On the halo-mass and radial scale dependence of the lensing is low effect
Johannes U Lange,Johannes U Lange,Alexie Leauthaud,Sukhdeep Singh,Sukhdeep Singh,Hong Guo,Rongpu Zhou,Tristan L. Smith,Francis-Yan Cyr-Racine +8 more
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In this article, the authors present new measurements and modelling of galaxies in the Baryon Oscillation Spectroscopic Survey (BOSS) low-lowz sample, focusing on the radial and stellar mass dependence of the lensing amplitude mis-match and find an amplitude mismatch of around $35\%$ when assuming the canonical $Lambda$CDM with Planck Cosmological Microwave Background (CMB) constraints.Abstract:
The canonical $\Lambda$CDM cosmological model makes precise predictions for the clustering and lensing properties of galaxies. It has been shown that the lensing amplitude of galaxies in the Baryon Oscillation Spectroscopic Survey (BOSS) is lower than expected given their clustering properties. We present new measurements and modelling of galaxies in the BOSS LOWZ sample. We focus on the radial and stellar mass dependence of the lensing amplitude mis-match. We find an amplitude mis-match of around $35\%$ when assuming $\Lambda$CDM with Planck Cosmological Microwave Background (CMB) constraints. This offset is independent of halo mass and radial scale in the range $M_{\rm halo}\sim 10^{13.3} - 10^{13.9} h^{-1} M_\odot$ and $r=0.1 - 60 \, h^{-1} \mathrm{Mpc}$ ($k \approx 0.05 - 20 \, h \, {\rm Mpc}^{-1}$). The observation that the offset is both mass and scale independent places important constraints on the degree to which astrophysical processes (baryonic effects, assembly bias) can fully explain the effect. This scale independence also suggests that the "lensing is low" effect on small and large radial scales probably have the same physical origin. Resolutions based on new physics require a nearly uniform suppression, relative to $\Lambda$CDM predictions, of the amplitude of matter fluctuations on these scales. The possible causes of this are tightly constrained by measurements of the CMB and of the low-redshift expansion history.read more
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Dark Energy Survey Year 3 results: Cosmological constraints from galaxy clustering and weak lensing
TL;DR: The first cosmology results from large-scale structure in the Dark Energy Survey (DES) spanning 5000 deg$^2 were presented in this paper , where the authors performed an analysis combining three two-point correlation functions (3$\times$2pt): (i) cosmic shear using 100 million source galaxies, (ii) galaxy clustering, and (iii) cross-correlation of source galaxy shear with lens galaxy positions.
Overview of the DESI Legacy Imaging Surveys
David J. Schlegel,Jacqueline Beechert,Kaylan J. Burleigh,Arjun Dey,Joseph R. Findlay,David Herrera,Stéphanie Juneau,Martin Landriau,Dustin Lang,Aaron M. Meisner,John Moustakas,Adam D. Myers,Edward F. Schlafly,F. Valdes,Benjamin A. Weaver,Jinyi Yang,Christophe Yèche +16 more
TL;DR: The DESI Legacy Imaging Surveys (http://legacysurvey.org/) project is a combination of three public projects (the Dark Energy Camera Legacy Survey, the Beijing-Arizona Sky Survey, and the Mayall z-band Legacy Survey) that will jointly image ≈14,000 deg2 of the extragalactic sky visible from the northern hemisphere in three optical bands (g, r, and z) using telescopes at the Kitt Peak National Observatory and the Cerro Tololo Inter-American Observatory.
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Arbitrating the S8 discrepancy with growth rate measurements from redshift-space distortions
Rafael C. Nunes,Sunny Vagnozzi +1 more
TL;DR: In this paper, the authors examined the role of measurements of the growth rate in arbitrating the $S_8$ discrepancy, considering measurements of $f\sigma_8(z)$ from Redshift-Space Distortions (RSD) from Baryon Acoustic Oscillations (BAO) and Type Ia Supernovae (SNeIa).
Journal ArticleDOI
Evidence for galaxy assembly bias in BOSS CMASS redshift-space galaxy correlation function
TL;DR: In this article, an extended halo occupation distribution model (HOD) is proposed that includes both a concentration-based assembly bias term and an environment-based bias term, and it achieves a good fit (chi 2/DoF = 1.35) on the 2D redshift-space 2-point correlation function (2PCF) of the Baryon Oscillation Spectroscopic Survey (BOSS) CMASS galaxy sample.
Journal ArticleDOI
Consistent lensing and clustering in a low-S8 Universe with BOSS, DES Year 3, HSC Year 1 and KiDS-1000
Alexandra Amon,Naomi Robertson,Hironao Miyatake,Catherine Heymans,Marc White,Joseph DeRose,Shuo Yuan,Risa H. Wechsler,Tamas Varga,Sebastian Bocquet,Andrej Dvornik,Surhud More,Ashley J. Ross,Henk Hoekstra,A. Alarcon,Marika Asgari,Jonathan Blazek,A. Campos,Ru Chen,Ami Choi,Martin Crocce,H. T. Diehl,C. Doux,Kathleen D. Eckert,Jack Elvin-Poole,S. Everett,A. Fert'e,M. Gatti,G. Giannini,Daniel Gruen,Robert A. Gruendl,W. G. Hartley,K. Herner,Hendrik Hildebrandt,S Huang,E. M. Huff,Benjamin Joachimi,S. Lee,Niall MacCrann,Justin Myles,Alejandro Alsina,Takahiro Nishimichi,J. Prat,L. F. Secco,I. Sevilla-Noarbe,Erin Sheldon,T. Shin,T. Trster,M. Troxel,Isaac Tutusaus,A. H. Wright,B. Yin,Michel Aguena,S. Allam,James Annis,David Bacon,M. Bilicki,David J. Brooks,D. L. Burke,A. Carnero Rosell,J. Carretero,Francisco J. Castander,R. Cawthon,M. Costanzi,Luiz N. da Costa,Maria E. S. Pereira,Job de Jong,J. De Vicente,S. Desai,J. P. Dietrich,Peter Doel,I. Ferrero,Joshua A. Frieman,J. Garc'ia-Bellido,D. W. Gerdes,J. Gschwend,G. Gutierrez,Samuel Hinton,D. L. Hollowood,K. Honscheid,D. Huterer,Arun Kannawadi,Kyler Kuehn,Nikolay Kuropatkin,Ofer Lahav,M. Lima,Marcio A. G. Maia,Jennifer L. Marshall,Felipe Menanteau,Ramon Miquel,Joseph J. Mohr,Robert Morgan,J. Muir,F. Paz-Chinchón,Adriano Pieres,A. P. Malag'on,A. Porredon,Mario Rodríguez-Monroy,A. Roodman,E. Sánchez,S. Serrano,Huanyuan Shan,E. Suchyta,Molly E. C. Swanson,Gregory Tarle,D. Thomas,Chun-Hao To,Y.-H. Zhang +107 more
TL;DR: In this article , the authors evaluate the consistency between lensing and clustering based on measurements from BOSS combined with galaxy-galaxy lensing from DES-Y3, HSC-Y1, KiDS-1000.
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