpretation has remained challenging because it convolves coronal temperature, density, and ...
Pete Riley, Roberto Lionello, Yeimy J. Rivera   +2 more
doaj   +1 more source

Multiwavelength Observations of a B-class Flare Using XSM, AIA, and XRT

The Astrophysical Journal, 2023
We present multiwavelength observations by Chandrayaan-2/Solar X-ray Monitor, Solar Dynamics Observatory/Atmospheric Imaging Assembly, and Hinode/X-Ray Telescope (XRT) of a B-class flare observed on 2021 February 25, originating from an active region (AR
Yamini K. Rao, B. Mondal, Giulio Del Zanna, N. P. S. Mithun, S. V. Vadawale, K. K. Reeves, Helen E. Mason, Anil Bhardwaj   +7 more
doaj   +1 more source

Editorial to the Special Issue “Solar Wind Structures and Phenomena: Origins, Properties, Geoeffectiveness, and Prediction”

Universe, 2023
The heliosphere is filled with solar wind, which is formed due to the expansion of the plasma of hot solar corona [...]
Yuri I. Yermolaev, Vladimir A. Slemzin, Volker Bothmer   +2 more
doaj   +1 more source

Modulation of gyrosynchrotron emission in solar and stellar flares by slow magnetoacoustic oscillations [PDF]

, 2006
Gyrosynchrotron emission generated by non-thermal electrons in solar and stellar coronal flares can be efficiently modulated by slow magnetoacoustic oscillations in the flaring loops.
V. M. Nakariakov, V. F. Melnikov, Melnikov, V. F. (Victor Fedorovich), Nakariakov, V. M. (Valery M.)   +3 more
core   +1 more source

Suprathermal Electron Transport and Electron Beam Formation in the Solar Corona

The Astrophysical Journal, 2023
Electron beams that are commonly observed in the corona were discovered to be associated with solar flares. These “coronal” electron beams are found ≥300 Mm above the acceleration region and have velocities ranging from 0.1 c up to 0.6 c .
Bofeng Tang, Haihong Che, Gary P. Zank, Vladimir I. Kolobov   +3 more
doaj   +1 more source