Spiral motion formation in astrophysics

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F47813059%3A19240%2F13%3AN0000001" target="_blank" >RIV/47813059:19240/13:N0000001 - isvavai.cz</a>

Result on the web

<a href="https://link.springer.com/article/10.1140%2Fepjp%2Fi2013-13142-9" target="_blank" >https://link.springer.com/article/10.1140%2Fepjp%2Fi2013-13142-9</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1140/epjp/i2013-13142-9" target="_blank" >10.1140/epjp/i2013-13142-9</a>

Result language

angličtina

Original language name

Spiral motion formation in astrophysics

Original language description

Motion of charged matter in gravitational and large-scale magnetic fields represents one of the most discussed topics in astrophysics. Here, one of the particular problems is addressed: the spiral motion of charged test particles as a possible mechanism for generation of weak toroidal magnetic field (magnetic loop) complementary to the prescribed large-scale one. To this aim, by contrast with the usually assumed scenario with particles circling in spirals along with the magnetic lines of a magnetic field dominating over gravity, the perturbed stable circular equatorial motion is discussed when the gravity of the central object plays at least a comparable role to electromagnetism. It is shown that the proper relation between the epicyclic and orbital frequencies necessary for the spiral motion cannot be easily achieved in the basic fields configuration within the Newtonian theory. The inclusion of the strong-field general relativistic effect, however, yields the desired conditions for particles to orbit in spirals.

Czech name

—

Czech description

—

Type

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

CEP classification

BN - Astronomy and celestial mechanics, astrophysics

OECD FORD branch

—

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2013

Confidentiality

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

Name of the periodical

European Physical Journal Plus

ISSN

2190-5444

e-ISSN

—

Volume of the periodical

128

Issue of the periodical within the volume

11

Country of publishing house

DE - GERMANY

Number of pages

5

Pages from-to

'142-1'-'142-5'

UT code for WoS article

000333344500001

EID of the result in the Scopus database

—