# PotentialExtrapolator¶

class solarbextrapolation.extrapolators.PotentialExtrapolator(map_magnetogram, **kwargs)[source]

This is a greens function for extrapolating the potential (scalar) field above a given magnetogram. Equations are from the following book:

Title: Physics of the Solar Corona
Author: T. J. M. Boyd and J. J. Sanderson
Publisher: Springer Books and Praxis Publishing
ISBN: 978-3-540-30766-2

See chapter 5 on potential fields. Which references to the paper Takashi Sakurai 1982: http://adsabs.harvard.edu/full/1982SoPh…76..301S