Publications associées à Classification de Vaucouleurs

Halo Mass-concentration Relation at the High-mass End

Jean-Paul Richard Kneib, Huanyuan Shan, Ginevra Favole

The concentration-mass (c-M) relation encodes key information about the assembly history of dark matter halos. However, its behavior at the high mass end has not been measured precisely in observations yet. In this paper, we report the measurement of the h ...

IOP Publishing Ltd2021

Tightening weak lensing constraints on the ellipticity of galaxy-scale dark matter haloes

Anand Stéphane Raichoor

Cosmological simulations predict that galaxies are embedded into triaxial dark matter haloes, which appear approximately elliptical in projection. Weak gravitational lensing allows us to constrain these halo shapes and thereby test the nature of dark matte ...

EDP SCIENCES S A2021

Controlling and leveraging small-scale information in tomographic galaxy-galaxy lensing

Jonathan Andrew Blazek

The tangential shear signal receives contributions from physical scales in the galaxy-matter correlation function well below the transverse scale at which it is measured. Since small scales are difficult to model, this non-locality has generally required s ...

OXFORD UNIV PRESS2020

H0LiCOW XII. Lens mass model of WFI2033-4723 and blind measurement of its time-delay distance and H-0

Frédéric Courbin, Hung-Hsu Chan, Vivien François Bonvin

We present the lens mass model of the quadruply-imaged gravitationally lensed quasar WFI2033 - 4723, and perform a blind cosmographical analysis based on this system. Our analysis combines (1) time-delay measurements from 14 yr of data obtained by the COSm ...

OXFORD UNIV PRESS2020

Machine-learning Classifiers for Intermediate Redshift Emission-line Galaxies

Jean-Paul Richard Kneib, Johan Comparat, David Schlegel

Classification of intermediate redshift (z = 0.3-0.8) emission line galaxies as star-forming galaxies, composite galaxies, active galactic nuclei (AGNs), or low-ionization nuclear emission regions (LINERs) using optical spectra alone was impossible because ...

IOP PUBLISHING LTD2019

Dark Energy Survey Year 1 results: constraints on intrinsic alignments and their colour dependence from galaxy clustering and weak lensing

Eduardo Sanchez, Jonathan Andrew Blazek

We perform a joint analysis of intrinsic alignments and cosmology using tomographic weak lensing, galaxy clustering, and galaxy-galaxy lensing measurements from Year 1 (Y1) of the Dark Energy Survey. We define early- and late-type subsamples, which are fou ...

2019

Euclid preparation V. Predicted yield of redshift 7 < z < 9 quasars from the wide survey

Georges Meylan, Yi Wang, Richard Massey

We provide predictions of the yield of 7 < z < 9 quasars from the Euclid wide survey, updating the calculation presented in the Euclid Red Book in several ways. We account for revisions to the Euclid near-infrared filter wavelengths; we adopt steeper rates ...

EDP SCIENCES S A2019

Core Cosmology Library: Precision Cosmological Predictions for LSST

Jonathan Andrew Blazek

The Core Cosmology Library (CCL) provides routines to compute basic cosmological observables to a high degree of accuracy, which have been verified with an extensive suite of validation tests. Predictions are provided for many cosmological quantities, incl ...

IOP PUBLISHING LTD2019

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Classification de Vaucouleurs

Halo Mass-concentration Relation at the High-mass End

Tightening weak lensing constraints on the ellipticity of galaxy-scale dark matter haloes

On the influence of halo mass accretion history on galaxy properties and assembly bias

Controlling and leveraging small-scale information in tomographic galaxy-galaxy lensing

H0LiCOW XII. Lens mass model of WFI2033-4723 and blind measurement of its time-delay distance and H-0

Machine-learning Classifiers for Intermediate Redshift Emission-line Galaxies

Dark Energy Survey Year 1 results: constraints on intrinsic alignments and their colour dependence from galaxy clustering and weak lensing

Euclid preparation V. Predicted yield of redshift 7 < z < 9 quasars from the wide survey

Core Cosmology Library: Precision Cosmological Predictions for LSST

Tidal Interactions and Mergers in Intermediate-redshift EDisCS Clusters

Graph Chatbot

Chattez avec Graph Search

Euclid preparation V. Predicted yield of redshift 7 < z < 9 quasars from the wide survey

Controlling and leveraging small-scale information in tomographic galaxy-galaxy lensing

On the influence of halo mass accretion history on galaxy properties and assembly bias

Halo Mass-concentration Relation at the High-mass End

Tidal Interactions and Mergers in Intermediate-redshift EDisCS Clusters

Tightening weak lensing constraints on the ellipticity of galaxy-scale dark matter haloes

Dark Energy Survey Year 1 results: constraints on intrinsic alignments and their colour dependence from galaxy clustering and weak lensing

Core Cosmology Library: Precision Cosmological Predictions for LSST

H0LiCOW XII. Lens mass model of WFI2033-4723 and blind measurement of its time-delay distance and H-0

Machine-learning Classifiers for Intermediate Redshift Emission-line Galaxies