[IGPP Everyone] *CORRECTION* SPACE PHYSICS FALL SEMINAR: October 11th, 2019 - Microphysics of ion and electron energization in the topside ionosphere: Results from CASSIOPE/e-POP (Y. Shen, U. Calgary)

[Emmanuel V. Masongsong]

SPACE PHYSICS SEMINAR 

DEPARTMENT OF EARTH, PLANETARY, AND SPACE SCIENCES 

DEPARTMENT OF ATMOSPHERIC AND OCEANIC SCIENCES 

UNIVERSITY OF CALIFORNIA, LOS ANGELES 




Microphysics of ion and electron energization in the topside ionosphere: 
Results from CASSIOPE/e-POP 








Yangyang Shen, University of Calgary 



Ionospheric ion (mainly O+) and electron energization and field-aligned transport are critical processes of magnetosphere-ionosphere-thermosphere coupling. The Canadian Enhanced Polar Outflow Probe (e-POP) satellite carries particle and field instruments specifically designed to study micro-scale characteristics of ion energization and outflow processes in the topside (325-1,500 km) ionosphere. The Suprathermal Electron/Ion Imager (SEI) instrument onboard e-POP has the capability of resolving two-dimensional low-energy (from sub-eV to 325 eV) particle distributions at time scales of up to 10 ms, or spatial scales of less than 100 m. This talk aims to present several discoveries resulting from direct measurements of particles and waves from e-POP. In particular, we will focus on observations and test particle simulations of transverse O+ ion heating from broadband extremely low frequency (BBELF) waves in the collisional ionosphere. We will also show the first direct observations of suprathermal (tens to hundreds of eV) electron acceleration perpendicular to the magnetic field in the topside ionosphere. 



Friday, October 11 th , 2019 

Room 6704 Geology 

3:30 - 5:00 PM 




In Charge 

M. Velli 

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