solar flares tagged posts

Figure 2: This shows the restoring force against the growth of fluctuations. When the amplitude is lower than the threshold value, the amplitude approaches zero and is stable (black). Separating from the center, when the amplitude exceeds the threshold value, the amplitude abruptly grows red. Credit: National Institutes of Natural Sciences

In the Large Helical Device (LHD) at the National Institute for Fusion Science in Japan, researchers have developed the high-energy heavy ion beam probe, in order to perform potential measurement inside plasma that was generated in the LHD and have clarified the mechanism of this new phenomenon.

Seeking to achieve nuclear fusion, research on plasma of >100,000,000 C is being conducted around the world...

The four identical spacecraft of NASA’s Magnetospheric Multiscale, or MMS, mission (one of which is illustrated here) fly through the boundaries of Earth’s magnetic field to study an explosive process of magnetic reconnection. Thought to be the driver behind everything from solar flares to aurora, magnetic reconnection creates a sudden reconfiguration of magnetic fields, releasing huge amounts of energy in the process. Credit: NASA’s Goddard Space Flight Center

Just under four months into the science phase of the mission, NASA’s Magnetospheric Multiscale, or MMS, is delivering promising early results on magnetic reconnection—a magnetic explosion that’s related to everything from the northern lights to solar flares...

(Left) Hinode observation of a developing sunspot. An elongated bright feature called a ‘light bridge’ appears between the merging pores (darkest parts). (Right) Computer simulation of sunspot formation. A light bridge resembling the one observed is formed between the pores. (Credit: NAOJ/JAXA/LMSAL/NASA)

Sunspots are planet-sized conglomerates of bundles of intense magnetic field lines on the surface of the Sun. They are known to cause solar flares which can directly impact our technological infrastructure. Shin Toriumi’s team analyzed observations of sunspots as they formed taken by Hinode, the Solar Dynamics Observatory (SDO) and the Interface Region Imaging Spectrograph (IRIS) satellites.

The team modeled the observations using state-of-the-art numerical simulations performed on the Pl...