Stability of rotating, charged fluids: Generalization of the Høiland conditions in Newtonian nonconductive case
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F24%3A00584792" target="_blank" >RIV/67985815:_____/24:00584792 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1103/PhysRevD.109.043047" target="_blank" >https://doi.org/10.1103/PhysRevD.109.043047</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevD.109.043047" target="_blank" >10.1103/PhysRevD.109.043047</a>
Alternative languages
Result language
angličtina
Original language name
Stability of rotating, charged fluids: Generalization of the Høiland conditions in Newtonian nonconductive case
Original language description
We study the conditions for stability of electrically charged, nonconductive perfect fluid tori with respect to linear perturbations. To this end, we employ Lagrangian perturbation formalism, and we assume a system where the fluid orbits a central body. Gravitational field of the latter is described in the Newtonian framework. We first formulate the criteria valid for a general, nonaxisymmetric situation, and then we concentrate on the axisymmetric model in more detail. In the latter case, we generalize the Hoiland criterion of stability to a nonvanishing electric charge and classify special examples. Toroidal structures with constant angular momentum distribution are found to be linearly stable. Subsequently, like in the uncharged case, rotating charged fluids are found to be unstable with respect to nonaxisymmetric perturbations.
Czech name
—
Czech description
—
Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10308 - Astronomy (including astrophysics,space science)
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Physical Review D
ISSN
2470-0010
e-ISSN
2470-0029
Volume of the periodical
109
Issue of the periodical within the volume
4
Country of publishing house
US - UNITED STATES
Number of pages
13
Pages from-to
043047
UT code for WoS article
001180189000002
EID of the result in the Scopus database
2-s2.0-85186397560