Geodesic structure of the accelerated stephani universe
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F47813059%3A19630%2F21%3AA0000157" target="_blank" >RIV/47813059:19630/21:A0000157 - isvavai.cz</a>
Result on the web
<a href="https://www.mdpi.com/2073-8994/13/6/1001" target="_blank" >https://www.mdpi.com/2073-8994/13/6/1001</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3390/sym13061001" target="_blank" >10.3390/sym13061001</a>
Alternative languages
Result language
angličtina
Original language name
Geodesic structure of the accelerated stephani universe
Original language description
For the spherically symmetric Stephani cosmological model with an accelerated expansion, we investigate the main scenarios of the test particle and photon motion. We show that a comoving observer sees an appropriate picture. In the case of purely radial motion, the radial velocity decreases slightly with time due to the universe expansion. Both particles and photons spiral out of the center when the radial coordinate is constant. In the case of the motion with arbitrary initial velocity, the observable radial distance to the test particle can increase under negative observable radial velocity.
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
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Symmetry
ISSN
2073-8994
e-ISSN
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Volume of the periodical
13
Issue of the periodical within the volume
6
Country of publishing house
CH - SWITZERLAND
Number of pages
13
Pages from-to
„1001-1“-„1001-13“
UT code for WoS article
000665927500001
EID of the result in the Scopus database
2-s2.0-85108160416