On the Light Rays Propagating in Plasma Medium Around Relativistic Objects

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F21%3A10440081" target="_blank" >RIV/00216208:11320/21:10440081 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.mff.cuni.cz/veda/konference/wds/proc/pdf21/WDS21_02_f1_Bezdekova.pdf" target="_blank" >https://www.mff.cuni.cz/veda/konference/wds/proc/pdf21/WDS21_02_f1_Bezdekova.pdf</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

On the Light Rays Propagating in Plasma Medium Around Relativistic Objects

Popis výsledku v původním jazyce

Profiles of allowed regions for the propagation of rays in the vicinity of a Kerr black hole in the refractive medium (plasma) are studied. Cold plasma approximation is applied and the dispersion relation in the given surroundings is solved. Three different plasma density profiles - nonsingular isothermal sphere, exponential, and power-law distributions, corresponding to various lensing galaxy models, are considered. The allowed regions are analyzed in terms of impact parameters, allowing to estimate ray properties favorable for their detection. It is shown that plasma significantly affects the range of ray impact parameters which can be reached by an observer located between the outer horizon and the static limit of the black hole. It is shown that the plasma effect is most significant close to the black hole and for the power-law density distribution model.

Název v anglickém jazyce

On the Light Rays Propagating in Plasma Medium Around Relativistic Objects

Popis výsledku anglicky

Profiles of allowed regions for the propagation of rays in the vicinity of a Kerr black hole in the refractive medium (plasma) are studied. Cold plasma approximation is applied and the dispersion relation in the given surroundings is solved. Three different plasma density profiles - nonsingular isothermal sphere, exponential, and power-law distributions, corresponding to various lensing galaxy models, are considered. The allowed regions are analyzed in terms of impact parameters, allowing to estimate ray properties favorable for their detection. It is shown that plasma significantly affects the range of ray impact parameters which can be reached by an observer located between the outer horizon and the static limit of the black hole. It is shown that the plasma effect is most significant close to the black hole and for the power-law density distribution model.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

10308 - Astronomy (including astrophysics,space science)

Projekt

<a href="/cs/project/GA21-11268S" target="_blank" >GA21-11268S: Hmotové a nábojové proudy v obecné relativitě a astrofyzice</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název statě ve sborníku

WDS&apos;21 Proceedings of Contributed Papers — Physics

ISBN

978-80-7378-455-3

ISSN

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e-ISSN

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Počet stran výsledku

8

Strana od-do

13-20

Název nakladatele

Matfyzpress

Místo vydání

Praha

Místo konání akce

Praha/ZOOM

Datum konání akce

15. 6. 2021

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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