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  Information - ST4.6 Pc1 Pearl Waves: Discovery, Morphology and Physics

Event Information
This session is devoted to Pc1 waves which are electromagnetic waves of space origin with the frequencies of about one hertz. These waves were discovered 70 years ago during the Second Polar Year, but until now their origin and properties remain mysterious in many respects. Ground based and satellite observations show that Pc1 waves play an important role in the system of solar-terrestrial relations. In addition Pc1 represents a very beautiful natural phenomenon attracting still the attention of many researchers all over the world. In this session it is proposed to discuss widely the history of the discovery of pearls, their properties, and the physical ideas concerning the origin of pearls.

The main topics of the session where the contributions are welcome are as follows:

1. History

1.1. Discovery of Pc1
1.2. Progress in the study of Pc1
1.3. Contributions by Eyvind Sucksdorff, Leiv Harang and Hannes Alfven

2. Morphology

2.1. Classification and nomenclature
2.2. Ground based observations
2.3. Satellite observations
2.4. Pc1 in the system of solar-terrestrial relations

3. Physics

3.1. Propagation of Pc1 waves
3.2. Excitation of Pc1
3.3. Ponderomotive forces due to Pc1
3.4. Interpretation of Pc1 properties

4. Miscellaneous topics

4.1. Pc1 and Space Weather
4.2. Pc1 and geological prospecting
4.3. Pc1 and bio-electromagnetic effects
4.4. Pc1 and earthquakes

Journal of Atmospheric and Solar-Terrestrial Physics is interested in publishing a special issue on this topic if there is sufficient interest among contributing authors. (See also the link: Publication)

Preliminary List of Solicited Speakers
Carl-Gunne Fälthammar: Discovery of magnetohydrodynamic waves
Anatol Guglielmi: Pc1 waves in the system of solar-terrestrial relations
Kalevi Mursula: Satellite observations of pearl waves
Rickard Lundin: Ponderomotive forces due to Pc1
Andrei Demekhov: Recent progress in understanding of pearl formation
Christopher Russell: Upstream and downstream waves in subsonic and supersonic flowing plasmas


General Statement
The information contained hereafter has been compiled and uploaded by the Session Organizers via the "Organizer Session Form". The Session Organizers have therefore the sole responsibility that this information is true and accurate at the date of publication, and the conference organizer cannot accept any legal responsibility for any errors or omissions that may be made, and he makes no warranty, expressed or implied, with regard to the material published.

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