@article{Guo:2018:10.1038/s41550-018-0461-9,
author = {Guo, RL and Yao, ZH and Wei, Y and Ray, LC and Rae, IJ and Arridge, CS and Coates, AJ and Delamere, PA and Sergis, N and Kollmann, P and Grodent, D and Dunn, WR and Waite, JH and Burch, JL and Pu, ZY and Palmaerts, B and Dougherty, MK},
doi = {10.1038/s41550-018-0461-9},
journal = {Nature Astronomy},
pages = {640--645},
title = {Rotationally driven magnetic reconnection in Saturn's dayside},
url = {http://dx.doi.org/10.1038/s41550-018-0461-9},
volume = {2},
year = {2018}
}

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TY  - JOUR
AB  - Magnetic reconnection is a key process that explosively accelerates charged particles, generating phenomena such as nebular flares1, solar flares2 and stunning aurorae3. In planetary magnetospheres, magnetic reconnection has often been identified on the dayside magnetopause and in the nightside magnetodisc, where thin-current-sheet conditions are conducive to reconnection4. The dayside magnetodisc is usually considered thicker than the nightside due to the compression of solar wind, and is therefore not an ideal environment for reconnection. In contrast, a recent statistical study of magnetic flux circulation strongly suggests that magnetic reconnection must occur throughout Saturn’s dayside magnetosphere5. Additionally, the source of energetic plasma can be present in the noon sector of giant planetary magnetospheres6. However, so far, dayside magnetic reconnection has only been identified at the magnetopause. Here, we report direct evidence of near-noon reconnection within Saturn’s magnetodisc using measurements from the Cassini spacecraft. The measured energetic electrons and ions (ranging from tens to hundreds of keV) and the estimated energy flux of ~2.6 mW m–2 within the reconnection region are sufficient to power aurorae. We suggest that dayside magnetodisc reconnection can explain bursty phenomena in the dayside magnetospheres of giant planets, which can potentially advance our understanding of quasi-periodic injections of relativistic electrons6 and auroral pulsations7.
AU  - Guo,RL
AU  - Yao,ZH
AU  - Wei,Y
AU  - Ray,LC
AU  - Rae,IJ
AU  - Arridge,CS
AU  - Coates,AJ
AU  - Delamere,PA
AU  - Sergis,N
AU  - Kollmann,P
AU  - Grodent,D
AU  - Dunn,WR
AU  - Waite,JH
AU  - Burch,JL
AU  - Pu,ZY
AU  - Palmaerts,B
AU  - Dougherty,MK
DO  - 10.1038/s41550-018-0461-9
EP  - 645
PY  - 2018///
SN  - 2397-3366
SP  - 640
TI  - Rotationally driven magnetic reconnection in Saturn's dayside
T2  - Nature Astronomy
UR  - http://dx.doi.org/10.1038/s41550-018-0461-9
UR  - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000440524400019&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR  - http://hdl.handle.net/10044/1/63596
VL  - 2
ER  - 

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