July 27, 2015 to August 21, 2015
Nordita, Stockholm
Europe/Stockholm timezone

Lower hybrid waves in magnetic reconnection regions

Aug 10, 2015, 2:25 PM
FD5 (Nordita, Stockholm)


Nordita, Stockholm

Oral Workshop, August 10-14 Post-noon I


Ms Cecilia Norgren (Swedish Institute of Space Physics)


Lower hybrid waves in magnetic reconnection regions Lower hybrid waves are strong plasma waves that are often excited within thin boundaries that form in the vicinity of magnetic reconnection regions. These waves can be excited by sharp gradients in the density that can form along the separatrices or at the front of reconnection jets. The wave length scale is on the order of the electron gyroradius, which makes it hard to study them in detail. In this study, we present a new single spacecraft method that correlates the wave electric and magnetic fields to decide the velocity of the waves in the plane perpendicular to the background magnetic field. From the velocity, the length scale and electrostatic potential can be inferred. We apply this method to magnetic reconnection events in different regions of the magnetosphere. We investigate if the waves can have impact on the magnetic reconnection process or serve as a diagnostic tool, providing additional knowledge about the magnetic reconnection region.

Primary author

Ms Cecilia Norgren (Swedish Institute of Space Physics)


Dr Andris Vaivads (Swedish Institute of Space Physics) Prof. Mats André (Swedish Institute of Space Physics) Dr Yuri Khotyaintsev (Swedish Institute of Space Physics)

Presentation materials