Results 11 to 20 of about 112,391 (274)
Five Solar Cycles of Solar Corona Investigations. [PDF]
Sol Phys, 2022 AbstractThese are the memoirs of fifty years of research in solar physics, closely related to the history of three of the major solar space missions, from the Solar Maximum Mission, SMM, to Solar Orbiter, at present in navigation toward vantage points closer and closer to the Sun.
Antonucci E.
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Heating mechanisms of the solar corona. [PDF]
Proc Jpn Acad Ser B Phys Biol Sci, 2017 The solar corona is a tenuous outer atmosphere of the Sun. Its million-degree temperature was discovered spectroscopically in the 1940s, but its origin has been debated since then without complete convergence. Currently there are two classes of models; the wave theory and the microflare/nanoflare theory.
Sakurai T.
europepmc +4 more sources
EUV imaging and spectroscopy for improved space weather forecasting
Journal of Space Weather and Space Climate, 2020 Accurate predictions of harmful space weather effects are mandatory for the protection of astronauts and other assets in space, whether in Earth or lunar orbit, in transit between solar system objects, or on the surface of other planetary bodies. Because
Golub Leon +8 more
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Coronal spectral diagnostics: The coronal solar magnetism observatory (COSMO)
Frontiers in Astronomy and Space Sciences, 2022 The Need: Understanding and predicting the major phenomena taking place in the solar corona, such as flares and Coronal Mass Ejections (CMEs), the heating and evolution of the solar atmosphere, and the acceleration of the solar wind, are fundamental ...
Enrico Landi +9 more
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Slow solar wind acceleration through the middle corona: Spacecraft radio studies
Frontiers in Astronomy and Space Sciences, 2022 The “Middle Corona”, defined by recent consensus as the region spanning 1.5–6 solar radii (R⊙, heliocentric), is an important zone through which several structural and dynamic changes occur in coronal streamer regions. Among these is a regime change from
David B. Wexler +3 more
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Structure and Dynamics of the 13/14 November 2012 Eclipse White-Light Corona [PDF]
, 2014 Continuing our series of observations of the motion and dynamics of the solar corona over the solar-activity cycle, we observed the corona from sites in Queensland, Australia, during the 13 (UT)/14 (local time) November 2012 total solar eclipse.
Babcock, Bryce A. +11 more
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Astronomy & Astrophysics, 2023 Context. Vortex flows have been found in the photosphere, chromosphere, and low corona in observations and simulations. It has been suggested that vortices play an important role in channeling energy and plasma into the corona. However, the impact of vortex flows on the corona has not been studied directly in a realistic setup. Aims. We investigate the
C. Breu +3 more
openaire +5 more sources
The Magnetic Field in the Solar Atmosphere [PDF]
, 2014 This publication provides an overview of magnetic fields in the solar atmosphere with the focus lying on the corona. The solar magnetic field couples the solar interior with the visible surface of the Sun and with its atmosphere.
Solanki, Sami K. +2 more
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The Astrophysical Journal, 2023 We investigate the origin of mesoscale structures in the solar wind called microstreams, defined as enhancements in the solar wind speed and temperature that last several hours.
Bahaeddine Gannouni +2 more
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Posteruptive phenomena in coronal mass ejections and substorms: Indicators of a universal process? [PDF]
, 2008 [1] We examine phenomena associated with eruptions in the two different regimes of the solar corona and the terrestrial magnetosphere. We find striking similarities between the speeds of shrinking magnetic field lines in the corona and dipolarization ...
Guild, T. B. +10 more
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