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Relativistic electron response to the combined magnetospheric impact of a coronal mass ejection overlapping with a high-speed stream: Van Allen Probes observations

Journal Article · · Journal of Geophysical Research. Space Physics
DOI:https://doi.org/10.1002/2015JA021395· OSTI ID:1467364
 [1];  [2];  [3];  [4];  [5];  [1];  [6];  [7];  [2];  [2];  [2];  [1];  [5];  [3];  [8];  [9]
  1. NASA Goddard Space Flight Center (GSFC), Greenbelt, MD (United States)
  2. Univ. of Colorado, Boulder, CO (United States). Lab. for Atmospheric and Space Physics
  3. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  4. Univ. of California, Los Angeles, CA (United States). Dept. of Atmospheric and Oceanic Sciences
  5. Aerospace Corporation, Los Angeles, CA (United States)
  6. NASA Goddard Space Flight Center (GSFC), Greenbelt, MD (United States); Univ. of Maryland, College Park, MD (United States). Dept. of Astronomy. Center for Research and Exploration in Space Science & Technology (CRESST)
  7. NASA Goddard Space Flight Center (GSFC), Greenbelt, MD (United States); The Catholic Univ. of America, Washington, DC (United States). Physics Dept.
  8. Univ. of New Hampshire, Durham, NH (United States). Inst. for Study of Earth, Oceans, and Space
  9. Univ. of Iowa, Iowa City, IA (United States). Dept. of Physics and Astronomy
During early November 2013, the magnetosphere experienced concurrent driving by a coronal mass ejection (CME) during an ongoing high-speed stream (HSS) event. The relativistic electron response to these two kinds of drivers, i.e., HSS and CME, is typically different, with the former often leading to a slower buildup of electrons at larger radial distances, while the latter energizing electrons rapidly with flux enhancements occurring closer to the Earth. In this paper, we present a detailed analysis of the relativistic electron response including radial profiles of phase space density as observed by both Magnetic Electron and Ion Sensor (MagEIS) and Relativistic Electron Proton Telescope instruments on the Van Allen Probes mission. Data from the MagEIS instrument establish the behavior of lower energy (<1 MeV) electrons which span both intermediary and seed populations during electron energization. Measurements characterizing the plasma waves and magnetospheric electric and magnetic fields during this period are obtained by the Electric and Magnetic Field Instrument Suite and Integrated Science instrument on board Van Allen Probes, Search Coil Magnetometer and Flux Gate Magnetometer instruments on board Time History of Events and Macroscale Interactions during Substorms, and the low-altitude Polar-orbiting Operational Environmental Satellites. These observations suggest that during this time period, both radial transport and local in situ processes are involved in the energization of electrons. Finally, the energization attributable to radial diffusion is most clearly evident for the lower energy (<1 MeV) electrons, while the effects of in situ energization by interaction of chorus waves are prominent in the higher-energy electrons.
Research Organization:
Aerospace Corporation, Los Angeles, CA (United States); Los Alamos National Lab. (LANL), Los Alamos, NM (United States); NASA Goddard Space Flight Center (GSFC), Greenbelt, MD (United States); Univ. of California, Los Angeles, CA (United States); Univ. of Colorado, Boulder, CO (United States)
Sponsoring Organization:
National Aeronautics and Space Administration (NASA) (United States); National Science Foundation (NSF) (United States); USDOE
Grant/Contract Number:
AC52-06NA25396
OSTI ID:
1467364
Report Number(s):
LA-UR--15-28237
Journal Information:
Journal of Geophysical Research. Space Physics, Journal Name: Journal of Geophysical Research. Space Physics Journal Issue: 9 Vol. 120; ISSN 2169-9380
Publisher:
American Geophysical UnionCopyright Statement
Country of Publication:
United States
Language:
English

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Cited By (8)

Radiation belt electron acceleration during the 17 March 2015 geomagnetic storm: Observations and simulations: Radiation Belt Electron Acceleration journal June 2016
Highly relativistic radiation belt electron acceleration, transport, and loss: Large solar storm events of March and June 2015: HIGHLY RELATIVISTIC ELECTRON DYNAMICS journal July 2016
Prompt acceleration of magnetospheric electrons to ultrarelativistic energies by the 17 March 2015 interplanetary shock: RAPID ELECTRON ACCELERATION BY IP SHOCK journal August 2016
CIMI simulations with newly developed multiparameter chorus and plasmaspheric hiss wave models: CIMI SIMULATIONS journal September 2017
The Complex Space Weather Events of September 2017 posted_content September 2019
Variation of Radiation Belt Electron Flux During CME‐ and CIR‐Driven Geomagnetic Storms: Van Allen Probes Observations journal August 2019
On the Acceleration Mechanism of Ultrarelativistic Electrons in the Center of the Outer Radiation Belt: A Statistical Study journal November 2019
From solar sneezing to killer electrons: outer radiation belt response to solar eruptions
  • Daglis, Ioannis A.; Katsavrias, Christos; Georgiou, Marina
  • Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, Vol. 377, Issue 2148 https://doi.org/10.1098/rsta.2018.0097
journal May 2019

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