Arbitrating the S8 discrepancy with growth rate measurements from redshift-space distortions - INSPIRE

DataBETA

Arbitrating the S8 discrepancy with growth rate measurements from redshift-space distortions

Jun 2, 2021

13 pages

Published in:

Mon.Not.Roy.Astron.Soc. 505 (2021) 4, 5427-5437

Published: Jul 8, 2021

e-Print:

2106.01208 [astro-ph.CO]

DOI:

10.1093/mnras/stab1613

View in:

ADS Abstract Service

reference search153 citations

Citations per year

Abstract: (Oxford University Press)

Within the Lambda cold dark matter (ΛCDM) model, measurements from recent cosmic microwave background (CMB) and weak lensing (WL) surveys have uncovered a ∼3σ disagreement in the inferred value of the parameter |

S_8 \equiv \sigma _8\sqrt{\Omega _\mathrm{ m}/0.3}

|⁠, quantifying the amplitude of late-time matter fluctuations. Before questioning whether the S_8 discrepancy calls for new physics, it is important to assess the view of measurements other than CMB and WL ones on the discrepancy. Here, we examine the role of measurements of the growth rate f(z) in arbitrating the S_8 discrepancy, considering measurements of fσ_8(z) from redshift-space distortions (RSDs). Our baseline analysis combines RSD measurements with geometrical measurements from baryon acoustic oscillations (BAO) and Type Ia Supernovae (SNeIa), given the key role of the latter in constraining Ω_m. From this combination and within the ΛCDM model, we find |

S_8 = 0.762^{+0.030}_{-0.025}

|⁠, and quantify the agreement between RSD + BAO + SNeIa and Planck to be at the 2.2σ level: the mild disagreement is therefore compatible with a statistical fluctuation. We discuss combinations of RSD measurements with other data sets, including the statistic. This combination increases the discrepancy with Planck, but we deem it significantly less robust. Our earlier results are stable against an extension where we allow the dark energy equation of state w to vary. We conclude that, from the point of view of combined growth rate and geometrical measurements, there are hints, but no strong evidence yet, for the Planck ΛCDM cosmology overpredicting the amplitude of matter fluctuations at redshifts z ≲ 1. From this perspective, it might therefore still be premature to claim the need for new physics from the S_8 discrepancy.

Note:

13 pages, 1 table, 3 figures. Accepted for publication in MNRAS

cosmological parameters
dark energy
dark matter

References(199)

Figures(4)

CMB-S4 Science Book, First Edition

CMB-S4

Collaboration

•

Kevork N. Abazajian
(
- UC, Irvine
)

et al.

e-Print:
- 1610.02743

Dark Energy Survey Year 1 Results: Cosmological constraints from cluster abundances and weak lensing

DES

Collaboration

•

T.M.C. Abbott
(
- Cerro-Tololo InterAmerican Obs.
)

et al.

- Phys.Rev.D 102 (2020) 2, 023509
•
e-Print:
- 2002.11124
•
DOI:
- 10.1103/PhysRevD.102.023509

Implications of the $S_8$ tension for decaying dark matter with warm decay products

- Phys.Rev.D 105 (2022) 6, 063525
•
e-Print:
- 2008.09615
•
DOI:
- 10.1103/PhysRevD.105.063525

Linear cosmological constraints on two-body decaying dark matter scenarios and the S8 tension

- Phys.Rev.D 104 (2021) 12, 123533
•
e-Print:
- 2102.12498
•
DOI:
- 10.1103/PhysRevD.104.123533

Quantifying discordance in the 2015 Planck CMB spectrum

et al.

- Astrophys.J. 818 (2016) 2, 132
•
e-Print:
- 1511.00055
•
DOI:
- 10.3847/0004-637X/818/2/132

Planck 2015 results. XXIV. Cosmology from Sunyaev-Zeldovich cluster counts

Planck

Collaboration

•

P.A.R. Ade
(
- Cardiff U.
)

et al.

- Astron.Astrophys. 594 (2016) A24
•
e-Print:
- 1502.01597
•
DOI:
- 10.1051/0004-6361/201525833

The Simons Observatory: Science goals and forecasts

Simons Observatory

Collaboration

•

Peter Ade
(
- Cardiff U.
)

et al.

- JCAP 02 (2019) 056
•
e-Print:
- 1808.07445
•
DOI:
- 10.1088/1475-7516/2019/02/056

A new measure of tension between experiments

- JCAP 01 (2019) 036
•
e-Print:
- 1806.04292
•
DOI:
- 10.1088/1475-7516/2019/01/036

Planck 2018 results. VI. Cosmological parameters

Planck

Collaboration

•

N. Aghanim
(
- Orsay, IAS
)

et al.

- Astron.Astrophys. 641 (2020) A6,
- Astron.Astrophys. 652 (2021) C4 (erratum)
•
e-Print:
- 1807.06209
•
DOI:
- 10.1051/0004-6361/201833910

The Atacama Cosmology Telescope: DR4 Maps and Cosmological Parameters

ACT

Collaboration

•

Simone Aiola
(
- CCA, New York and
- Princeton U.
)

et al.

- JCAP 12 (2020) 047
•
e-Print:
- 2007.07288
•
DOI:
- 10.1088/1475-7516/2020/12/047

Testing gravity on large scales by combining weak lensing with galaxy clustering using CFHTLenS and BOSS CMASS

- Mon.Not.Roy.Astron.Soc. 465 (2017) 4, 4853-4865
•
e-Print:
- 1610.09410
•
DOI:
- 10.1093/mnras/stw3056

The clustering of galaxies in the completed SDSS-III Baryon Oscillation Spectroscopic Survey: cosmological analysis of the DR12 galaxy sample

BOSS

Collaboration

•

Shadab Alam
(
- Carnegie Mellon U.
)

et al.

- Mon.Not.Roy.Astron.Soc. 470 (2017) 3, 2617-2652
•
e-Print:
- 1607.03155
•
DOI:
- 10.1093/mnras/stx721

Late-time approaches to the Hubble tension deforming H(z), worsen the growth tension

George Alestas
(
- Ioannina U.
)
,
Leandros Perivolaropoulos
(
- Ioannina U.
)

- Mon.Not.Roy.Astron.Soc. 504 (2021) 3, 3956-3962
•
e-Print:
- 2103.04045
•
DOI:
- 10.1093/mnras/stab1070

Cosmology and fundamental physics with the Euclid satellite

et al.

- Living Rev.Rel. 16 (2013) 6
•
e-Print:
- 1206.1225
•
DOI:
- 10.12942/lrr-2013-6

Observables and unobservables in dark energy cosmologies

Luca Amendola
(
- Heidelberg U.
)
,
Martin Kunz
(
- Geneva U., Dept. Theor. Phys. and
- Geneva U.
)
,
Mariele Motta
(
- Heidelberg U. and
- Campinas State U.
)
,
Ippocratis D. Saltas
(
- Nottingham U.
)
,
Ignacy Sawicki
(
- Heidelberg U.
)

- Phys.Rev.D 87 (2013) 2, 023501
•
e-Print:
- 1210.0439
•
DOI:
- 10.1103/PhysRevD.87.023501

KiDS+2dFLenS+GAMA: Testing the cosmological model with the $E_{\rm G}$ statistic

et al.

- Mon.Not.Roy.Astron.Soc. 479 (2018) 3, 3422-3437
•
e-Print:
- 1711.10999
•
DOI:
- 10.1093/mnras/sty1624

Constraining Dark Matter-Dark Radiation interactions with CMB, BAO, and Lyman- $\alpha$

Maria Archidiacono
(
- RWTH Aachen U. and
- INFN, Bologna and
- Bologna U.
)
,
Deanna C. Hooper
(
- RWTH Aachen U.
)
,
Riccardo Murgia
(
- SISSA, Trieste and
- INFN, Trieste and
- U. Trieste (main)
)
,
Sebastian Bohr
(
- Iceland U.
)
,
Julien Lesgourgues
(
- RWTH Aachen U.
)

et al.

- JCAP 10 (2019) 055
•
e-Print:
- 1907.01496
•
DOI:
- 10.1088/1475-7516/2019/10/055

KiDS+VIKING-450 and DES-Y1 combined: Mitigating baryon feedback uncertainty with COSEBIs

et al.

- Astron.Astrophys. 634 (2020) A127
•
e-Print:
- 1910.05336
•
DOI:
- 10.1051/0004-6361/201936512

KiDS-1000 Cosmology: Cosmic shear constraints and comparison between two point statistics

KiDS

Collaboration

•

Marika Asgari
(
- Edinburgh U., Inst. Astron.
)

et al.

- Astron.Astrophys. 645 (2021) A104
•
e-Print:
- 2007.15633
•
DOI:
- 10.1051/0004-6361/202039070

Conservative Constraints on Early Cosmology: an illustration of the Monte Python cosmological parameter inference code

Benjamin Audren
(
- ITPP, Lausanne
)
,
Julien Lesgourgues
(
- ITPP, Lausanne and
- CERN and
- Annecy, LAPTH
)
,
Karim Benabed
(
- Paris, Inst. Astrophys.
)
,
Simon Prunet
(
- Paris, Inst. Astrophys.
)

- JCAP 02 (2013) 001
•
e-Print:
- 1210.7183
•
DOI:
- 10.1088/1475-7516/2013/02/001

Sounds Discordant: Classical Distance Ladder & $\Lambda$ CDM -based Determinations of the Cosmological Sound Horizon

Kevin Aylor
(
- UC, Davis
)
,
MacKenzie Joy
(
- Georgia U.
)
,
Lloyd Knox
(
- UC, Davis
)
,
Marius Millea
(
- BCCP, Berkeley and
- Paris, Inst. Astrophys. and
- ILP, Paris
)
,
Srinivasan Raghunathan
(
- Melbourne U. and
- UCLA
)

et al.

- Astrophys.J. 874 (2019) 1, 4
•
e-Print:
- 1811.00537
•
DOI:
- 10.3847/1538-4357/ab0898

The $H_0$ tension: $\Delta G_N$ vs. $\Delta N_{\rm eff}$

Guillermo Ballesteros
(
- Madrid, IFT and
- Madrid, Autonoma U.
)
,
Alessio Notari
(
- Barcelona U. and
- ICC, Barcelona U.
)
,
Fabrizio Rompineve
(
- Tufts U., Inst. of Cosmology
)

- JCAP 11 (2020) 024
•
e-Print:
- 2004.05049
•
DOI:
- 10.1088/1475-7516/2020/11/024

Testing $F(Q)$ gravity with redshift space distortions

Bruno J. Barros
(
- Lisbon U., CAAUL
)
,
Tiago Barreiro
(
- Lisbon U., CAAUL and
- Lusofona U.
)
,
Tomi Koivisto
(
- Tartu U. and
- NICPB, Tallinn
)
,
Nelson J. Nunes
(
- Lisbon U., CAAUL
)

- Phys.Dark Univ. 30 (2020) 100616
•
e-Print:
- 2004.07867
•
DOI:
- 10.1016/j.dark.2020.100616

Evidence for Massive Neutrinos from Cosmic Microwave Background and Lensing Observations

Richard A. Battye
(
- Manchester U.
)
,
Adam Moss
(
- Nottingham U.
)

- Phys.Rev.Lett. 112 (2014) 5, 051303
•
e-Print:
- 1308.5870
•
DOI:
- 10.1103/PhysRevLett.112.051303

The $H_0$ and $\sigma_8$ tensions and the scale invariant spectrum

- JCAP 07 (2018) 066
•
e-Print:
- 1712.00677
•
DOI:
- 10.1088/1475-7516/2018/07/066

1-25 of 199
1
2
3
4
5
•••
8
25 / page