Radial evolution of nonthermal electron populations in the low-latitude solar wind: Helios, Cluster, and Ulysses Observations

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F09%3A00331561" target="_blank" >RIV/67985815:_____/09:00331561 - isvavai.cz</a>

Alternative codes found

RIV/68378289:_____/09:00331561

Result on the web

—

DOI - Digital Object Identifier

—

Result language

angličtina

Original language name

Radial evolution of nonthermal electron populations in the low-latitude solar wind: Helios, Cluster, and Ulysses Observations

Original language description

We provide a statistical study of solar wind electron velocity distribution functions (eVDFs) acquired on several spacecraft in low ecliptic latitudes within heliocentric range from 0.3 up to 4 AU. We focus on the non-thermal properties of eVDFs in the slow and fast solar wind regimes. The aim of the present work is to provide an analytical model to fit separately all three components of observed solar wind eVDFs (i.e., the core, the halo, and the strahl) and to study their fractional densities and alsothe non-Maxwellian character of high-energy eVDF tails. Our results indicates that halo and strahl relative densities vary in an opposite way. The relative number of strahl electrons is decreasing with radial distance while the relative number of halo electrons is increasing. The fractional density of the core population remains roughly constant. These findings confirm that there are mechanisms in the solar wind that scatter strahl electrons into the halo.

Czech name

—

Czech description

—

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BL - Plasma physics and discharge through gases

OECD FORD branch

—

Project

—

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2009

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of Geophysical Research

ISSN

0148-0227

e-ISSN

—

Volume of the periodical

114

Issue of the periodical within the volume

-

Country of publishing house

US - UNITED STATES

Number of pages

15

Pages from-to

—

UT code for WoS article

000265932600001

EID of the result in the Scopus database

—