Time Dilation Observed in Type Ia Supernova Light Curves and Its Cosmological Consequences
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F25%3A10506958" target="_blank" >RIV/00216208:11310/25:10506958 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=FqyKc4gIed" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=FqyKc4gIed</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3390/galaxies13030055" target="_blank" >10.3390/galaxies13030055</a>
Alternative languages
Result language
angličtina
Original language name
Time Dilation Observed in Type Ia Supernova Light Curves and Its Cosmological Consequences
Original language description
The cosmic time dilation observed in Type Ia supernova light curves suggests that the passage of cosmic time varies throughout the evolution of the Universe. This observation implies that the rate of proper time is not constant, as assumed in the standard FLRW metric, but instead is time-dependent. Consequently, the commonly used FLRW metric should be replaced by a more general framework, known as the Conformal Cosmology (CC) metric, to properly account for cosmic time dilation. The CC metric incorporates both spatial expansion and time dilation during cosmic evolution. As a result, it is necessary to distinguish between comoving and proper (physical) time, similar to the distinction made between comoving and proper distances. In addition to successfully explaining cosmic time dilation, the CC metric offers several further advantages: (1) it preserves Lorentz invariance, (2) it maintains the form of Maxwell's equations as in Minkowski spacetime, (3) it eliminates the need for dark matter and dark energy in the Friedmann equations, and (4) it successfully predicts the expansion and morphology of spiral galaxies in agreement with observations.
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
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Galaxies
ISSN
2075-4434
e-ISSN
2075-4434
Volume of the periodical
13
Issue of the periodical within the volume
3
Country of publishing house
CH - SWITZERLAND
Number of pages
17
Pages from-to
55
UT code for WoS article
001514949200001
EID of the result in the Scopus database
2-s2.0-105009311589