Interpretation of spacetimes with expanding impulsive gravitational waves generated by snapped cosmic strings
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F23%3A10473961" target="_blank" >RIV/00216208:11320/23:10473961 - isvavai.cz</a>
Výsledek na webu
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=mgVSBZnkQr" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=mgVSBZnkQr</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevD.108.044059" target="_blank" >10.1103/PhysRevD.108.044059</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Interpretation of spacetimes with expanding impulsive gravitational waves generated by snapped cosmic strings
Popis výsledku v původním jazyce
Spacetimes representing expanding impulsive gravitational waves propagating on a flat background are studied. The impulses are generated by various configurations of snapped cosmic strings. Employing the previous results [J. PodolskATIN SMALL LETTER Y WITH ACUTE et al., The global uniqueness and C1-regularity of geodesics in expanding impulsive gravitational waves, Classical Quantum Gravity 33, 195010 (2016)], analyzing the geodesic motion in generic expanding impulses, we investigate geometric properties of more intricate stringlike wave sources than the standard case of a single snapped string. Such solutions representing pairs of snapping strings were technically derived in PodolskATIN SMALL LETTER Y WITH ACUTE and Griffiths [The collision and snapping of cosmic strings generating spherical impulsive gravitational waves, Classical Quantum Gravity 17, 1401 (2000)], however, the corresponding physical analysis requires to introduce their generalizations to point out various subtleties in the construction. As the main tool, we thus use the close connection between the spacetime structure and the motion of free test particles crossing the impulse. Within our contribution, the explicit models of a boosted snapped cosmic string and boosted perpendicular or parallel configurations of string pairs are discussed in detail.
Název v anglickém jazyce
Interpretation of spacetimes with expanding impulsive gravitational waves generated by snapped cosmic strings
Popis výsledku anglicky
Spacetimes representing expanding impulsive gravitational waves propagating on a flat background are studied. The impulses are generated by various configurations of snapped cosmic strings. Employing the previous results [J. PodolskATIN SMALL LETTER Y WITH ACUTE et al., The global uniqueness and C1-regularity of geodesics in expanding impulsive gravitational waves, Classical Quantum Gravity 33, 195010 (2016)], analyzing the geodesic motion in generic expanding impulses, we investigate geometric properties of more intricate stringlike wave sources than the standard case of a single snapped string. Such solutions representing pairs of snapping strings were technically derived in PodolskATIN SMALL LETTER Y WITH ACUTE and Griffiths [The collision and snapping of cosmic strings generating spherical impulsive gravitational waves, Classical Quantum Gravity 17, 1401 (2000)], however, the corresponding physical analysis requires to introduce their generalizations to point out various subtleties in the construction. As the main tool, we thus use the close connection between the spacetime structure and the motion of free test particles crossing the impulse. Within our contribution, the explicit models of a boosted snapped cosmic string and boosted perpendicular or parallel configurations of string pairs are discussed in detail.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
10300 - Physical sciences
Návaznosti výsledku
Projekt
Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Ostatní
Rok uplatnění
2023
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Physical Review D
ISSN
2470-0010
e-ISSN
2470-0029
Svazek periodika
108
Číslo periodika v rámci svazku
4
Stát vydavatele periodika
US - Spojené státy americké
Počet stran výsledku
19
Strana od-do
044059
Kód UT WoS článku
001072035800002
EID výsledku v databázi Scopus
2-s2.0-85172765141