Interpretation of spacetimes with expanding impulsive gravitational waves generated by snapped cosmic strings
The result's identifiers
Result code in 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>
Result on the web
<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>
Alternative languages
Result language
angličtina
Original language name
Interpretation of spacetimes with expanding impulsive gravitational waves generated by snapped cosmic strings
Original language description
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.
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
10300 - Physical sciences
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2023
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
108
Issue of the periodical within the volume
4
Country of publishing house
US - UNITED STATES
Number of pages
19
Pages from-to
044059
UT code for WoS article
001072035800002
EID of the result in the Scopus database
2-s2.0-85172765141