CAII lines in a quiet region on the Sun I. Dynamic processes in the solar atmosphere

نویسندگان

چکیده

We have studied oscillation processes in the quiet Sun outside a coronal hole at different levels of solar chromosphere. The study was based on spectroscopic observations ionized calcium lines (K, H, and 849.8 nm) obtained by Sayan Solar Observatory’s Automated Telescope (AST). Spectral analysis time series for some parameters has been carried out. compared results this work with our regions located base hole. power found to be higher region At same time, under there is common tendency decrease height all frequency ranges, except low-frequency one, most chromospheric structures. In structures weak magnetic field, increases lower chromosphere decreases somewhat upper

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Magnetic Coupling in the Quiet Solar Atmosphere

Three kinds of magnetic couplings in the quiet solar atmosphere are highlighted and discussed, all fundamentally connected to the Lorentz force. First the coupling of the convecting and overshooting fluid in the surface layers of the Sun with the magnetic field. Here, the plasma motion provides the dominant force, which shapes the magnetic field and drives the surface dynamo. Progress in the un...

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ژورنال

عنوان ژورنال: ????????-?????? ??????

سال: 2023

ISSN: ['2712-9640']

DOI: https://doi.org/10.12737/szf-92202302