Bild

Is the AKR Cyclotron Maser Instability a self-organized criticality system?

    M. MAREK, R. SCHREIBER

Planetary Radio Emissions VIII, pp. 269-278, 2018/08/16

Proceedings of the 8th International Workshop on Planetary, Solar and Heliospheric Radio Emissions held at Seggauberg near Graz, Austria, October 25–27, 2016

doi: 10.1553/PRE8s269

doi: 10.1553/PRE8s269

€  82,– 

incl. VAT

PDF
X
BibTEX-Export:

X
EndNote/Zotero-Export:

X
RIS-Export:

X 
Researchgate-Export (COinS)

Permanent QR-Code

doi:10.1553/PRE8s269



doi:10.1553/PRE8s269

Abstract

Data gathered by the POLRAD swept frequency radiospectrograph (Interball–2 mission) have been used for a preliminary analysis of a number of short bursts of the Auroral Kilometric Radiation (AKR) as a function of their intensity. The AKR intensity samples consisted of data snapshots integrated over 6 ms time periods. The histograms based on 53 data sets, containing up to several thousand samples, exhibit a power–law fall for higher intensities, characteristic for Self–Organized Criticality (SOC). The scaling parameter α varies for most cases between 2 and 3 with the dominant value 2.5, and an error of the order of 0.1. The SOC approach has already been used for an interpretation of some magnetospheric processes, but never for AKR.