Dynamics of large amplitude whistler WA VES and particle acceleration in the Earth's radiation belts
Bibliographic record
Abstract
Recent satellite observations have identified the presence of large amplitude whistler plasma waves in the Earth's radiation belts that propagate obliquely with respect to the Earth's magnetic field. Current studies suggest that these large amplitude whistlers are a mechanism for the rapid acceleration of radiation belt electrons to relativistic energies, within a fraction of a second. Previous efforts have been made to simulate these large amplitude whistlers and the resulting particle acceleration using a cold electron fluid model with test particles in the nonlinear wave fields (P. Yoon, Geophys. Res. Lett, 38, L12105 (2011)). We present results from a relativistic particle simulation with self-consistent electromagnetic fields to account for the feedback effects of the electrons on the large amplitude whistler wave. Beginning with a large amplitude cold electro n plasma wave that is consistent with the dispersion relation f or oblique whistler waves we compare the energization of self-consistent particles with that of non-interacting particles subject to the same wave. It is shown that the energy distributions of both test particle species follow a power-law over a certain energy range, with the self-consistent particles having a larger power index (steeper slope) than the non-interacting particles. After energization the self consistent particles reach a maximum energy on the order of 1MeV and the non-interacting particles about 8MeV, with energization occurring on time-scales on the order of 0.1msec seconds.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".