What is it about?
Alfven waves come out of Sun as a result of energy redistribution due to a variety of processes . These solar plasma waves reach L1 point and modifies the magnetic environment at the first Lagrangian point which gets reflected in the magnetic field measurements. Co-relating these measurements with solar wind particle velocities provide the signatures of solar Alfven waves.
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Why is it important?
The Alfven (plasma) wave detection give clues about the processes taking place in or near the Sun. These processes in the extreme cases have the potential to alter the space weather in the vicinity of Earth thereby affecting the life at Earth. Hence, it is of utmost importance to have a continuous monitoring of the solar wind as well as the waves coming out from the Sun.
Perspectives
I enjoyed writing this article as there are no coauthors so I started from the scratch collecting important data-sets, analyzing, preparing plots and inferring the scientific outcomes. In the next work, I would like to go little further with characterization of the detected waves.
Dr Vipin K Yadav
Space Physics Laboratory, Vikram Sarabhai Space Centre
Read the Original
This page is a summary of: Alfvèn wave detection at first Lagrangian point with magnetic field measurements, IETE Technical Review, November 2018, Taylor & Francis,
DOI: 10.1080/02564602.2018.1541767.
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