SOLAR WIND DENSITY SPECTRA AROUND THE ION SPECTRAL BREAK

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F15%3A10319435" target="_blank" >RIV/00216208:11320/15:10319435 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1088/0004-637X/803/2/107" target="_blank" >http://dx.doi.org/10.1088/0004-637X/803/2/107</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/0004-637X/803/2/107" target="_blank" >10.1088/0004-637X/803/2/107</a>

Result language

angličtina

Original language name

SOLAR WIND DENSITY SPECTRA AROUND THE ION SPECTRAL BREAK

Original language description

This paper presents a large statistical analysis of approximate to 5800 frequency spectra of the solar wind density fluctuations in the range 0.001-5 Hz (corresponding to spatial scales of 100-5 x 10(5) km). The analysis confirms that the spectrum consists of three segments divided by two breakpoints and that each of the segments can be described by a power-law function with a spectral index alpha. The first segment corresponds to MHD scales and is followed by a plateau, and the third segment can be associated with the kinetic range. The statistics show that the values of the spectral slopes depend on the density fluctuations; their increasing amplitude leads to a steepening of each segment. The index of -1.8 can typically be found at MHD scales and averaging of the spectra in the frequency domain leads to an index of -8/3 at kinetic scales, whereas averaging in frequencies normalized to the ion gyrostructure frequency, f(g), defined as the ratio of the solar wind bulk speed and therma

Czech name

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Czech description

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Type

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

CEP classification

BL - Plasma physics and discharge through gases

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2015

Confidentiality

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

Name of the periodical

Astrophysical Journal

ISSN

0004-637X

e-ISSN

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Volume of the periodical

803

Issue of the periodical within the volume

2

Country of publishing house

US - UNITED STATES

Number of pages

7

Pages from-to

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UT code for WoS article

000353524500058

EID of the result in the Scopus database

2-s2.0-84928321698