The Russian astrophysicists have theoretically modelled coronal loop oscillations and have shown that the plasma present in coronal loops is quite "normal". So, the puzzle of the Sun`s atmosphere heating remains unresolved.
Coronal loops, immense magnetic arches more hot and dense than the coronal gas, are formed by magnetic fields. They are anchored in the Sun`s visible surface rising up to 100 - 200 thousand kilometres. In the active regions of the Sun these loops, which are 1000 - 3000 kilometres in diameter, form bunches and tangles.
In 1998 the American Transition Region and Coronal Explorer (TRACE) spacecraft with the imaging telescope onboard has been launched. Images of hot coronal loops were obtained and researchers observed oscillations of coronal loops near the epicentre of a solar flare. But these oscillations were damped quickly within a few oscillation periods in the way the process occurred not in the rare coronal plasma but in the rather viscous environment resembling honey.
Tatiana Pitchugina | alfa
Researchers watch quantum knots untie
23.10.2019 | Aalto University
Deuteron-like heavy dibaryons -- a step towards finding exotic nuclei
22.10.2019 | Tata Institute of Fundamental Research
After first reporting the existence of quantum knots, Aalto University & Amherst College researchers now report how the knots behave
A quantum gas can be tied into knots using magnetic fields. Our researchers were the first to produce these knots as part of a collaboration between Aalto...
Researchers have succeeded in creating an efficient quantum-mechanical light-matter interface using a microscopic cavity. Within this cavity, a single photon is emitted and absorbed up to 10 times by an artificial atom. This opens up new prospects for quantum technology, report physicists at the University of Basel and Ruhr-University Bochum in the journal Nature.
Quantum physics describes photons as light particles. Achieving an interaction between a single photon and a single atom is a huge challenge due to the tiny...
A very special kind of light is emitted by tungsten diselenide layers. The reason for this has been unclear. Now an explanation has been found at TU Wien (Vienna)
It is an exotic phenomenon that nobody was able to explain for years: when energy is supplied to a thin layer of the material tungsten diselenide, it begins to...
Researchers at Ludwig-Maximilians-Universitaet (LMU) in Munich have explored the initial consequences of the interaction of light with molecules on the surface of nanoscopic aerosols.
The nanocosmos is constantly in motion. All natural processes are ultimately determined by the interplay between radiation and matter. Light strikes particles...
Particles that are mere nanometers in size are at the forefront of scientific research today. They come in many different shapes: rods, spheres, cubes, vesicles, S-shaped worms and even donut-like rings. What makes them worthy of scientific study is that, being so tiny, they exhibit quantum mechanical properties not possible with larger objects.
Researchers at the Center for Nanoscale Materials (CNM), a U.S. Department of Energy (DOE) Office of Science User Facility located at DOE's Argonne National...
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