Results 1 to 10 of about 2,148 (181)
The Astrophysical Journal, 2022 A challenge in characterizing active region (AR) coronal heating is in separating transient (bursty) loop heating from the diffuse background (steady) heating.
Sanjiv K. Tiwari +4 more
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The First Flight of the Marshall Grazing Incidence X-Ray Spectrometer (MaGIXS)
The Astrophysical Journal, 2023 The Marshall Grazing Incidence X-ray Spectrometer (MaGIXS) sounding rocket experiment launched on 2021 July 30 from the White Sands Missile Range in New Mexico.
Sabrina L. Savage +37 more
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The Astrophysical Journal, 2023 We begin here a series of papers examining the chromospheric and coronal properties of solar active regions. This first paper describes an extensive data set of images from the Atmospheric Imaging Assembly on the Solar Dynamics Observatory curated for ...
Karin Dissauer +2 more
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The Astrophysical Journal, 2023 High-resolution spectral observations of the lower solar atmosphere (chromosphere and transition region) during coronal heating events, in combination with predictions from models of impulsively heated loops, provide powerful diagnostics of the ...
Paola Testa +3 more
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THE ROLE OF RADIO WAVE PROPAGATION EFFECTS IN THE SOLAR CORONA TO INTERPRET THE BEHIND-LIMB BURSTS
Radio Physics and Radio Astronomy, 2016 Purpose: The radio emission propagation of solar radio bursts in the solar corona which sources are located on the far side of the Sun relative to the observer on Earth is studied.
A. A. Stanislavsky
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Co-existence of two plasma phases in solar and AGN coronas [PDF]
Serbian Astronomical Journal, 1998 Here we have juxtaposed two distant cosmic locations of the Sun and AGN where neutral hydrogen appears in a close connection with hot coronas. Besides the solar photosphere, chromosphere and prominences where the presence of neutral hydrogen is ...
Kubičela A. +4 more
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Extracting the Temperature of a Coronal Loop in the Solar Active Region 11092 [PDF]
Iranian Journal of Astronomy and Astrophysics, 2018 Extracting the temperature of coronal loops is effective in the analysis of solar active region's loops and helps in better understanding of coronal events.
Narges Fathalian
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Nature Communications, 2018 The solar corona heating mechanism is still subject to debate. Here, the authors report that impulsive reconnection can give rise to an active region corona that is compatible with extreme-ultraviolet observations.
Kai E. Yang +3 more
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Evolution of Elemental Abundances in Hot Active Region Cores from Chandrayaan-2 XSM Observations
The Astrophysical Journal, 2023 The first ionization potential (FIP) bias, whereby elemental abundances for low-FIP elements in different coronal structures vary from their photospheric values and may also vary with time, has been widely studied.
Biswajit Mondal +7 more
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The Astrophysical Journal, 2023 Coronal mass ejections (CMEs) can generate the most severe geomagnetic disturbances. One of the most critical factors affecting a CME’s geoeffectiveness is its trajectory. It is crucial to determine whether and when CME will hit Earth.
Grzegorz Michalek +3 more
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