Euclid preparation: XXXVI. Modelling of the weak lensing angular power spectrum

A.C. Deshpande; T. Kitching; A. Hall; M.L. Brown; N. Aghanim; L. Amendola; N. Auricchio; M. Baldi; R. Bender; D. Bonino; E. Branchini; M. Brescia; J. Brinchmann; S. Camera; G.P. Candini; V. Capobianco; C. Carbone; V.F. Cardone; J. Carretero; F.J. Castander; M. Castellano; S. Cavuoti; A. Cimatti; R. Cledassou; G. Congedo; C.J. Conselice; L. Conversi; L. Corcione; F. Courbin; M. Cropper; A. Da Silva; H. Degaudenzi; Marian Douspis; F. Dubath; C.A.J. Duncan; X. Dupac; S. Farrens; S. Ferriol; P. Fosalba; M. Frailis; E. Franceschi; M. Fumana; S. Galeotta; B. Garilli; B. Gillis; C. Giocoli; A. Grazian; F. Grupp; S.V.H. Haugan; H. Hoekstra; W. Holmes; A. Hornstrup; P. Hudelot; K. Jahnke; S. Kermiche; M. Kilbinger; M. Kunz; H. Kurki-Suonio; S. Ligori; P.B. Lilje; I. Lloro; E. Maiorano; O. Mansutti; O. Marggraf; K. Markovic; F. Marulli; R. Massey; S. Mei; Y. Mellier; M. Meneghetti; G. Meylan; L. Moscardini; S.-M. Niemi; J.W. Nightingale; T. Nutma; C. Padilla; S. Paltani; F. Pasian; K. Pedersen; V. Pettorino; S. Pires; G. Polenta; M. Poncet; L.A. Popa; F. Raison; A. Renzi; J. Rhodes; G. Riccio; E. Romelli; M. Roncarelli; E. Rossetti; R. Saglia; D. Sapone; B. Sartoris; P. Schneider; T. Schrabback; A. Secroun; G. Seidel; S. Serrano; C. Sirignano; G. Sirri; L. Stanco; P. Tallada-Crespí; I. Tereno; R. Toledo-Moreo; F. Torradeflot; I. Tutusaus; E.A. Valentijn; L. Valenziano; T. Vassallo; Y. Wang; J. Weller; A. Zacchei; G. Zamorani; J. Zoubian; S. Andreon; S. Bardelli; A. Boucaud; E. Bozzo; C. Colodro-Conde; D. Di Ferdinando; G. Fabbian; M. Farina; J. Graciá-Carpio; E. Keihänen; V. Lindholm; N. Mauri; V. Scottez; M. Tenti; E. Zucca; Y. Akrami; C. Baccigalupi; A. Balaguera-Antolínez; M. Ballardini; F. Bernardeau; A. Biviano; A. Blanchard; A.S. Borlaff; C. Burigana; R. Cabanac; A. Cappi; C.S. Carvalho; S. Casas; G. Castignani; T. Castro; K.C. Chambers; A.R. Cooray; J. Coupon; H.M. Courtois; S. Davini; S. de la Torre; G. de Lucia; G. Desprez; Herve Dole; J.A. Escartin; S. Escoffier; I. Ferrero; F. Finelli; J. Garcia-Bellido; K. George; F. Giacomini; G. Gozaliasl; H. Hildebrandt; J.J.E. Kajava; V. Kansal; C.C. Kirkpatrick; L. Legrand; A. Loureiro; J. Macias-Perez; M. Magliocchetti; G. Mainetti; R. Maoli; M. Martinelli; N. Martinet; C.J.A.P. Martins; S. Matthew; L. Maurin; R.B. Metcalf; P. Monaco; G. Morgante; S. Nadathur; A.A. Nucita; L. Patrizii; A. Peel; J. Pollack; V. Popa; C. Porciani; D. Potter; A. Pourtsidou; M. Pöntinen; P. Reimberg; A.G. Sánchez; Z. Sakr; A. Schneider; E. Sefusatti; M. Sereno; A. Shulevski; A. Spurio Mancini; J. Steinwagner; R. Teyssier; M. Viel; I.A. Zinchenko; P. Fleury

doi:10.1051/0004-6361/202346110

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Euclid preparation: XXXVI. Modelling of the weak lensing angular power spectrum

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Euclid preparation: XXXVI. Modelling of the weak lensing angular power spectrum

A.C. Deshpande, T. Kitching, A. Hall, M.L. Brown, N. Aghanim, L. Amendola, N. Auricchio, M. Baldi, R. Bender, D. Bonino, …

Astronomy & Astrophysics - A&A, Vol.684

2024

DOI: https://doi.org/10.1051/0004-6361/202346110

Abstract

Cosmology: observations

Gravitational lensing: weak

Methods: analytical

Cosmology: observations

This work considers which higher-order effects in modelling the cosmic shear angular power spectra must be taken into account for Euclid. We identify which terms are of concern, and quantify their individual and cumulative impact on cosmological parameter inference from Euclid. We compute the values of these higher-order effects using analytic expressions, and calculate the impact on cosmological parameter estimation using the Fisher matrix formalism. We review 24 effects and find the following potentially need to be accounted for: the reduced shear approximation, magnification bias, source-lens clustering, source obscuration, local Universe effects, and the flat Universe assumption. Upon computing these explicitly, and calculating their cosmological parameter biases, using a maximum multipole of $\ell=5000$, we find that the magnification bias, source-lens clustering, source obscuration, and local Universe terms individually produce significant ($\,>0.25\sigma$) cosmological biases in one or more parameters, and accordingly must be accounted for. In total, over all effects, we find biases in $\Omega_{\rm m}$, $\Omega_{\rm b}$, $h$, and $\sigma_{8}$ of $0.73\sigma$, $0.28\sigma$, $0.25\sigma$, and $-0.79\sigma$, respectively, for flat $\Lambda$CDM. For the $w_0w_a$CDM case, we find biases in $\Omega_{\rm m}$, $\Omega_{\rm b}$, $h$, $n_{\rm s}$, $\sigma_{8}$, and $w_a$ of $1.49\sigma$, $0.35\sigma$, $-1.36\sigma$, $1.31\sigma$, $-0.84\sigma$, and $-0.35\sigma$, respectively; which are increased relative to the $\Lambda$CDM due to additional degeneracies as a function of redshift and scale.

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Title: Euclid preparation: XXXVI. Modelling of the weak lensing angular power spectrum
Creators - without role: A.C. Deshpande
T. Kitching
A. Hall
M.L. Brown
N. Aghanim - Institut d'Astrophysique Spatiale
L. Amendola
N. Auricchio
M. Baldi
R. Bender
D. Bonino
E. Branchini
M. Brescia
J. Brinchmann
S. Camera
G.P. Candini
V. Capobianco
C. Carbone
V.F. Cardone
J. Carretero
F.J. Castander
M. Castellano
S. Cavuoti
A. Cimatti
R. Cledassou - Centre National de la Recherche Scientifique
G. Congedo
C.J. Conselice
L. Conversi
L. Corcione
F. Courbin
M. Cropper
A. Da Silva
H. Degaudenzi
Marian Douspis - Institut d'Astrophysique Spatiale
F. Dubath
C.A.J. Duncan
X. Dupac
S. Farrens - Commissariat à l'Énergie Atomique et aux Énergies Alternatives
S. Ferriol - Institut de Physique des 2 Infinis de Lyon
P. Fosalba
M. Frailis
E. Franceschi
M. Fumana
S. Galeotta
B. Garilli
B. Gillis
C. Giocoli
A. Grazian
F. Grupp
S.V.H. Haugan
H. Hoekstra
W. Holmes
A. Hornstrup
P. Hudelot - Institut d'Astrophysique de Paris
K. Jahnke
S. Kermiche - Centre de physique des particules de Marseille
M. Kilbinger - Astrophysique, Instrumentation et Modélisation
M. Kunz
H. Kurki-Suonio
S. Ligori
P.B. Lilje
I. Lloro
E. Maiorano
O. Mansutti
O. Marggraf
K. Markovic
F. Marulli
R. Massey
S. Mei - Université Paris Cité
Y. Mellier - Institut d'Astrophysique de Paris
M. Meneghetti
G. Meylan
L. Moscardini
S.-M. Niemi
J.W. Nightingale
T. Nutma
C. Padilla
S. Paltani
F. Pasian
K. Pedersen
V. Pettorino - Commissariat à l'Énergie Atomique et aux Énergies Alternatives
S. Pires - Commissariat à l'Énergie Atomique et aux Énergies Alternatives
G. Polenta
M. Poncet - Centre National d'Études Spatiales
L.A. Popa
F. Raison
A. Renzi
J. Rhodes
G. Riccio
E. Romelli
M. Roncarelli
E. Rossetti
R. Saglia
D. Sapone
B. Sartoris
P. Schneider
T. Schrabback
A. Secroun - Centre de physique des particules de Marseille
G. Seidel
S. Serrano
C. Sirignano
G. Sirri
L. Stanco
P. Tallada-Crespí
I. Tereno
R. Toledo-Moreo
F. Torradeflot
I. Tutusaus - Institut de Recherche en Astrophysique et Planétologie
E.A. Valentijn
L. Valenziano
T. Vassallo
Y. Wang
J. Weller
A. Zacchei
G. Zamorani
J. Zoubian - Centre de physique des particules de Marseille
S. Andreon
S. Bardelli
A. Boucaud - Université Paris Cité
E. Bozzo
C. Colodro-Conde
D. Di Ferdinando
G. Fabbian
M. Farina
J. Graciá-Carpio
E. Keihänen
V. Lindholm
N. Mauri
V. Scottez - Institut d'Astrophysique de Paris
M. Tenti
E. Zucca
Y. Akrami - Laboratoire d’Etudes du Rayonnement et de la Matière en Astrophysique et Atmosphères
C. Baccigalupi
A. Balaguera-Antolínez
M. Ballardini
F. Bernardeau - Institut de Physique Théorique
A. Biviano
A. Blanchard - Institut de Recherche en Astrophysique et Planétologie
A.S. Borlaff
C. Burigana
R. Cabanac - Institut de Recherche en Astrophysique et Planétologie
A. Cappi - Lagrange Laboratory
C.S. Carvalho
S. Casas
G. Castignani
T. Castro
K.C. Chambers
A.R. Cooray
J. Coupon
H.M. Courtois - Institute of Nuclear Physics of Lyon
S. Davini
S. de la Torre - Château Gombert
G. de Lucia
G. Desprez
Herve Dole - Institut d'Astrophysique Spatiale
J.A. Escartin
S. Escoffier - Centre de physique des particules de Marseille
I. Ferrero
F. Finelli
J. Garcia-Bellido
K. George
F. Giacomini
G. Gozaliasl
H. Hildebrandt
J.J.E. Kajava
V. Kansal - Astrophysique, Instrumentation et Modélisation
C.C. Kirkpatrick
L. Legrand
A. Loureiro
J. Macias-Perez - Laboratoire de Physique Subatomique et de Cosmologie
M. Magliocchetti
G. Mainetti - Centre de Calcul de l’Institut National de Physique Nucléaire et de Physique des Particules
R. Maoli
M. Martinelli
N. Martinet - Laboratoire d’Astrophysique de Marseille
C.J.A.P. Martins
S. Matthew
L. Maurin - Institut d'Astrophysique Spatiale
R.B. Metcalf
P. Monaco
G. Morgante
S. Nadathur
A.A. Nucita
L. Patrizii
A. Peel
J. Pollack - CEA Grenoble
V. Popa
C. Porciani
D. Potter
A. Pourtsidou
M. Pöntinen
P. Reimberg - Institut d'Astrophysique de Paris
A.G. Sánchez
Z. Sakr - Institut de Recherche en Astrophysique et Planétologie
A. Schneider
E. Sefusatti
M. Sereno
A. Shulevski
A. Spurio Mancini
J. Steinwagner
R. Teyssier
M. Viel
I.A. Zinchenko
P. Fleury - Institut de Physique Théorique
Publication Details: Astronomy & Astrophysics - A&A, Vol.684
Identifiers: 9934181009311
Academic Unit: Laboratoire Univers et Particules de Montpellier - LUPM
Language: English
Resource Type: Journal article
Local Fields: hal-03998732