Zobrazeno 1 - 10
of 495
pro vyhledávání: '"Valery M Nakariakov"'
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-11 (2024)
Abstract Mutual conversion of various kinds of magnetohydrodynamic (MHD) waves can have profound impacts on wave propagation, energy transfer, and heating of the solar chromosphere and corona. Mode conversion occurs when an MHD wave travels through a
Externí odkaz:
https://doaj.org/article/623cf8642a0f4aca81953620517e7be0
Autor:
Martin O. Archer, Vyacheslav A. Pilipenko, Bo Li, Kareem Sorathia, Valery M. Nakariakov, Tom Elsden, Katariina Nykyri
Publikováno v:
Frontiers in Astronomy and Space Sciences, Vol 11 (2024)
Sharp boundaries are a key feature of space plasma environments universally, with their wave-like motion (driven by pressure variations or flow shears) playing a key role in mass, momentum, and energy transfer. This review summarises magnetohydrodyna
Externí odkaz:
https://doaj.org/article/96ff8f02ee1b4639809d7d0ca00f91ce
Autor:
Sihui Zhong, Valery M. Nakariakov, Dmitrii Y. Kolotkov, Lakshmi Pradeep Chitta, Patrick Antolin, Cis Verbeeck, David Berghmans
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-11 (2023)
Abstract Decayless kink oscillations of plasma loops in the solar corona may contain an answer to the enigmatic problem of solar and stellar coronal heating. The polarisation of the oscillations gives us a unique information about their excitation me
Externí odkaz:
https://doaj.org/article/54166b5121da480aa3ef1bd3fba86ff0
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-12 (2023)
Abstract The energy balance in the corona of the Sun is the key to the long-standing coronal heating dilemma, which could be potentially revealed by observational studies of decayless kink oscillations of coronal plasma loops. A bundle of very long o
Externí odkaz:
https://doaj.org/article/2ad33742d3e347d0a67d0ce5803cdc08
Publikováno v:
Physics, Vol 5, Iss 1, Pp 193-204 (2023)
The back-reaction of the perturbed thermal equilibrium in the solar corona on compressive perturbations, also known as the effect of wave-induced thermal misbalance, is known to result in thermal instabilities chiefly responsible for the formation of
Externí odkaz:
https://doaj.org/article/e3a2b9836e4e41679274112c3374e4a6
Publikováno v:
The Astrophysical Journal Supplement Series, Vol 274, Iss 2, p 31 (2024)
Quasiperiodic pulsations (QPP) are often detected in solar and stellar flare lightcurves. These events may contain valuable information about the underlying fundamental plasma dynamics as they are not described by the standard flare model. The detect
Externí odkaz:
https://doaj.org/article/01dc2eeb6ca7437ab2b6b612f651b4a1
Autor:
Hamish A. S. Reid, Sophie Musset, Daniel F. Ryan, Vincenzo Andretta, Frédéric Auchère, Deborah Baker, Federico Benvenuto, Philippa Browning, Éric Buchlin, Ariadna Calcines Rosario, Steven D. Christe, Alain Jody Corso, Joel Dahlin, Silvia Dalla, Giulio Del Zanna, Carsten Denker, Jaroslav Dudík, Robertus Erdélyi, Ilaria Ermolli, Lyndsay Fletcher, Andrzej Fludra, Lucie M. Green, Mykola Gordovskyy, Salvo L. Guglielmino, Iain Hannah, Richard Harrison, Laura A. Hayes, Andrew R. Inglis, Natasha L. S. Jeffrey, Jana Kašparová, Graham S. Kerr, Christian Kintziger, Eduard P. Kontar, Säm Krucker, Timo Laitinen, Philippe Laurent, Olivier Limousin, David M. Long, Shane A. Maloney, Paolo Massa, Anna Maria Massone, Sarah Matthews, Tomasz Mrozek, Valery M. Nakariakov, Susanna Parenti, Michele Piana, Vanessa Polito, Melissa Pesce-Rollins, Paolo Romano, Alexis P. Rouillard, Clementina Sasso, Albert Y. Shih, Marek Stęślicki, David Orozco Suárez, Luca Teriaca, Meetu Verma, Astrid M. Veronig, Nicole Vilmer, Christian Vocks, Alexander Warmuth
Publikováno v:
Aerospace, Vol 10, Iss 12, p 1034 (2023)
Particle acceleration is a fundamental process arising in many astrophysical objects, including active galactic nuclei, black holes, neutron stars, gamma-ray bursts, accretion disks, solar and stellar coronae, and planetary magnetospheres. Its ubiqui
Externí odkaz:
https://doaj.org/article/7de951d7474e42deb96132d1967570a2
Publikováno v:
Universe, Vol 9, Iss 2, p 95 (2023)
The transition from the large-amplitude rapidly-decaying regime of kink oscillations of plasma loops observed in the corona of the Sun to the low-amplitude decayless oscillations is modelled. In this study, the decayless regime is associated with the
Externí odkaz:
https://doaj.org/article/93b0a83b23b648459505aa3cf011f33b
Autor:
Kyung-Suk Cho, Pankaj Kumar, Il-Hyun Cho, Maria S. Madjarska, Valery M. Nakariakov, Eun-Kyung Lim, Wenda Cao, Vasyl Yurchyshyn, Xu Yang, Sung-Hong Park
Publikováno v:
The Astrophysical Journal, Vol 953, Iss 1, p 69 (2023)
Plumes are bright structures in coronal holes extending from the solar surface into the corona and are considered as a possible source of the solar wind. Plumes are thought to be rooted in strong unipolar photospheric flux patches (network/plage regi
Externí odkaz:
https://doaj.org/article/eb18351f34e446debf5ee3b7a04828c9
Publikováno v:
The Astrophysical Journal, Vol 944, Iss 1, p 16 (2023)
Quasi-periodic pulsation (QPP) is a common phenomenon in solar flares. Studying QPP is important to further our understanding of the physical processes operating in flares. However, detection of QPP is complicated by the presence of noise in flaring
Externí odkaz:
https://doaj.org/article/6abd4ab69c044f17b575f50668c32f4b