Spectral Diagnostics of Cool Flare Loops Observed by the SST. I. Inversion of the Ca parallel to 8542 angstrom and H beta Lines

0520545 - ASÚ 2020 RIV US eng J - Článek v odborném periodiku
Koza, J. - Kuridze, D. - Heinzel, Petr - Jejčič, S. - Morgan, H. - Zapiór, Maciej
Spectral Diagnostics of Cool Flare Loops Observed by the SST. I. Inversion of the Ca parallel to 8542 angstrom and H beta Lines.
Astrophysical Journal. Roč. 885, č. 2 (2019), č. článku 154. ISSN 0004-637X. E-ISSN 1538-4357
Grant CEP: GA ČR(CZ) GA19-17102S
Institucionální podpora: RVO:67985815
Klíčová slova: solar activity * solar flare spectra * stellar flares
Obor OECD: Astronomy (including astrophysics,space science)
Impakt faktor: 5.746, rok: 2019
Způsob publikování: Omezený přístup
https://doi.org/10.3847/1538-4357/ab4426

In this paper we employ unique observations of the SOL2017-09-10T16:06 X8.2-class flare which produced an extended arcade of loops. The Swedish 1 m Solar Telescope made a series of spectral images of the cool off-limb loops in the Ca ii & xfffd 8542 ? and the hydrogen H? lines. Our focus is on the loop apices. Non-local thermal equilibrium (non-LTE - i.e., departures from LTE) spectral inversion is achieved through the construction of extended grids of models covering a realistic range of plasma parameters.
Trvalý link: http://hdl.handle.net/11104/0305205