Small-Scale Plasma Fluctuations in Fast and Slow Solar Wind Streams

— This study gives a comparison of characteristics of small-scale ion flux fluctuations based on measurements of the SPEKTR-R spacecraft in slow and fast solar wind streams. Fast quasi-stationary streams and fast disturbed streams, associated with transient phenomena in the solar corona, are conside...

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Veröffentlicht in:Cosmic research 2019-11, Vol.57 (6), p.434-442
Hauptverfasser: Riazantseva, M. O., Rakhmanova, L. S., Zastenker, G. N., Yermolaev, Yu. I., Lodkina, I. G., Chesalin, L. S.
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container_end_page 442
container_issue 6
container_start_page 434
container_title Cosmic research
container_volume 57
creator Riazantseva, M. O.
Rakhmanova, L. S.
Zastenker, G. N.
Yermolaev, Yu. I.
Lodkina, I. G.
Chesalin, L. S.
description — This study gives a comparison of characteristics of small-scale ion flux fluctuations based on measurements of the SPEKTR-R spacecraft in slow and fast solar wind streams. Fast quasi-stationary streams and fast disturbed streams, associated with transient phenomena in the solar corona, are considered separately. The use of high-time-resolution data from the Bright Monitor of Solar Wind (BMSW) instrument makes it possible to analyze plasma fluctuations in a wide range of scales, including small scales, where kinetic effects can make a significant contribution. It is shown in the study that the nature of small-scale fluctuations can significantly differ in fast streams with the same mean solar wind velocity but having a different nature.
doi_str_mv 10.1134/S0010952519060078
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source Springer Online Journals
subjects Astronomy
Astrophysics and Astroparticles
Astrophysics and Cosmology
Corona
Fluctuations
Ion flux
Physics
Physics and Astronomy
Solar corona
Solar wind
Solar wind velocity
Space Exploration and Astronautics
Space Sciences (including Extraterrestrial Physics
Spacecraft
Streams
Wind speed
Wind velocities
title Small-Scale Plasma Fluctuations in Fast and Slow Solar Wind Streams
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