The shape of the chameleon fifth-force on the mass components of galaxy clusters
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F24%3A00603636" target="_blank" >RIV/68378271:_____/24:00603636 - isvavai.cz</a>
Result on the web
<a href="https://hdl.handle.net/11104/0364284" target="_blank" >https://hdl.handle.net/11104/0364284</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3390/universe10120443" target="_blank" >10.3390/universe10120443</a>
Alternative languages
Result language
angličtina
Original language name
The shape of the chameleon fifth-force on the mass components of galaxy clusters
Original language description
In the context of chameleon gravity, we present a semi-analytical solution of the chameleon field profile in an accurately modelled galaxy cluster's mass components, namely the stellar mass of the Brightest Cluster Galaxy (BCG), the baryonic mass in galaxies other than the BCG, the mass of the Intra-Cluster Medium (ICM) and the diffuse cold dark matter (CDM). The obtained semi-analytic profile is validated against the numerical solution of the chameleon field equation and implemented in the MG-MAMPOSSt code for kinematic analyses of galaxy clusters in modified gravity scenarios. By means of mock halos, simulated both in GR and in modified gravity, we show that the combination of the velocities and positions of cluster member galaxies, along with the data of the stellar velocity dispersion profile of the BCG, can impose constraints on the parameter space of the chameleon model, for a cluster generated in GR, these constraints are at the same level as a joint lensing+kinematics analysis of a cluster modelled with a single mass profile, without the BCG data.
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
<a href="/en/project/GA24-10780S" target="_blank" >GA24-10780S: New Precision Tests of the Dark Sector</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Universe
ISSN
2218-1997
e-ISSN
2218-1997
Volume of the periodical
10
Issue of the periodical within the volume
12
Country of publishing house
CH - SWITZERLAND
Number of pages
21
Pages from-to
443
UT code for WoS article
001384574500001
EID of the result in the Scopus database
2-s2.0-85213453693