Astronomy and Astrophysics – Astronomy
Scientific paper
Jun 1997
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997itps...25..409f&link_type=abstract
IEEE Trans. Plasma Sci., Vol. 25, No. 3, p. 409 - 414
Astronomy and Astrophysics
Astronomy
2
History Of Astronomy: Biography, Alfven Waves
Scientific paper
Hannes Alfvén, Lifetime Fellow of IEEE and 1970 Nobel Laureate for Physics, passed away on April 2, 1995 after a life of exceptional scientific achievement. His discoveries laid the foundations of major parts of modern plasma physics and its applications in areas as diverse as industrial processes, thermonuclear research, space physics, astrophysics, and cosmology. His most fundamental discoveries were those which opened a, new field of physics, magnetohydrodynamics, and provided plasma physics with powerful new tools. His discovery of a new kind of waves, now called Alfvén waves, was initially met with disbelief and accepted only years later. With the evolution of plasma physics, and especially space plasma physics, the significance of this discovery has grown to the extent that Alfvén waves, and related terms such as Alfvén velocity, Alfvén number, etc., have become among the most frequently used terms in plasma physics. His introduction of the guiding center concept vastly simplified the analysis of charged particle motion in electric and magnetic fields. In addition to his most fundamental discoveries, Hannes Alfvén made numerous important contributions to the physics of the magnetosphere, especially auroras and magnetic storms, as well as to solar and interplanetary physics, astrophysics, and cosmology. Finally, it is worth emphasizing that Hannes Alfvén contributed to the progress of science not only by his own work but also by the extraordinary inspiration that he gave to his many students as well as to colleagues all over the world.
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