Zobrazeno 1 - 10
of 99
pro vyhledávání: '"Dudík, Jaroslav"'
The slowly positively drifting bursts (SPDBs) are rarely observed in radio emission of solar flares. To understand how the SPDBs are generated, we studied the radio observations at 600--5000 MHz together with the imaging observations made in ultravio
Externí odkaz:
http://arxiv.org/abs/2408.12218
Autor:
Mondal, Biswajit, Athiray, P. S., Winebarger, Amy R., Savage, Sabrina L., Kobayashi, Ken, Bradshaw, Stephen, Barnes, Will, Champey, Patrick R., Cheimets, Peter, Dudik, Jaroslav, Golub, Leon, Mason, Helen E., McKenzie, David E., Moore, Christopher S., Madsen, Chad, Reeves, Katharine K., Testa, Paola, Vigil, Genevieve D., Warren, Harry P., Walsh, Robert W., Del Zanna, Giulio
Nanoflares are thought to be one of the prime candidates that can heat the solar corona to its multi-million kelvin temperature. Individual nanoflares are difficult to detect with the present generation instruments, however their presence can be infe
Externí odkaz:
http://arxiv.org/abs/2402.05036
The KAPPA package is designed for calculations of optically thin spectra for the non-Maxwellian \k{appa}-distributions. This paper presents extension of the database to allow calculations of the spectra for extreme values of \k{appa} < 2, which are i
Externí odkaz:
http://arxiv.org/abs/2310.04591
Autor:
Dudik, Jaroslav, Aulanier, Guillaume, Kasparova, Jana, Karlicky, Marian, Zemanova, Alena, Lorincik, Juraj, Druckmuller, Miloslav
We report on interaction of the legs of the erupting filament of 2012 August 31 and associated prominent supra-arcade downflows (P-SADs) as observed by the Atmospheric Imaging Assembly onboard the Solar Dynamics Observatory. We employ a number of ima
Externí odkaz:
http://arxiv.org/abs/2209.00306
We analyze spectra of a slipping flare kernel observed during the 2015 June 22 M6.5-class flare by the Interface Region Imaging Spectrograph (IRIS). During the impulsive and peak phases of the flare, loops exhibiting an apparent slipping motion along
Externí odkaz:
http://arxiv.org/abs/2206.10114
Arcades of flare loops form as a consequence of magnetic reconnection powering solar flares and eruptions. We analyse the morphology and evolution of flare arcades that formed during five well-known eruptive flares. We show that the arcades have a co
Externí odkaz:
http://arxiv.org/abs/2102.10858
Publikováno v:
2020ApJ...905..111Z
We present multispectral analysis (radio, H$\alpha$, UV/EUV, and hard X-ray) of a confined flare from 2015 March 12. This flare started within the active region NOAA 12 297 and then it expanded into a large preexisting magnetic rope embedded with a c
Externí odkaz:
http://arxiv.org/abs/2101.08633
Autor:
Dudík, Jaroslav, Del Zanna, Giulio, Rybák, Ján, Lörinčík, Juraj, Dzifčáková, Elena, Mason, Helen E., Tomczyk, Steven, Galloy, Michael
Accurate measurements of electron density are critical for determination of the plasma properties in the solar corona. We compare the electron densities diagnosed from Fe XIII lines observed by the Extreme-Ultraviolet Imaging Spectrometer (EIS) onboa
Externí odkaz:
http://arxiv.org/abs/2011.09175
We report on the Atmospheric Imaging Assembly (AIA) observations of plasma outflows originating in a coronal dimming during the 2015 April 28th filament eruption. After the filament started to erupt, two flare ribbons formed, one of which had a well-
Externí odkaz:
http://arxiv.org/abs/2010.04250
We perform plasma diagnostics, including that of the non-Maxwellian $\kappa$-distributions, in several structures observed in the solar corona by the Extreme-Ultraviolet Imaging Spectrometer (EIS) onboard the Hinode spacecraft. To prevent uncertainti
Externí odkaz:
http://arxiv.org/abs/2003.07091