Download Exploring the Secrets of the Aurora (2007)(2nd by Syun-Ichi Akasofu PDF

By Syun-Ichi Akasofu

Widespread development in technological know-how is unavoidably linked to controversies. therefore, younger researchers, particularly, need to how to persevere throughout the interval of controversy and fight for recognition. regrettably, the abilities wanted will not be taught in textbooks or monographs, which commonly describe the consensus of latest experts.This booklet, that is in accordance with my very own stories as a scientist, describes the background of the development made in auroral technological know-how and magnetospheric physics via supplying examples of principles, controversies, struggles, recognition, and good fortune in a few instances.Although no normal method (if any exists) is pointed out, i'm hoping that the reader will find out about the background of development in auroral technology and examples (right or improper) of facing the controversies.

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Extra info for Exploring the Secrets of the Aurora (2007)(2nd ed.)(en)(288s)

Example text

Geophys. , 78, 7257, 1973 The Function 21 other hand, this finding led to the discovery of the mantle flow (1973). Speaking of neutral hydrogen atoms, I should point out a common misconception, which is that a solar prominence is fully ionized plasma. Actually, it is only partially ionized plasma, because the observed prominence emissions are from neutral hydrogen atoms (the Balmer alpha line). Further, it is clear from the observations of exploding prominences that neutral hydrogen atoms can escape from the Sun before they become ionized.

The shock wave is generated when a high-speed solar plasma cloud or magnetic flux rope advances into the background slow-speed solar wind. It may also be noted that Chapman and Ferraro correctly envisioned the geometry of what we now call a high-speed stream from the coronal hole. However, it was unfortunate that Chapman was convinced by this success that a theory of the main phase of geomagnetic storms (namely, the formation of the ring current belt) should be built upon the Chapman–Ferraro theory, namely, the interaction between diamagnetic plasma and the Earth’s magnetic field.

36, 77, 1931 The Solar Wind 9 explained successfully the storm sudden commencement (SSC) as a result of the impact of the solar plasma on the Earth’s dipole field. In modern terms, the SSC is caused by the impact of a shock wave on the magnetosphere. The shock wave is generated when a high-speed solar plasma cloud or magnetic flux rope advances into the background slow-speed solar wind. It may also be noted that Chapman and Ferraro correctly envisioned the geometry of what we now call a high-speed stream from the coronal hole.

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