$Euclid$: The search for primordial features
M Ballardini
,
Y Akrami
,
F Finelli
,
D Karagiannis
,
B Li
,
Y Li
,
Z Sakr
(1)
,
D Sapone
,
A Achúcarro
,
M Baldi
,
N Bartolo
,
G Cañas-Herrera
,
S Casas
,
R Murgia
,
H.-A Winther
,
M Viel
,
A Andrews
,
J Jasche
(2)
,
G Lavaux
(2)
,
D.K Hazra
,
D Paoletti
,
J Valiviita
,
A Amara
,
S Andreon
,
N Auricchio
,
P Battaglia
,
D Bonino
,
E Branchini
,
M Brescia
,
J Brinchmann
,
S Camera
,
V Capobianco
,
C Carbone
,
J Carretero
,
M Castellano
,
S Cavuoti
,
A Cimatti
,
G Congedo
,
L Conversi
(3)
,
Y Copin
(4)
,
L Corcione
,
F Courbin
,
H.M Courtois
(4)
,
A da Silva
,
H Degaudenzi
,
F Dubath
,
X Dupac
,
M Farina
,
S Farrens
(5)
,
M Frailis
,
E Franceschi
,
M Fumana
,
S Galeotta
,
B Gillis
,
C Giocoli
,
A Grazian
,
F Grupp
,
S.V.H Haugan
,
W Holmes
,
F Hormuth
,
A Hornstrup
,
P Hudelot
(2)
,
K Jahnke
,
S Kermiche
(6)
,
A Kiessling
,
M Kunz
,
H Kurki-Suonio
,
P.B Lilje
,
V Lindholm
,
I Lloro
,
E Maiorano
,
O Mansutti
,
O Marggraf
,
N Martinet
(7)
,
F Marulli
,
R Massey
,
E Medinaceli
,
S Mei
(8)
,
Y Mellier
(2)
,
M Meneghetti
,
E Merlin
,
G Meylan
,
M Moresco
,
L Moscardini
,
E Munari
,
S.-M Niemi
,
C Padilla
,
S Paltani
,
F Pasian
,
K Pedersen
,
W.J Percival
,
V Pettorino
(5)
,
S Pires
(5)
,
G Polenta
,
M Poncet
(9)
,
L.A Popa
,
L Pozzetti
,
F Raison
,
A Renzi
,
J Rhodes
,
G Riccio
,
E Romelli
,
M Roncarelli
,
R Saglia
,
B Sartoris
,
T Schrabback
,
A Secroun
(6)
,
G Seidel
,
S Serrano
,
C Sirignano
,
G Sirri
,
L Stanco
,
J.-L Starck
(5)
,
C Surace
(7)
,
P Tallada-Crespí
,
A.N Taylor
,
I Tereno
,
R Toledo-Moreo
,
F Torradeflot
,
I Tutusaus
(1)
,
E.A Valentijn
,
L Valenziano
,
T Vassallo
,
A Veropalumbo
,
Y Wang
,
J Weller
,
G Zamorani
,
J Zoubian
(6)
,
V Scottez
(2, 10)
1
IRAP -
Institut de recherche en astrophysique et planétologie
2 IAP - Institut d'Astrophysique de Paris
3 ESA - Agence Spatiale Européenne = European Space Agency
4 IP2I Lyon - Institut de Physique des 2 Infinis de Lyon
5 AIM (UMR7158 / UMR_E_9005 / UM_112) - Astrophysique Interprétation Modélisation
6 CPPM - Centre de Physique des Particules de Marseille
7 LAM - Laboratoire d'Astrophysique de Marseille
8 APC (UMR_7164) - AstroParticule et Cosmologie
9 CNES - Centre National d'Études Spatiales [Toulouse]
10 METRICS - Evaluation des technologies de santé et des pratiques médicales - ULR 2694
2 IAP - Institut d'Astrophysique de Paris
3 ESA - Agence Spatiale Européenne = European Space Agency
4 IP2I Lyon - Institut de Physique des 2 Infinis de Lyon
5 AIM (UMR7158 / UMR_E_9005 / UM_112) - Astrophysique Interprétation Modélisation
6 CPPM - Centre de Physique des Particules de Marseille
7 LAM - Laboratoire d'Astrophysique de Marseille
8 APC (UMR_7164) - AstroParticule et Cosmologie
9 CNES - Centre National d'Études Spatiales [Toulouse]
10 METRICS - Evaluation des technologies de santé et des pratiques médicales - ULR 2694
M Ballardini
- Function : Author
Y Akrami
- Function : Author
F Finelli
- Function : Author
D Karagiannis
- Function : Author
B Li
- Function : Author
Y Li
- Function : Author
D Sapone
- Function : Author
A Achúcarro
- Function : Author
M Baldi
- Function : Author
N Bartolo
- Function : Author
G Cañas-Herrera
- Function : Author
S Casas
- Function : Author
R Murgia
- Function : Author
H.-A Winther
- Function : Author
M Viel
- Function : Author
A Andrews
- Function : Author
G Lavaux
- Function : Author
- PersonId : 738873
- IdHAL : g-lavaux
- ORCID : 0000-0003-0143-8891
- IdRef : 12830040X
D.K Hazra
- Function : Author
D Paoletti
- Function : Author
J Valiviita
- Function : Author
A Amara
- Function : Author
S Andreon
- Function : Author
N Auricchio
- Function : Author
P Battaglia
- Function : Author
D Bonino
- Function : Author
E Branchini
- Function : Author
M Brescia
- Function : Author
J Brinchmann
- Function : Author
S Camera
- Function : Author
V Capobianco
- Function : Author
C Carbone
- Function : Author
J Carretero
- Function : Author
M Castellano
- Function : Author
S Cavuoti
- Function : Author
A Cimatti
- Function : Author
G Congedo
- Function : Author
L Corcione
- Function : Author
F Courbin
- Function : Author
A da Silva
- Function : Author
H Degaudenzi
- Function : Author
F Dubath
- Function : Author
X Dupac
- Function : Author
M Farina
- Function : Author
M Frailis
- Function : Author
E Franceschi
- Function : Author
M Fumana
- Function : Author
S Galeotta
- Function : Author
B Gillis
- Function : Author
C Giocoli
- Function : Author
A Grazian
- Function : Author
F Grupp
- Function : Author
S.V.H Haugan
- Function : Author
W Holmes
- Function : Author
F Hormuth
- Function : Author
A Hornstrup
- Function : Author
K Jahnke
- Function : Author
A Kiessling
- Function : Author
M Kunz
- Function : Author
H Kurki-Suonio
- Function : Author
P.B Lilje
- Function : Author
V Lindholm
- Function : Author
I Lloro
- Function : Author
E Maiorano
- Function : Author
O Mansutti
- Function : Author
O Marggraf
- Function : Author
F Marulli
- Function : Author
R Massey
- Function : Author
E Medinaceli
- Function : Author
M Meneghetti
- Function : Author
E Merlin
- Function : Author
G Meylan
- Function : Author
M Moresco
- Function : Author
L Moscardini
- Function : Author
E Munari
- Function : Author
S.-M Niemi
- Function : Author
C Padilla
- Function : Author
S Paltani
- Function : Author
F Pasian
- Function : Author
K Pedersen
- Function : Author
W.J Percival
- Function : Author
G Polenta
- Function : Author
L.A Popa
- Function : Author
L Pozzetti
- Function : Author
F Raison
- Function : Author
A Renzi
- Function : Author
J Rhodes
- Function : Author
G Riccio
- Function : Author
E Romelli
- Function : Author
M Roncarelli
- Function : Author
R Saglia
- Function : Author
B Sartoris
- Function : Author
T Schrabback
- Function : Author
G Seidel
- Function : Author
S Serrano
- Function : Author
C Sirignano
- Function : Author
G Sirri
- Function : Author
L Stanco
- Function : Author
P Tallada-Crespí
- Function : Author
A.N Taylor
- Function : Author
I Tereno
- Function : Author
R Toledo-Moreo
- Function : Author
F Torradeflot
- Function : Author
I Tutusaus
- Function : Author
- PersonId : 1360271
- ORCID : 0000-0002-3199-0399
- IdRef : 241364418
E.A Valentijn
- Function : Author
L Valenziano
- Function : Author
T Vassallo
- Function : Author
A Veropalumbo
- Function : Author
Y Wang
- Function : Author
J Weller
- Function : Author
G Zamorani
- Function : Author
Abstract
Primordial features, in particular oscillatory signals, imprinted in the primordial power spectrum of density perturbations represent a clear window of opportunity for detecting new physics at high-energy scales. Future spectroscopic and photometric measurements from the $Euclid$ space mission will provide unique constraints on the primordial power spectrum, thanks to the redshift coverage and high-accuracy measurement of nonlinear scales, thus allowing us to investigate deviations from the standard power-law primordial power spectrum. We consider two models with primordial undamped oscillations superimposed on the matter power spectrum, one linearly spaced in $k$-space the other logarithmically spaced in $k$-space. We forecast uncertainties applying a Fisher matrix method to spectroscopic galaxy clustering, weak lensing, photometric galaxy clustering, cross correlation between photometric probes, spectroscopic galaxy clustering bispectrum, CMB temperature and $E$-mode polarization, temperature-polarization cross correlation, and CMB weak lensing. We also study a nonlinear density reconstruction method to retrieve the oscillatory signals in the primordial power spectrum. We find the following percentage relative errors in the feature amplitude with $Euclid$ primary probes for the linear (logarithmic) feature model: 21% (22%) in the pessimistic settings and 18% (18%) in the optimistic settings at 68.3% confidence level (CL) using GC$_{\rm sp}$+WL+GC$_{\rm ph}$+XC. Combining all the sources of information explored expected from $Euclid$ in combination with future SO-like CMB experiment, we forecast ${\cal A}_{\rm lin} \simeq 0.010 \pm 0.001$ at 68.3% CL and ${\cal A}_{\rm log} \simeq 0.010 \pm 0.001$ for GC$_{\rm sp}$(PS rec + BS)+WL+GC$_{\rm ph}$+XC+SO-like both for the optimistic and pessimistic settings over the frequency range $(1,\,10^{2.1})$.
Domains
Astrophysics [astro-ph]
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