Zobrazeno 1 - 10
of 315
pro vyhledávání: '"Veronig, Astrid M."'
Autor:
Collier, Hannah, Hayes, Laura A., Purkhart, Stefan, Krucker, Säm, Ryan, Daniel F., Polito, Vanessa, Veronig, Astrid M., Harra, Louise K., Berghmans, David, Kraaikamp, Emil, Dominique, Marie, Dolla, Laurent R., Verbeeck, Cis
Aims: This paper aims to demonstrate the importance of short-exposure extreme ultraviolet (EUV) observations of solar flares in the study of particle acceleration, heating and energy partition in flares. This work highlights the observations now avai
Externí odkaz:
http://arxiv.org/abs/2411.09319
Autor:
Podladchikova, Tatiana, Jain, Shantanu, Veronig, Astrid M., Purkhart, Stefan, Chikunova, Galina, Dissauer, Karin, Dumbovic, Mateja
This study examines the relationship between early solar coronal mass ejection (CME) propagation, the associated filament eruption, and coronal dimming in the rare event observed on March 28, 2022, which featured a three-part CME in the low corona of
Externí odkaz:
http://arxiv.org/abs/2410.20603
Autor:
Jain, Shantanu, Podladchikova, Tatiana, Veronig, Astrid M., Chikunova, Galina, Dissauer, Karin, Dumbovic, Mateja, Razquin, Amaia
On May 8, 2024, solar active region 13664 produced an X-class flare, several M-class flares, and multiple Earth-directed Coronal Mass Ejections (CMEs). The initial CME caused coronal dimmings, characterized by localized reductions in extreme-ultravio
Externí odkaz:
http://arxiv.org/abs/2410.18549
Autor:
Ronca, Giulia M., Chikunova, Galina, Dissauer, Karin, Podladchikova, Tatiana, Veronig, Astrid M.
Coronal dimmings are regions of reduced emission in the lower corona, observed after coronal mass ejections (CMEs) and representing their footprints. In order to investigate the long-term evolution of coronal dimming and its recovery, we propose two
Externí odkaz:
http://arxiv.org/abs/2410.02585
Autor:
Battaglia, Andrea Francesco, Krucker, Säm, Veronig, Astrid M., Stiefel, Muriel Zoë, Warmuth, Alexander, Benz, Arnold O., Ryan, Daniel F., Collier, Hannah, Harra, Louise
In general, large solar flares are more efficient at accelerating high-energy electrons than microflares. Nonetheless, we sometimes observe microflares that accelerate electrons to high energies. We statistically characterize 39 microflares with stri
Externí odkaz:
http://arxiv.org/abs/2409.14466
Publikováno v:
A&A 690, A60 (2024)
Aims. The space radiation environment conditions and the maximum expected coronal mass ejection (CME) speed are being assessed through the investigation of scaling laws between the peak proton flux and fluence of Solar Energetic Particle (SEP) events
Externí odkaz:
http://arxiv.org/abs/2407.16479
Autor:
Purkhart, Stefan, Veronig, Astrid M., Kliem, Bernhard, Jarolim, Robert, Dissauer, Karin, Dickson, Ewan C. M., Podladchikova, Tatiana, Krucker, Säm
We studied the rapid filament evolution in AR 12975 during a confined C2 flare on 28 March 2022, which led to an eruptive M4 flare 1.5 h later. It is characterized by the breakup of the filament, the disappearance of its southern half, and the flow o
Externí odkaz:
http://arxiv.org/abs/2407.07777
Coronal jets are believed to be the miniature version of large-scale solar eruptions. In particular, the eruption of a mini-filament inside the base arch is suggested to be the trigger and even driver of blowout jets. Here we propose an alternative t
Externí odkaz:
http://arxiv.org/abs/2406.02783
Filament eruptions often lead to coronal mass ejections (CMEs) on the Sun and are one of the most energetic eruptive phenomena in the atmospheres of other late-type stars. However, the detection of filament eruptions and CMEs on stars beyond the sola
Externí odkaz:
http://arxiv.org/abs/2405.13671
Autor:
Kurt, Victoria G., Veronig, Astrid M., Fleishman, Gregory D., Hinterreiter, Jürgen, Tschernitz, Johannes, Lysenko, Alexandra L.
Publikováno v:
A&A 686, A195 (2024)
The 2003 October 28 (X17.2) eruptive flare was a unique event. The coronal electric field and the {\pi}-decay {\gamma}-ray emission flux had the highest values ever inferred in solar flares. This study reveals physical links between the magnetic reco
Externí odkaz:
http://arxiv.org/abs/2403.08135