Differential flow between protons and alphas in the solar wind: Prognoz 7 observations

1994 ◽  
Vol 99 (A12) ◽  
pp. 23503 ◽  
Author(s):  
Y. I. Yermolaev ◽  
G. N. Zastenker
Keyword(s):  
Solar Wind ◽  
Differential Flow

scholarly journals Dependence of Ion Temperatures on Alpha–Proton Differential Flow Vector and Heating Mechanisms in the Solar Wind

2020 ◽  
Vol 889 (1) ◽  
pp. L14
Author(s):  
G. Q. Zhao ◽  
H. Q. Feng ◽  
D. J. Wu ◽  
J. Huang ◽  
Y. Zhao ◽  
...  
Keyword(s):  
Solar Wind ◽  
Flow Vector ◽  
Differential Flow

Ulysses near-ecliptic observations of differential flow between protons and alphas in the solar wind

1994 ◽  
Vol 99 (A2) ◽  
pp. 2505 ◽  
Author(s):  
M. Neugebauer ◽  
B. E. Goldstein ◽  
S. J. Bame ◽  
W. C. Feldman
Keyword(s):  
Solar Wind ◽  
Differential Flow

scholarly journals Effects of Alpha–Proton Differential Flow on Proton Temperature Anisotropy Instabilities in the Solar Wind: Wind Observations

2019 ◽  
Vol 884 (1) ◽  
pp. 60 ◽  
Author(s):  
G. Q. Zhao ◽  
H. Li ◽  
H. Q. Feng ◽  
D. J. Wu ◽  
H. B. Li ◽  
...  
Keyword(s):  
Solar Wind ◽  
Temperature Anisotropy ◽  
Proton Temperature ◽  
Differential Flow

scholarly journals LIMITS ON ALPHA PARTICLE TEMPERATURE ANISOTROPY AND DIFFERENTIAL FLOW FROM KINETIC INSTABILITIES: SOLAR WIND OBSERVATIONS

2013 ◽  
Vol 777 (1) ◽  
pp. L3 ◽  
Author(s):  
Sofiane Bourouaine ◽  
Daniel Verscharen ◽  
Benjamin D. G. Chandran ◽  
Bennett A. Maruca ◽  
Justin C. Kasper
Keyword(s):  
Solar Wind ◽  
Alpha Particle ◽  
Particle Temperature ◽  
Temperature Anisotropy ◽  
Differential Flow ◽  
Kinetic Instabilities

Differential flow between solar wind protons and alpha particles: First WIND observations

1996 ◽  
Vol 23 (10) ◽  
pp. 1183-1186 ◽  
Author(s):  
J. T. Steinberg ◽  
A. J. Lazarus ◽  
K. W. Ogilvie ◽  
R. Lepping ◽  
J. Byrnes
Keyword(s):  
Solar Wind ◽  
Alpha Particles ◽  
Differential Flow

scholarly journals STOCHASTIC HEATING, DIFFERENTIAL FLOW, AND THE ALPHA-TO-PROTON TEMPERATURE RATIO IN THE SOLAR WIND

2013 ◽  
Vol 776 (1) ◽  
pp. 45 ◽  
Author(s):  
B. D. G. Chandran ◽  
D. Verscharen ◽  
E. Quataert ◽  
J. C. Kasper ◽  
P. A. Isenberg ◽  
...  
Keyword(s):  
Solar Wind ◽  
Temperature Ratio ◽  
Stochastic Heating ◽  
Proton Temperature ◽  
Differential Flow

scholarly journals Electromagnetic Proton Beam Instabilities in the Inner Heliosphere: Energy Transfer Rate, Radial Distribution and Effective Excitation

2021 ◽  
Author(s):  
Wen Liu ◽  
Jinsong Zhao ◽  
Huasheng Xie ◽  
Dejin Wu
Keyword(s):  
Solar Wind ◽  
Energy Transfer ◽  
Proton Beam ◽  
Transfer Rate ◽  
Ion Beam ◽  
Beam Instability ◽  
Energy Transfer Rate ◽  
Differential Flow ◽  
Effective Growth ◽  
Inner Heliosphere

<p>Differential flow among different ion species are always observed in the solar wind, and such ion differential flow can provide a free energy to drive the Alfven/ion-cyclotron and fast-magnetosonic/whistler instabilities. Previous works on the ion beam instability are mainly focused on the solar wind parameters at 1 au. We extend this study using the radial model of the magnetic field and plasma parameters in the inner heliosphere. We present the distributions of the energy transfer rate among the unstable waves and the particles, which would be useful to predict the change of parallel and perpendicular temperatures during the instability evolution. Moreover, we propose an effective growth length to estimate the effective growth in each instability, and we explore that the oblique Alfven/ion-cyclotron instability, the oblique fast-magnetosonic/whistler instability and the oblique Alfven/ion-beam instability can be effectively driven by proton beams having speed of 500-2000 km/s in the solar atmosphere. We also show that the unstable waves driven by the proton beam instability would be responsible for the solar corona heating. These predictions can be checked by in situ satellite measurements in the inner heliosphere.</p>

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