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Summary: A reconnection-driven rarefaction wave model for coronal outflows
S. J. Bradshaw
Department of Physics and Astronomy, Rice University, Houston, TX 77005, USA
stephen.bradshaw@rice.edu
and
G. Aulanier
LESIA, Observatoire de Paris, CNRS, UPMC, Universit´e Paris Diderot, 5 place Jules Janssen,
92190 Meudon, France
and
G. Del Zanna
DAMTP, Centre for Mathematical Sciences, Wilberforce Road, Cambridge, CB3 0WA, UK
Received ; accepted
For submission to the Astrophysical Journal
2
ABSTRACT
We conduct numerical experiments to determine whether interchange reconnec-
tion at high altitude coronal null points can explain the outflows observed as blue-
shifts in coronal emission lines at the boundaries between open and closed magnetic
field regions. In this scenario, a strong, post-reconnection pressure gradient forms
in the field-aligned direction when dense and hot, active region core loops reconnect
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