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Switch-off slow shock/rotational discontinuity structures in collisionless magnetic reconnection: What to look for in satellite observations

Innocenti, M. E., Cazzola, E., Mistry, R., Eastwood, J. P., Goldman, M. V., Newman, D. L., Markidis, S. and Lapenta, G. (2017) Switch-off slow shock/rotational discontinuity structures in collisionless magnetic reconnection: What to look for in satellite observations Geophysical Research Letters, 44 (8). pp. 3447-3455.

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Abstract

In Innocenti et al. (2015) we have observed and characterized for the first time Petschek‐like switch‐off slow shock/rotational discontinuity (SO‐SS/RD) compound structures in a 2‐D fully kinetic simulation of collisionless magnetic reconnection. Observing these structures in the solar wind or in the magnetotail would corroborate the possibility that Petschek exhausts develop in collisionless media as a result of single X point collisionless reconnection. Here we highlight their signatures in simulations with the aim of easing their identification in observations. The most notable signatures include a four‐peaked ion current profile in the out‐of‐plane direction, associated ion distribution functions, increased electron and ion anisotropy downstream the SS, and increased electron agyrotropy downstream the RDs.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Mathematics
Authors :
NameEmailORCID
Innocenti, M. E.
Cazzola, E.e.cazzola@surrey.ac.uk
Mistry, R.
Eastwood, J. P.
Goldman, M. V.
Newman, D. L.
Markidis, S.
Lapenta, G.
Date : 21 March 2017
DOI : 10.1002/2017GL073092
Uncontrolled Keywords : Magnetic reconnection; Hall reconnection; Petschek exhaust; Slow shock/rotational discontinuity; Ion distribution functions; Anisotropy and agyrotropy
Depositing User : Clive Harris
Date Deposited : 21 Sep 2018 09:14
Last Modified : 21 Sep 2018 09:14
URI: http://epubs.surrey.ac.uk/id/eprint/849388

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