arXiv
Open Access
2025
Observations of Transition from Imbalanced to Balanced Kinetic Alfvénic Turbulence
Jinsong Zhao
Trevor A. Bowen
Stuart D. Bale
Chen Shi
Thierry Dudok de Wit
+1 lainnya
Abstrak
We report observations of solar wind turbulence derived from measurements by the Parker Solar Probe. Our findings reveal the emergence of finite magnetic helicity within the transition range of the turbulence, aligning with signatures of kinetic Alfvén waves (KAWs). Notably, as the wave scale transitions from super-ion to sub-ion scales, the ratio of KAWs with opposing signs of magnetic helicity initially increases from approximately 1 to 6.5 before returning to 1. This observation provides, for the first time, compelling evidence for the transition from imbalanced kinetic Alfvénic turbulence to balanced kinetic Alfvénic turbulence.
Topik & Kata Kunci
Penulis (6)
J
Jinsong Zhao
T
Trevor A. Bowen
S
Stuart D. Bale
C
Chen Shi
T
Thierry Dudok de Wit
N
Nikos Sioulas
Akses Cepat
Informasi Jurnal
- Tahun Terbit
- 2025
- Bahasa
- en
- Sumber Database
- arXiv
- Akses
- Open Access ✓