Search Results - "Aghanim, N."
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The COSMOS-UltraVISTA stellar-to-halo mass relationship: new insights on galaxy formation efficiency out to z ∼ 5
Published in Monthly notices of the Royal Astronomical Society (11-07-2019)“…Abstract Using precise galaxy stellar mass function measurements in the COSMOS field we determine the stellar-to-halo mass relationship (SHMR) using a…”
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Non-Gaussianity of the cosmic infrared background anisotropies - I. Diagrammatic formalism and application to the angular bispectrum
Published in Monthly notices of the Royal Astronomical Society (21-03-2014)“…We present the first halo model based description of the cosmic infrared background (CIB) non-Gaussianity (NG) that is fully parametric. To this end, we…”
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New horizons in cosmology with spectral distortions of the cosmic microwave background
Published in Experimental astronomy (01-06-2021)“…This Voyage 2050 paper highlights the unique science opportunities using spectral distortions of the cosmic microwave background (CMB). CMB spectral…”
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Projection effects on pressure profiles: A case study of the Virgo replica
Published in EPJ Web of conferences (2024)“…An accurate mass calibration of galaxy clusters is a crucial step towards precise constraints on the cosmological parameters σ 8 and Ω m from clusters. Cluster…”
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Constraining the mass and redshift evolution of the hydrostatic mass bias using the gas mass fraction in galaxy clusters
Published in EPJ Web of conferences (2024)“…The gas mass fraction in galaxy clusters is a quantity which can be used as a robust cosmological probe. It is however subject to various effects from the…”
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Non-Gaussianity of the cosmic infrared background anisotropies - II. Predictions of the bispectrum and constraints forecast
Published in Monthly notices of the Royal Astronomical Society (21-03-2014)“…Using a full analytical computation of the bispectrum based on the halo model together with the halo occupation number, we derive the bispectrum of the cosmic…”
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Characterization of the non-Gaussianity of radio and IR point sources at CMB frequencies
Published in Monthly notices of the Royal Astronomical Society (01-04-2012)“…This study, using publicly available simulations, focuses on the characterization of the non-Gaussianity produced by radio point sources and by infrared (IR)…”
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The ISW-tSZ cross-correlation: integrated Sachs-Wolfe extraction out of pure cosmic microwave background data
Published in Monthly notices of the Royal Astronomical Society (01-12-2011)“…If dark energy introduces an acceleration in the universal expansion then large-scale gravitational potential wells should be shrinking, causing a blueshift in…”
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Optical Identifications of High-Redshift Galaxy Clusters from the Planck Sunyaev–Zeldovich Survey
Published in Astronomy letters (01-05-2018)“…We present the results of optical identifications and spectroscopic redshift measurements for galaxy clusters from the second Planck catalogue of…”
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The Sunyaev–Zel'dovich contribution in CMB analyses
Published in Monthly notices of the Royal Astronomical Society (21-05-2010)“…The Sunyaev–Zel'dovich (SZ) effect has long been identified as one of the most important secondary effects of the cosmic microwave background. On the one hand,…”
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A multifrequency approach of the cosmological parameter estimation in the presence of extragalactic point sources
Published in Monthly notices of the Royal Astronomical Society (11-10-2012)“…Abstract We present a multifrequency approach which optimizes the constraints on cosmological parameters with respect to extragalactic point source and…”
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SZ and CMB reconstruction using generalized morphological component analysis
Published in Statistical methodology (01-07-2008)“…In the last decade, the study of cosmic microwave background (CMB) data has become one of the most powerful tools for studying and understanding the Universe…”
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Additional spectroscopic redshift measurements for galaxy clusters from the first Planck catalogue
Published in Astronomy letters (01-02-2016)“…We present the results of spectroscopic redshift measurements for the galaxy clusters from the first all-sky Planck catalogue that have been mostly identified…”
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Constraining topology in harmonic space
Published in Physical review. D, Particles, fields, gravitation, and cosmology (01-01-2006)Get full text
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Reionisation and its implications on the CMB
Published in New astronomy reviews (01-03-2001)“…The universe today seems totally ionised, however, we know from standard cosmological models that it has underwent a phase transition between ionisation and…”
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A Sunyaev-Zeldovich Map of the Massive Core in the Luminous X-Ray Cluster RX J1347–1145
Published in The Astrophysical journal (10-07-1999)“…the territorial actor is the daily craftsman of his cultural space. The need for a continuity of the endogenous exchange is one of the values on which is built…”
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Cosmological Non-Gaussian Signature Detection: Comparing Performance of Different Statistical Tests
Published in EURASIP journal on advances in signal processing (21-08-2005)Get full text
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Joint analysis of BICEP2/keck array and Planck Data
Published in Physical review letters (13-03-2015)“…We report the results of a joint analysis of data from BICEP2/Keck Array and Planck. BICEP2 and Keck Array have observed the same approximately 400 deg^{2}…”
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Cosmological Non-Gaussian Signature Detection: Comparing Performance of Different Statistical Tests
Published in EURASIP journal on advances in signal processing (14-09-2005)“…: Currently, it appears that the best method for non-Gaussianity detection in the cosmic microwave background (CMB) consists in calculating the kurtosis of the…”
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Euclid preparation – XXIII. Derivation of galaxy physical properties with deep machine learning using mock fluxes and H-band images
Published in Monthly notices of the Royal Astronomical Society (15-02-2023)“…ABSTRACT Next-generation telescopes, like Euclid, Rubin/LSST, and Roman, will open new windows on the Universe, allowing us to infer physical properties for…”
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