Do We Know Enough About Magnetospheric Plasma Waves to Model Where and Under What Conditions ~10 keV to ~5 MeV Magnetospheric Electrons Will Precipitate into The Ionosphere?

Tsurutani, Bruce

Do We Know Enough About Magnetospheric Plasma Waves to Model Where and Under What Conditions ~10 keV to ~5 MeV Magnetospheric Electrons Will Precipitate into The Ionosphere?

Wednesday, 13 February 2019

Fountain III/IV (Westin Pasadena)

Bruce Tsurutani, NASA Jet Propulsion Laboratory, Pasadena, CA, United States, Gurbax Singh Lakhina, Indian Institute of Geomagnetism (IIG), Navi Mumbai, India, Rajkumar Hajra, Spideal, Co. Galway, Ireland, Remya Bhanu, Indian Institute of Geomagnetism, Navi Mumbai, India and Anthony J Mannucci, NASA, Pasadena, CA, United States

Abstract:

It has only been recently found that outer zone (L > 6) chorus and EMIC waves and inner zone (L < 6) plasmaspheric hiss are all coherent within their generation regions (and sometimes away from these regions). Pitch angle “transport” of energetic electrons by cyclotron resonance with these coherent waves are three order of magnitude faster (Lakhina et al. 2010; Bellan, 2013) than with incoherent waves as previously addressed by Kennel and Petschek (1966) and Tsurutani and Lakhina (1997). This talk will discuss when and where the waves are coherent and what precipitation features one should expect. This talk will emphasize the physics and the verification of the physics which must be established before any simulation model can be made.