Sensitivity of solar wind mass flux to coronal temperature
Solar and Stellar Astrophysics
2021-06-02 v2 Space Physics
Abstract
Solar wind models predict that the mass flux carried away from the Sun in the solar wind should be extremely sensitive to the temperature in the corona, where the solar wind is accelerated. We perform a direct test of this prediction in coronal holes and active regions, using a combination of in-situ and remote sensing observations. For coronal holes, a 50% increase in temperature from 0.8 MK to 1.2 MK is associated with a tripling of the coronal mass flux. At temperatures over 2 MK, within active regions, this trend is maintained, with a four-fold increase in temperature corresponding to a 200-fold increase in coronal mass flux.
Keywords
Cite
@article{arxiv.2009.13918,
title = {Sensitivity of solar wind mass flux to coronal temperature},
author = {D. Stansby and L. Berčič and L. Matteini and C. J. Owen and R. French and D. Baker and S. T. Badman},
journal= {arXiv preprint arXiv:2009.13918},
year = {2021}
}
Comments
Accepted for publication in Astronomy & Astrophysics