Zobrazeno 1 - 10
of 217
pro vyhledávání: '"J. T. Karpen"'
Publikováno v:
The Astrophysical Journal, Vol 965, Iss 1, p 6 (2024)
Spectral double power laws are common in solar high-energy phenomena such as flares and interplanetary energetic-electron events. However, the physical mechanism that produces the changes in power-law index within a single spectrum is unclear. We dev
Externí odkaz:
https://doaj.org/article/e9b4cc715b974503aad62cc0bc594f0d
Autor:
Nour E. Raouafi, G. Stenborg, D. B. Seaton, H. Wang, J. Wang, C. E. DeForest, S. D. Bale, J. F. Drake, V. M. Uritsky, J. T. Karpen, C. R. DeVore, A. C. Sterling, T. S. Horbury, L. K. Harra, S. Bourouaine, J. C. Kasper, P. Kumar, T. D. Phan, M. Velli
Publikováno v:
The Astrophysical Journal, Vol 945, Iss 1, p 28 (2023)
We present EUV solar observations showing evidence for omnipresent jetting activity driven by small-scale magnetic reconnection at the base of the solar corona. We argue that the physical mechanism that heats and drives the solar wind at its source i
Externí odkaz:
https://doaj.org/article/fdf3a4a6306c4020b680b8ac77dc1af4
We present a first-principles model of pitch-angle and energy distribution function evolution as particles are sequentially accelerated by multiple flare magnetic islands. Data from magnetohydrodynamic (MHD) simulations of an eruptive flare/coronal m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3a3b6eb08d5a3e44353d5b8d6ee03e78
http://arxiv.org/abs/2201.05564
http://arxiv.org/abs/2201.05564
Autor:
T. A. Kucera, M. Luna, T. Török, K. Muglach, J. T. Karpen, C. Downs, X. Sun, B. J. Thompson, H. R. Gilbert
Publikováno v:
The Astrophysical Journal. 940:34
Understanding the magnetic structure of filament channels is difficult but essential for identifying the mechanism (s) responsible for solar eruptions. In this paper we characterize the magnetic field in a well-observed filament channel with two inde
As one of the main formation mechanisms of solar filament formation, the chromospheric evaporation-coronal condensation model has been confirmed by numerical simulations to explain the formation of filament threads very well in flux tubes with single
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::28e78db4ab27f0dcd5a171095f9c7312
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.
Publikováno v:
Astrophysical journal, 2018, Vol.864(2), pp.165 [Peer Reviewed Journal]
Coronal jets and bright points occur prolifically in predominantly unipolar magnetic regions, such as coronal holes, where they appear above minority-polarity intrusions. Intermittent low-level reconnection and explosive, high-energy-release reconnec
Publikováno v:
The Astrophysical Journal
A prevalent but untested paradigm is often used to describe the prominence-cavity system: the cavity is under-dense because it is evacuated by supplying mass to the condensed prominence. The thermal non-equilibrium (TNE) model of prominence formation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b5d5f595e6d94633fbeb578d30917ba5
Publikováno v:
Magnetic Coupling between the Interior and Atmosphere of the Sun ISBN: 9783642028588
Cancelation of magnetic flux in the solar photosphere and chromosphere has been linked observationally and theoretically to a broad range of solar activity phenomena, from filament channel formation to CME initiation. Because cancelation is typically
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bf7bc62a317099e3cd17a5d2823b1550
https://doi.org/10.1007/978-3-642-02859-5_79
https://doi.org/10.1007/978-3-642-02859-5_79
Publikováno v:
Symposium - International Astronomical Union. 142:309-312
Several theoretical studies have proposed that, in response to photospheric foot-point motions, current sheets can be generated in the solar corona without the presence of a null point in the initial potential magnetic field. In these analytic models