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The SRG-eROSITA All-Sky Survey : Constraints on f(R) Gravity from Cluster Abundance

Fuente: arXiv

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Hauptverfasser:	Artis, E., Ghirardini, V., Bulbul, E., Grandis, S., Garrel, C., Clerc, N., Seppi, R., Comparat, J., Cataneo, M., Bahar, Y. E., Balzer, F., Chiu, I., Gruen, D., Kleinebreil, F., Kluge, M., Krippendorf, S., Li, X., Liu, A., Merloni, A., Miyatake, H., Miyazaki, S., Nandra, K., Okabe, N., Pacaud, F., Predehl, P., Ramos-Ceja, M. E., Reiprich, T. H., Sanders, J. S., Schrabback, T., Zelmer, S., Zhang, X.
Format:	Preprint
Veröffentlicht:	2024
Schlagworte:	Cosmology and Nongalactic Astrophysics
Online-Zugang:	Acceder al recurso
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_version_	1866910714864599040
author	Artis, E. Ghirardini, V. Bulbul, E. Grandis, S. Garrel, C. Clerc, N. Seppi, R. Comparat, J. Cataneo, M. Bahar, Y. E. Balzer, F. Chiu, I. Gruen, D. Kleinebreil, F. Kluge, M. Krippendorf, S. Li, X. Liu, A. Merloni, A. Miyatake, H. Miyazaki, S. Nandra, K. Okabe, N. Pacaud, F. Predehl, P. Ramos-Ceja, M. E. Reiprich, T. H. Sanders, J. S. Schrabback, T. Zelmer, S. Zhang, X.
author_facet	Artis, E. Ghirardini, V. Bulbul, E. Grandis, S. Garrel, C. Clerc, N. Seppi, R. Comparat, J. Cataneo, M. Bahar, Y. E. Balzer, F. Chiu, I. Gruen, D. Kleinebreil, F. Kluge, M. Krippendorf, S. Li, X. Liu, A. Merloni, A. Miyatake, H. Miyazaki, S. Nandra, K. Okabe, N. Pacaud, F. Predehl, P. Ramos-Ceja, M. E. Reiprich, T. H. Sanders, J. S. Schrabback, T. Zelmer, S. Zhang, X.
contents	The evolution of the cluster mass function traces the growth of the linear density perturbations and can be utilized for constraining the parameters of cosmological and alternative gravity models. In this context, we present new constraints on potential deviations from general relativity by investigating the Hu-Sawicki parametrization of the f(R) gravity with the first SRG-eROSITA All-Sky Survey (eRASS1) cluster catalog in the Western Galactic Hemisphere in combination with the overlapping Dark Energy Survey Year 3, KiloDegree Survey and Hyper Supreme Camera data for weak lensing mass calibration. For the first time, we present constraints obtained from cluster abundances only. When we consider massless neutrinos, we find a strict upper limit of log \|fR0\| < -4.31 at 95% confidence level. Massive neutrinos suppress structure growth at small scales, and thus have the opposite effect of f(R) gravity. We consequently investigate the joint fit of the mass of the neutrinos with the modified gravity parameter. We obtain log \|fR0\| < -4.12 jointly with \sum m_ν< 0.44 e.V. at 95% confidence level, tighter than the limits in the literature utilizing cluster counts only. At log \|fR0\|= - 6, the number of clusters is not significantly changed by the theory. Consequently, we do not find any statistical deviation from general relativity from the study of eRASS1 cluster abundance. Deeper surveys with eROSITA, increasing the number of detected clusters, will further improve constraints on log \|fR0\| and investigate alternative gravity theories.
format	Preprint
id	arxiv_https___arxiv_org_abs_2402_08459
institution	arXiv
publishDate	2024
record_format	arxiv
spellingShingle	The SRG-eROSITA All-Sky Survey : Constraints on f(R) Gravity from Cluster Abundance Artis, E. Ghirardini, V. Bulbul, E. Grandis, S. Garrel, C. Clerc, N. Seppi, R. Comparat, J. Cataneo, M. Bahar, Y. E. Balzer, F. Chiu, I. Gruen, D. Kleinebreil, F. Kluge, M. Krippendorf, S. Li, X. Liu, A. Merloni, A. Miyatake, H. Miyazaki, S. Nandra, K. Okabe, N. Pacaud, F. Predehl, P. Ramos-Ceja, M. E. Reiprich, T. H. Sanders, J. S. Schrabback, T. Zelmer, S. Zhang, X. Cosmology and Nongalactic Astrophysics The evolution of the cluster mass function traces the growth of the linear density perturbations and can be utilized for constraining the parameters of cosmological and alternative gravity models. In this context, we present new constraints on potential deviations from general relativity by investigating the Hu-Sawicki parametrization of the f(R) gravity with the first SRG-eROSITA All-Sky Survey (eRASS1) cluster catalog in the Western Galactic Hemisphere in combination with the overlapping Dark Energy Survey Year 3, KiloDegree Survey and Hyper Supreme Camera data for weak lensing mass calibration. For the first time, we present constraints obtained from cluster abundances only. When we consider massless neutrinos, we find a strict upper limit of log \|fR0\| < -4.31 at 95% confidence level. Massive neutrinos suppress structure growth at small scales, and thus have the opposite effect of f(R) gravity. We consequently investigate the joint fit of the mass of the neutrinos with the modified gravity parameter. We obtain log \|fR0\| < -4.12 jointly with \sum m_ν< 0.44 e.V. at 95% confidence level, tighter than the limits in the literature utilizing cluster counts only. At log \|fR0\|= - 6, the number of clusters is not significantly changed by the theory. Consequently, we do not find any statistical deviation from general relativity from the study of eRASS1 cluster abundance. Deeper surveys with eROSITA, increasing the number of detected clusters, will further improve constraints on log \|fR0\| and investigate alternative gravity theories.
title	The SRG-eROSITA All-Sky Survey : Constraints on f(R) Gravity from Cluster Abundance
topic	Cosmology and Nongalactic Astrophysics
url	https://arxiv.org/abs/2402.08459