Cluster counts II. tensions, massive neutrinos, and modified gravity
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F19%3A00522486" target="_blank" >RIV/68378271:_____/19:00522486 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1051/0004-6361/201936423" target="_blank" >https://doi.org/10.1051/0004-6361/201936423</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1051/0004-6361/201936423" target="_blank" >10.1051/0004-6361/201936423</a>
Alternative languages
Result language
angličtina
Original language name
Cluster counts II. tensions, massive neutrinos, and modified gravity
Original language description
The Lambda cold dark matter (ΛCDM) concordance model is very successful at describing our Universe with high accuracy and only a few parameters. Despite its successes, a few tensions persist most notably, the best-fit ΛCDM model, as derived from the Planck cosmic microwave background (CMB) data, largely overpredicts the abundance of Sunyaev-Zel'dovich (SZ) clusters when using their standard mass calibration. Whether this is the sign of an incorrect calibration or the need for new physics remains a matter of debate. In this study, we examined two simple extensions of the standard model and their ability to release the aforementioned tension: massive neutrinos and a simple modified gravity model via a non-standard growth index γ. We used both the Planck CMB power spectra and SZ cluster counts as datasets, alone and in combination with local X-ray clusters.
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
<a href="/en/project/EF15_003%2F0000437" target="_blank" >EF15_003/0000437: Cosmology, Gravity and the Dark Sector of the Universe</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2019
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
—
Volume of the periodical
631
Issue of the periodical within the volume
Oct
Country of publishing house
FR - FRANCE
Number of pages
6
Pages from-to
1-6
UT code for WoS article
000506222500001
EID of the result in the Scopus database
2-s2.0-85074496546