TY  - JOUR
A1  - Yoon, P. H.
A1  - Lopez, R. A.
A1  - Vafin, Sergei
A1  - Kim, S.
A1  - Schlickeiser, R.
T1  - Spontaneous emission of Alfvenic fluctuations
JF  - Plasma physics and controlled fusion
N2  - Low-frequency fluctuations are pervasively observed in the solar wind. The present paper theoretically calculates the steady state spectra of low-frequency electromagnetic (EM) fluctuations of the Alfvenic type for thermal equilibrium plasma. The analysis is based upon a recently formulated theory of spontaneously emitted EM fluctuations in magnetized thermal plasmas. It is found that the fluctuations in the magnetosonic mode branch is constant, while the kinetic Alfvenic mode spectrum is dependent on a form factor that is a function of perpendicular wave number. Potential applicability of the present work in the wider context of heliospheric research is also discussed.
KW  - spontaneous emission
KW  - kinetic Alfven
KW  - magnetosonic
Y1  - 2017
U6  - https://doi.org/10.1088/1361-6587/aa77c3
SN  - 0741-3335
SN  - 1361-6587
VL  - 59
PB  - IOP Publ. Ltd.
CY  - Bristol
ER  -