Circular motion and collisions of spinning test particles around Kerr-Kiselev black holes
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F47813059%3A19630%2F24%3AA0000397" target="_blank" >RIV/47813059:19630/24:A0000397 - isvavai.cz</a>
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S2212686424001705?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S2212686424001705?via%3Dihub</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.dark.2024.101588" target="_blank" >10.1016/j.dark.2024.101588</a>
Alternative languages
Result language
angličtina
Original language name
Circular motion and collisions of spinning test particles around Kerr-Kiselev black holes
Original language description
Exploring the effect of exotic fields around black holes on particle dynamics may help to understand the nature of dark matter and energy. The quintessential field can be treated as one of such fields. In this work, we investigate the motion of spinning particles in the vicinity of rotating black holes immersed in quintessential dark energy, characterized by the equation of state (EoS) parameter omega is an element of (-1; -1/3) governing the equation of state of the dark energy and dimensionless quintessential field parameter C. Using the Mathisson-Papapetrou- Dixon (MPD) equations, we derive the effective potential and study superluminal bound values for the particle spin. Also, we investigate the behaviors of the innermost and outermost stable circular orbit (ISCO & OSCO) of spinning test particles and their energy and angular momentum at the orbits. Note that the OSCO exists due to the third cosmological-like horizon caused by the quintessential field and shows that the ISCO and OSCO coincide at critical values of the quintessential field and EoS parameters, which also depend on the particle and black hole spin. Finally, we explore collisions of spinning particles and analyze the center-of-mass energies and critical angular momentum, which allows the collisions of the particles near the black hole.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10308 - Astronomy (including astrophysics,space science)
Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach<br>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
Physics of the Dark Universe
ISSN
2212-6864
e-ISSN
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Volume of the periodical
46
Issue of the periodical within the volume
December 2024
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
11
Pages from-to
„101588-1“-„101588-11“
UT code for WoS article
001284285100001
EID of the result in the Scopus database
2-s2.0-85199812013