Zobrazeno 1 - 10
of 104
pro vyhledávání: '"Pariat Etienne"'
Autor:
Joshi, Reetika, Aulanier, Guillaume, Radcliffe, Alice, van der Voort, Luc Rouppe, Pariat, Etienne, Nóbrega-Siverio, Daniel, Schmieder, Brigitte
Publikováno v:
A&A 687, A172 (2024)
Solar jets are collimated plasma flows moving along magnetic field lines and accelerated at low altitude following magnetic reconnection. Several of them originate from anemone-shaped low-lying arcades and the most impulsive ones tend to be relativel
Externí odkaz:
http://arxiv.org/abs/2404.13171
Autor:
Georgoulis Manolis K., Bloomfield D. Shaun, Piana Michele, Massone Anna Maria, Soldati Marco, Gallagher Peter T., Pariat Etienne, Vilmer Nicole, Buchlin Eric, Baudin Frederic, Csillaghy Andre, Sathiapal Hanna, Jackson David R., Alingery Pablo, Benvenuto Federico, Campi Cristina, Florios Konstantinos, Gontikakis Constantinos, Guennou Chloe, Guerra Jordan A., Kontogiannis Ioannis, Latorre Vittorio, Murray Sophie A., Park Sung-Hong, von Stachelski Samuel, Torbica Aleksandar, Vischi Dario, Worsfold Mark
Publikováno v:
Journal of Space Weather and Space Climate, Vol 11, p 39 (2021)
The European Union funded the FLARECAST project, that ran from January 2015 until February 2018. FLARECAST had a research-to-operations (R2O) focus, and accordingly introduced several innovations into the discipline of solar flare forecasting. FLAREC
Externí odkaz:
https://doaj.org/article/30ac247768104f16acced7f8204b51fc
Publikováno v:
Journal of Space Weather and Space Climate, Vol 7, p A17 (2017)
Solar flares and coronal mass ejections (CMEs) are among the most energetic events in the solar system, impacting the near-Earth environment. Flare productivity is empirically known to be correlated with the size and complexity of active regions. Sev
Externí odkaz:
https://doaj.org/article/7eda23303cbc4856a3b7ae5c8d22eba5
Autor:
Liu, Yang, Welsch, Brian T., Valori, Gherardo, Georgoulis, Manolis K., Guo, Yang, Pariat, Etienne, Park, Sung-Hong, Thalmann, Julia K.
Magnetic free energy powers solar flares and coronal mass ejections (CMEs), and the buildup of magnetic helicity might play a role in the development of unstable structures that subsequently erupt. To better understand the roles of energy and helicit
Externí odkaz:
http://arxiv.org/abs/2211.09990
Autor:
Valori, Gherardo, Löschel, Philipp, Stansby, David, Pariat, Etienne, Hirzberger, Johann, Chen, Feng
Spectropolarimetric reconstructions of the photospheric vector magnetic field are intrinsically limited by the so-called 180$^\circ$ ambiguity in the orientation of the transverse component. The successful launch and operation of Solar Orbiter has ma
Externí odkaz:
http://arxiv.org/abs/2112.10650
Autor:
Valori, Gherardo, Démoulin, Pascal, Pariat, Etienne, Yeates, Anthony, Moraitis, Kostas, Linan, Luis
Publikováno v:
A&A 643, A26 (2020)
Relative magnetic helicity is conserved by magneto-hydrodynamic evolution even in the presence of moderate resistivity. For that reason, it is often invoked as the most relevant constraint to the dynamical evolution of plasmas in complex systems, suc
Externí odkaz:
http://arxiv.org/abs/2008.00968
Publikováno v:
A&A 636, A41 (2020)
Based on a decomposition of the magnetic field into potential and nonpotential components, magnetic energy and relative helicity can both also be decomposed into two quantities: potential and free energies, and volume-threading and current-carrying h
Externí odkaz:
http://arxiv.org/abs/2003.01698
We demonstrate the sensitivity of magnetic energy and helicity computations regarding the quality of the underlying coronal magnetic field model. We apply the method of Wiegelmann & Inhester (2010) to a series of SDO/HMI vector magnetograms, and disc
Externí odkaz:
http://arxiv.org/abs/1907.01179
Relative magnetic helicity is a gauge invariant quantity suitable for the study of the magnetic helicity content of heliospheric plasmas. Relative magnetic helicity can be decomposed uniquely into two gauge invariant quantities, the magnetic helicity
Externí odkaz:
http://arxiv.org/abs/1809.03765
The relative magnetic helicity is a quantity that is often used to describe the level of entanglement of non-isolated magnetic fields, such as the magnetic field of solar active regions.The aim of this paper is to investigate how different kinds of p
Externí odkaz:
http://arxiv.org/abs/1807.00532