Radial variation of whistler-mode chorus: First results from the STAFF/DWP instrument on board the Double Star TC-1 spacecraft

45Citations
Citations of this article
6Readers
Mendeley users who have this article in their library.

Abstract

We use the first measurements of the STAFF/DWP instrument on the Double Star TC-1 spacecraft to investigate whistler-mode chorus. We present initial results of a systematic study on radial variation of dawn chorus. The chorus events show an increased intensity at L parameter above 6. This is important for the possible explanation of intensifications of chorus, which were previously observed closer to the Earth at higher latitudes. Our results also indicate that the upper band of chorus at frequencies above one-half of the electron cyclotron frequency disappears for L above 8. The lower band of chorus is observed at frequencies below 0.4 of the electron cyclotron frequency up to L of 11-12. The maxima of the chorus power spectra are found at slightly lower frequencies compared to previous studies. We do not observe any distinct evolution of the position of the chorus frequency band as a function of L. More data of the TC-1 spacecraft are needed to verify these initial results and to increase the MLT coverage. © European Geosciences Union 2005.

Cite

CITATION STYLE

APA

Santolík, O., Macúšová, E., Yearby, K. H., Cornilleau-Wehrlin, N., & Alleyne, H. S. C. K. (2005). Radial variation of whistler-mode chorus: First results from the STAFF/DWP instrument on board the Double Star TC-1 spacecraft. Annales Geophysicae, 23(8), 2937–2942. https://doi.org/10.5194/angeo-23-2937-2005

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free