Euclid: Forecast constraints on the cosmic distance duality relation with complementary external probes
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F20%3A00545247" target="_blank" >RIV/68378271:_____/20:00545247 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1051/0004-6361/202039078" target="_blank" >https://doi.org/10.1051/0004-6361/202039078</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1051/0004-6361/202039078" target="_blank" >10.1051/0004-6361/202039078</a>
Alternative languages
Result language
angličtina
Original language name
Euclid: Forecast constraints on the cosmic distance duality relation with complementary external probes
Original language description
Context. In metric theories of gravity with photon number conservation, the luminosity and angular diameter distances are related via the Etherington relation, also known as the distance duality relation (DDR). A violation of this relation would rule out the standard cosmological paradigm and point to the presence of new physics.Aims. We quantify the ability of Euclid, in combination with contemporary surveys, to improve the current constraints on deviations from the DDR in the redshift range 0 < z < 1.6.Methods. We start with an analysis of the latest available data, improving previously reported constraints by a factor of 2.5. We then present a detailed analysis of simulated Euclid and external data products, using both standard parametric methods (relying on phenomenological descriptions of possible DDR violations) and a machine learning reconstruction using genetic algorithms.Results. We find that for parametric methods Euclid can (in combination with external probes) improve current constraints by approximately a factor of six, while for non-parametric methodsn
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
10303 - Particles and field physics
Result continuities
Project
—
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Astronomy & Astrophysics
ISSN
0004-6361
e-ISSN
1432-0746
Volume of the periodical
644
Issue of the periodical within the volume
Dec
Country of publishing house
FR - FRANCE
Number of pages
13
Pages from-to
A80
UT code for WoS article
000596874300007
EID of the result in the Scopus database
2-s2.0-85097344897