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The SRG/eROSITA all-sky survey: Cosmology constraints from cluster abundances in the western Galactic hemisphere

Fuente: arXiv

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Autori principali:	Ghirardini, V., Bulbul, E., Artis, E., Clerc, N., Garrel, C., Grandis, S., Kluge, M., Liu, A., Bahar, Y. E., Balzer, F., Chiu, I., Comparat, J., Gruen, D., Kleinebreil, F., Krippendorf, S., Merloni, A., Nandra, K., Okabe, N., Pacaud, F., Predehl, P., Ramos-Ceja, M. E., Reiprich, T. H., Sanders, J. S., Schrabback, T., Seppi, R., Zelmer, S., Zhang, X., Bornemann, W., Brunner, H., Burwitz, V., Coutinho, D., Dennerl, K., Freyberg, M., Friedrich, S., Gaida, R., Gueguen, A., Haberl, F., Kink, W., Lamer, G., Li, X., Liu, T., Maitra, C., Meidinger, N., Mueller, S., Miyatake, H., Miyazaki, S., Robrade, J., Schwope, A., Stewart, I.
Natura:	Preprint
Pubblicazione:	2024
Soggetti:	Cosmology and Nongalactic Astrophysics General Relativity and Quantum Cosmology
Accesso online:	Acceder al recurso
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_version_	1866912043205918720
author	Ghirardini, V. Bulbul, E. Artis, E. Clerc, N. Garrel, C. Grandis, S. Kluge, M. Liu, A. Bahar, Y. E. Balzer, F. Chiu, I. Comparat, J. Gruen, D. Kleinebreil, F. Krippendorf, S. Merloni, A. Nandra, K. Okabe, N. Pacaud, F. Predehl, P. Ramos-Ceja, M. E. Reiprich, T. H. Sanders, J. S. Schrabback, T. Seppi, R. Zelmer, S. Zhang, X. Bornemann, W. Brunner, H. Burwitz, V. Coutinho, D. Dennerl, K. Freyberg, M. Friedrich, S. Gaida, R. Gueguen, A. Haberl, F. Kink, W. Lamer, G. Li, X. Liu, T. Maitra, C. Meidinger, N. Mueller, S. Miyatake, H. Miyazaki, S. Robrade, J. Schwope, A. Stewart, I.
author_facet	Ghirardini, V. Bulbul, E. Artis, E. Clerc, N. Garrel, C. Grandis, S. Kluge, M. Liu, A. Bahar, Y. E. Balzer, F. Chiu, I. Comparat, J. Gruen, D. Kleinebreil, F. Krippendorf, S. Merloni, A. Nandra, K. Okabe, N. Pacaud, F. Predehl, P. Ramos-Ceja, M. E. Reiprich, T. H. Sanders, J. S. Schrabback, T. Seppi, R. Zelmer, S. Zhang, X. Bornemann, W. Brunner, H. Burwitz, V. Coutinho, D. Dennerl, K. Freyberg, M. Friedrich, S. Gaida, R. Gueguen, A. Haberl, F. Kink, W. Lamer, G. Li, X. Liu, T. Maitra, C. Meidinger, N. Mueller, S. Miyatake, H. Miyazaki, S. Robrade, J. Schwope, A. Stewart, I.
contents	The cluster mass function traces the growth of linear density perturbations and provides valuable insights into the growth of structures, the nature of dark matter, and the cosmological parameters governing the Universe. The primary science goal of eROSITA, on board the {\it Spectrum Roentgen Gamma (SRG)} mission, launched in 2019, is to constrain cosmology through the evolution of cluster mass function. In this paper, we present the cosmological constraints obtained from 5259 clusters of galaxies detected over an area of 12791~deg$^2$ in the Western Galactic Hemisphere of the eROSITA's first All-Sky Survey (eRASS1). The common footprint region between the eROSITA Survey and DES, KiDS, and HSC surveys is used for calibration of the scaling between X-ray count rate and their total mass through measurements of their weak gravitational lensing signal. eRASS1 cluster abundances constrain the $Λ$CDM parameters, which are the energy density of the total matter to $Ω_{\mathrm{m}}=0.29^{+0.01}_{-0.02}$, and the normalization of the density fluctuations to $σ_8=0.88\pm0.02$ and their combination yields $S_8=σ_8 (Ω_\mathrm{m} / 0.3)^{0.5}=0.86\pm0.01$, consistent and at a similar precision with the state-of-the-art CMB measurements. eRASS1 cosmological experiment places a most stringent upper limit on the summed masses of left-handed light neutrinos to $\sum m_ν< 0.22\mathrm{~eV}$ (95\% confidence interval). Combining eRASS1 cluster abundance measurements with CMB and ground-based neutrino oscillation experiments, we measure the summed neutrino masses to be $\sum m_ν=0.08_{-0.02}^{+0.03}\mathrm{~eV}$ or $\sum m_ν=0.12_{-0.01}^{+0.03}\mathrm{~eV}$ depending on the mass hierarchy scenario for neutrino eigenstates. eRASS1 cluster abundances significantly improve the constraints on the dark energy equation of state parameter to $w=-1.12\pm0.12$. (ABRIDGED)
format	Preprint
id	arxiv_https___arxiv_org_abs_2402_08458
institution	arXiv
publishDate	2024
record_format	arxiv
spellingShingle	The SRG/eROSITA all-sky survey: Cosmology constraints from cluster abundances in the western Galactic hemisphere Ghirardini, V. Bulbul, E. Artis, E. Clerc, N. Garrel, C. Grandis, S. Kluge, M. Liu, A. Bahar, Y. E. Balzer, F. Chiu, I. Comparat, J. Gruen, D. Kleinebreil, F. Krippendorf, S. Merloni, A. Nandra, K. Okabe, N. Pacaud, F. Predehl, P. Ramos-Ceja, M. E. Reiprich, T. H. Sanders, J. S. Schrabback, T. Seppi, R. Zelmer, S. Zhang, X. Bornemann, W. Brunner, H. Burwitz, V. Coutinho, D. Dennerl, K. Freyberg, M. Friedrich, S. Gaida, R. Gueguen, A. Haberl, F. Kink, W. Lamer, G. Li, X. Liu, T. Maitra, C. Meidinger, N. Mueller, S. Miyatake, H. Miyazaki, S. Robrade, J. Schwope, A. Stewart, I. Cosmology and Nongalactic Astrophysics General Relativity and Quantum Cosmology The cluster mass function traces the growth of linear density perturbations and provides valuable insights into the growth of structures, the nature of dark matter, and the cosmological parameters governing the Universe. The primary science goal of eROSITA, on board the {\it Spectrum Roentgen Gamma (SRG)} mission, launched in 2019, is to constrain cosmology through the evolution of cluster mass function. In this paper, we present the cosmological constraints obtained from 5259 clusters of galaxies detected over an area of 12791~deg$^2$ in the Western Galactic Hemisphere of the eROSITA's first All-Sky Survey (eRASS1). The common footprint region between the eROSITA Survey and DES, KiDS, and HSC surveys is used for calibration of the scaling between X-ray count rate and their total mass through measurements of their weak gravitational lensing signal. eRASS1 cluster abundances constrain the $Λ$CDM parameters, which are the energy density of the total matter to $Ω_{\mathrm{m}}=0.29^{+0.01}_{-0.02}$, and the normalization of the density fluctuations to $σ_8=0.88\pm0.02$ and their combination yields $S_8=σ_8 (Ω_\mathrm{m} / 0.3)^{0.5}=0.86\pm0.01$, consistent and at a similar precision with the state-of-the-art CMB measurements. eRASS1 cosmological experiment places a most stringent upper limit on the summed masses of left-handed light neutrinos to $\sum m_ν< 0.22\mathrm{~eV}$ (95\% confidence interval). Combining eRASS1 cluster abundance measurements with CMB and ground-based neutrino oscillation experiments, we measure the summed neutrino masses to be $\sum m_ν=0.08_{-0.02}^{+0.03}\mathrm{~eV}$ or $\sum m_ν=0.12_{-0.01}^{+0.03}\mathrm{~eV}$ depending on the mass hierarchy scenario for neutrino eigenstates. eRASS1 cluster abundances significantly improve the constraints on the dark energy equation of state parameter to $w=-1.12\pm0.12$. (ABRIDGED)
title	The SRG/eROSITA all-sky survey: Cosmology constraints from cluster abundances in the western Galactic hemisphere
topic	Cosmology and Nongalactic Astrophysics General Relativity and Quantum Cosmology
url	https://arxiv.org/abs/2402.08458