Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Petra Kohutova"'
Autor:
Petra Kohutova, A. Popovas
Solar coronal loops are commonly subject to oscillations. Observations of coronal oscillations are used to infer physical properties of the coronal plasma using coronal seismology. Excitation and evolution of oscillations in coronal loops is typicall
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d36f0d5813253f0e06e4d1b65be09ec0
Publikováno v:
Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, EDP Sciences, 2020, 633, pp.L6. ⟨10.1051/0004-6361/201937144⟩
Astronomy and Astrophysics-A&A, EDP Sciences, 2020, 633, pp.L6. ⟨10.1051/0004-6361/201937144⟩
Torsional Alfv\'en waves are promising candidates for transport of energy across different layers of the solar atmosphere and have been theoretically predicted for decades. Previous detections of Alfv\'en waves so far have however mostly relied on in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::343636903eb9b372761c8849675dac31
http://hdl.handle.net/10852/75655
http://hdl.handle.net/10852/75655
Autor:
Vasco Manuel de Jorge Henriques, Clara Froment, L. Rouppe van der Voort, Patrick Antolin, Petra Kohutova
Publikováno v:
Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, EDP Sciences, 2020, 633, pp.A11. ⟨10.1051/0004-6361/201936717⟩
Astronomy and Astrophysics-A&A, EDP Sciences, 2020, 633, pp.A11. ⟨10.1051/0004-6361/201936717⟩
Thermal non-equilibrium (TNE) is a phenomenon that can occur in solar coronal loops when the heating is quasi-constant and highly-stratified. Under such heating conditions, coronal loops undergo cycles of evaporation and condensation. The recent obse
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7efc3117f942a96970493d8fe15308b1
https://hal-insu.archives-ouvertes.fr/insu-02893432/document
https://hal-insu.archives-ouvertes.fr/insu-02893432/document
Autor:
Jayant Joshi, Daniel Nóbrega-Siverio, Vasco Manuel de Jorge Henriques, Clara Froment, H. Skogsrud, Ada Ortiz, Göran B. Scharmer, Eamon Scullion, C. Quintero Noda, Milan Gošić, Georgios Chintzoglou, Mats Carlsson, R. Timmons, Lucia Kleint, Pia Zacharias, Tiago M. D. Pereira, T. Leifsen, M. M. Woods, Viggo Hansteen, Mikolaj Szydlarski, Petra Kohutova, Juan Martinez-Sykora, Gregal J. M. Vissers, Souvik Bose, Ainar Drews, David Graham, Shahin Jafarzadeh, A. Sainz Dalda, D. Schmit, A. Popovas, L. Rouppe van der Voort, J. de la Cruz Rodríguez, B. De Pontieu
Publikováno v:
Astronomy & Astrophysics
NASA's Interface Region Imaging Spectrograph (IRIS) provides high resolution observations of the solar atmosphere through UV spectroscopy and imaging. Since the launch of IRIS in June 2013, we have conducted systematic observation campaigns in coordi
Publikováno v:
Space Weather. 14:802-818
This study demonstrates two significant ways of improving persistence forecasts of the solar wind, which exploit the relatively unchanging nature of the ambient solar wind to provide 27 day forecasts, when using data from the Lagrangian L1 point. Suc
Autor:
Petra Kohutova, Erwin Verwichte
Publikováno v:
Proceedings of the International Astronomical Union. 13:23-25
We present numerical MHD simulations of the dynamics of cool plasma condensations in a coronal loop. We address 2 mechanisms for how coronal rain leads to the excitation of coronal loop oscillations. We find that the combined effect of pressure gradi
Publikováno v:
Astronomy & Astrophysics. 630:A123
Coronal rain consists of cool plasma condensations formed in coronal loops as a result of thermal instability. The standard models of coronal rain formation assume that the heating is quasi-steady and localised at the coronal loop footpoints. We pres
Autor:
Petra Kohutova, Erwin Verwichte
Context\ud \ud Coronal rain composed of cool plasma condensations falling from coronal heights is a phenomenon occurring in footpoint-heated coronal loops as a result of thermal instability. High-resolution coronal rain observations suggest that cond
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0f24ec03d3b60a0acba17dd85b16f4d5
http://wrap.warwick.ac.uk/87485/7/WRAP-dynamics-plasma-condensations-gravitationally-loop-Verwichte-2018.pdf
http://wrap.warwick.ac.uk/87485/7/WRAP-dynamics-plasma-condensations-gravitationally-loop-Verwichte-2018.pdf
Publikováno v:
Astronomy & Astrophysics
E.V. acknowledges support from the Warwick STFC Consolidated Grant ST/L000733/I. P.A. acknowledges support from the EU Horizon 2020 Research and Innovation programme (grant agreement No. 647214). P.K. acknowledges support from a UK STFC PhD studentsh
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d6f34dd4a6aed557994603d1194693a4
https://hdl.handle.net/10023/9777
https://hdl.handle.net/10023/9777
Autor:
Erwin Verwichte, Petra Kohutova
Coronal rain composed of cool plasma condensations falling from coronal heights along magnetic field lines is a phenomenon occurring mainly in active region coronal loops. Recent high resolution observations have shown that coronal rain is much more
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f802ebbef7e8a3cb0b8ee464bb19e8b2
http://wrap.warwick.ac.uk/79759/7/WRAP_1459206-px-060716-cr_paper.pdf
http://wrap.warwick.ac.uk/79759/7/WRAP_1459206-px-060716-cr_paper.pdf