Publications (17)
Impact of assembly bias on clustering plus weak lensing cosmological analysis
R. Paviot, A. Rocher, S. Codis +3
Analytical models of galaxy-halo connection such as the Halo Occupation Distribution (HOD) model have been widely used over the past decades as a means to intensively test perturba…
Euclid Preparation. XXVIII. Forecasts for ten different higher-order weak lensing statistics
Euclid Collaboration, V. Ajani, M. Baldi +211
Recent cosmic shear studies have shown that higher-order statistics (HOS) developed by independent teams now outperform standard two-point estimators in terms of statistical precis…
Encircling the dark: constraining dark energy via cosmic density in spheres
S. Codis, C. Pichon, F. Bernardeau +2
The recently published analytic probability density function for the mildly non-linear cosmic density field within spherical cells is used to build a simple but accurate maximum li…
Galaxy evolution in the metric of the Cosmic Web
K. Kraljic, S. Arnouts, C. Pichon +19
The role of the cosmic web in shaping galaxy properties is investigated in the GAMA spectroscopic survey in the redshift range . The stellar mass, du…
Galaxies flowing in the oriented saddle frame of the cosmic web
K. Kraljic, C. Pichon, Y. Dubois +12
The strikingly anisotropic large-scale distribution of matter made of an extended network of voids delimited by sheets, themselves segmented by filaments, within which matter flows…
Weak lensing in the Horizon-AGN simulation lightcone. Small scale baryonic effects
C. Gouin, R. Gavazzi, C. Pichon +6
Context. Accurate model predictions including the physics of baryons are required to make the most of the upcoming large cosmological surveys devoted to gravitational lensing. The…
Multipolar moments of weak lensing signal around clusters. Weighing filaments in harmonic space
C. Gouin, R. Gavazzi, S. Codis +3
Context. Upcoming weak lensing surveys such as Euclid will provide an unprecedented opportunity to quantify the geometry and topology of the cosmic web, in particular in the vicini…
Beyond Kaiser bias: mildly non-linear two-point statistics of densities in distant spheres
C. Uhlemann, S. Codis, J. Kim +5
Simple parameter-free analytic bias functions for the two-point correlation of densities in spheres at large separation are presented. These bias functions generalize the so-called…
How does the cosmic web impact assembly bias?
M. Musso, C. Cadiou, C. Pichon +3
The mass, accretion rate and formation time of dark matter haloes near proto-filaments (identified as saddle points of the potential) are analytically predicted using a conditional…
Galaxy orientation with the cosmic web across cosmic time
S. Codis, A. Jindal, N. E. Chisari +4
This work investigates the alignment of galactic spins with the cosmic web across cosmic time using the cosmological hydrodynamical simulation Horizon-AGN. The cosmic web structure…
Dissecting the Perseus-Pisces supercluster observed with CFHT-MegaCam: Exploring late-type galaxy shape alignments within the local cosmic web
M. Mondelin, S. Codis, J. -C. Cuillandre +2
Intrinsic alignments of galaxy shapes are a major systematic for weak gravitational lensing and provide insight into how galaxies acquire orientations within the cosmic web. Most s…
Euclid: Early Release Observations -- Overview of the Perseus cluster and analysis of its luminosity and stellar mass functions
J. -C. Cuillandre, M. Bolzonella, A. Boselli +199
The Euclid ERO programme targeted the Perseus cluster of galaxies, gathering deep data in the central region of the cluster over 0.7 square degree, corresponding to approximately 0…
Euclid: Early Release Observations -- The surface brightness and colour profiles of the far outskirts of galaxies in the Perseus cluster
M. Mondelin, F. Bournaud, J. -C. Cuillandre +110
The Perseus field captured by Euclid as part of its Early Release Observations provides a unique opportunity to study cluster environment ranging from outskirts to dense regions. L…
Euclid: Early Release Observations -- Programme overview and pipeline for compact- and diffuse-emission photometry
J. -C. Cuillandre, E. Bertin, M. Bolzonella +260
The Euclid ERO showcase Euclid's capabilities in advance of its main mission, targeting 17 astronomical objects, from galaxy clusters, nearby galaxies, globular clusters, to star-f…
Euclid. I. Overview of the Euclid mission
Euclid Collaboration, Y. Mellier, Abdurro'uf +1134
The current standard model of cosmology successfully describes a variety of measurements, but the nature of its main ingredients, dark matter and dark energy, remains unknown. Eucl…
Euclid preparation. Testing analytic models of galaxy intrinsic alignments in the Euclid Flagship simulation
Euclid Collaboration, R. Paviot, B. Joachimi +293
We model intrinsic alignments (IA) in Euclid's Flagship simulation to investigate its impact on Euclid's weak lensing signal. Our IA implementation in the Flagship simulation takes…
Dissecting the Perseus-Pisces supercluster observed with CFHT-MegaCam: Investigating environmental effects on galaxy morphology
M. Mondelin, S. Codis, J-C. Cuillandre +4
The discovery of the large-scale structure has transformed our view of galaxy formation and evolution. Filaments of the cosmic web provide key environments that channel the growth…