| Autor: |
Hu, Qiang, Zank, Gary P., Li, Gang, Ao, Xianzhi |
| Předmět: |
|
| Zdroj: |
AIP Conference Proceedings; Jun2013, Vol. 1539 Issue 1, p175-178, 4p, 4 Graphs |
| Abstrakt: |
We calculate the power spectra densities of magnetic field fluctuations associated with interplanetary shock waves at 1AU, utilizing in-situ magnetic field measurements from spacecraft ACE and Wind. We derive related quantities both upstream and downstream of a shock as a function of time/distance away from the shock passage. We present results for a few events that exhibit clear upstream enhanced wave activity. We show that mostly they are of Alfvénic nature and confined within certain distance upstream. We also present a preliminary analysis of turbulence-particle interaction based on spectral analysis results. Implications of such analysis to turbulence transport models are also discussed. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
|
