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quadratic field strength

(a measure of a star's varying magnetic field)

A star's quadratic field strength is a measure of its magnetic field that is used when the field is changing with time. It is the root mean square of measurements (e.g., using the Zeeman effect) taken over time.


(magnetism,physics,measure,stars)
https://en.wikipedia.org/wiki/Glossary_of_astronomy#Quadratic_field_strength
http://adsabs.harvard.edu/abs/2009MNRAS.394.1338B

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