Search Results - "Jasche, Jens"

Bayesian physical reconstruction of initial conditions from large-scale structure surveys by Jasche, Jens, Wandelt, Benjamin D.

“…We present a fully probabilistic, physical model of the non-linearly evolved density field, as probed by realistic galaxy surveys. Our model is valid in the…”
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Quantifying the rarity of the local super-volume by Stopyra, Stephen, Peiris, Hiranya V, Pontzen, Andrew, Jasche, Jens, Natarajan, Priyamvada

“…ABSTRACT We investigate the extent to which the number of clusters of mass exceeding $10^{15}\, M_{\odot }\, h^{-1}$ within the local super-volume ($\lt…”
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Bayesian non-linear large-scale structure inference of the Sloan Digital Sky Survey Data Release 7 by Jasche, Jens, Kitaura, Francisco S., Li, Cheng, Enßlin, Torsten A.

“…In this work, we present the first non-linear, non-Gaussian full Bayesian large-scale structure analysis of the cosmic density field conducted so far. The…”
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IMAGINE: Modeling the Galactic Magnetic Field by Haverkorn, Marijke, Boulanger, François, Enßlin, Torsten, Hörandel, Jörg, Jaffe, Tess, Jasche, Jens, Rachen, Jörg, Shukurov, Anvar

“…The IMAGINE Consortium aims to bring modeling of the magnetic field of the Milky Way to the next level by using Bayesian inference. IMAGINE includes an…”
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Unmasking the masked Universe: the 2M++ catalogue through Bayesian eyes by Lavaux, Guilhem, Jasche, Jens

“…This work describes a full Bayesian analysis of the Nearby Universe as traced by galaxies of the 2M++ survey. The analysis is run in two sequential steps. The…”
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Matrix-free large-scale Bayesian inference in cosmology by Jasche, Jens, Lavaux, Guilhem

“…In this work we propose a new matrix-free implementation of the Wiener sampler which is traditionally applied to high-dimensional analysis when signal…”
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Primordial power spectrum and cosmology from black-box galaxy surveys by Leclercq, Florent, Enzi, Wolfgang, Jasche, Jens, Heavens, Alan

“…ABSTRACT We propose a new, likelihood-free approach to inferring the primordial matter power spectrum and cosmological parameters from arbitrarily complex…”
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The fifth force in the local cosmic web by Desmond, Harry, Ferreira, Pedro G, Lavaux, Guilhem, Jasche, Jens

“…ABSTRACT Extensions of the standard models of particle physics and cosmology often lead to long-range fifth forces with properties dependent on gravitational…”
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Reconstructing the gravitational field of the local Universe by Desmond, Harry, Ferreira, Pedro G, Lavaux, Guilhem, Jasche, Jens

“…Abstract Tests of gravity at the galaxy scale are in their infancy. As a first step to systematically uncovering the gravitational significance of galaxies, we…”
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Bayesian field-level inference of primordial non-Gaussianity using next-generation galaxy surveys by Andrews, Adam, Jasche, Jens, Lavaux, Guilhem, Schmidt, Fabian

“…ABSTRACT Detecting and measuring a non-Gaussian signature of primordial origin in the density field is a major science goal of next-generation galaxy surveys…”
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Fast Hamiltonian sampling for large-scale structure inference by Jasche, Jens, Kitaura, Francisco S.

“…In this paper we present a new and efficient Bayesian method for non-linear three-dimensional large-scale structure inference. We employ a Hamiltonian Monte…”
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Bayesian inference of initial conditions from non-linear cosmic structures using field-level emulators by Doeser, Ludvig, Jamieson, Drew, Stopyra, Stephen, Lavaux, Guilhem, Leclercq, Florent, Jasche, Jens

“…ABSTRACT Analysing next-generation cosmological data requires balancing accurate modelling of non-linear gravitational structure formation and computational…”
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Towards accurate field-level inference of massive cosmic structures by Stopyra, Stephen, Peiris, Hiranya V, Pontzen, Andrew, Jasche, Jens, Lavaux, Guilhem

“…ABSTRACT We investigate the accuracy requirements for field-level inference of cluster and void masses using data from galaxy surveys. We introduce a two-step…”
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Field-based physical inference from peculiar velocity tracers by Prideaux-Ghee, James, Leclercq, Florent, Lavaux, Guilhem, Heavens, Alan, Jasche, Jens

“…ABSTRACT We present a proof-of-concept Bayesian hierarchical modelling approach to reconstruct the initial cosmic matter density field constrained by peculiar…”
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An antihalo void catalogue of the Local Super-Volume by Stopyra, Stephen, Peiris, Hiranya V, Pontzen, Andrew, Jasche, Jens, Lavaux, Guilhem

“…ABSTRACT We construct an antihalo void catalogue of 150 voids with radii $R \gt 10\, h^{-1}\mathrm{\, Mpc}$ in the Local Super-Volume ($\lt 135\,…”
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METHODS FOR BAYESIAN POWER SPECTRUM INFERENCE WITH GALAXY SURVEYS by JASCHE, JENS, Wandelt, Benjamin D

“…We derive and implement a full Bayesian large scale structure inference method aiming at precision recovery of the cosmological power spectrum from galaxy…”
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An Anti-halo Void Catalogue of the Local Super-Volume by Stopyra, Stephen, Peiris, Hiranya V, Pontzen, Andrew, Jasche, Jens, Lavaux, Guilhem

“…We construct an anti-halo void catalogue of $150$ voids with radii $R > 10\,h^{-1}\mathrm{\,Mpc}$ in the Local Super-Volume ($<135\,h^{-1}\mathrm{\,Mpc}$ from…”
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Bayesian inference from photometric redshift surveys by Jasche, Jens, Wandelt, Benjamin D.

“…Abstract We show how to enhance the redshift accuracy of surveys consisting of tracers with highly uncertain positions along the line of sight. This increased…”
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The SIBELIUS Project: E Pluribus Unum by Sawala, Till, McAlpine, Stuart, Jasche, Jens, Lavaux, Guilhem, Jenkins, Adrian, Johansson, Peter H, Frenk, Carlos S

“…ABSTRACT We introduce ‘Simulations Beyond The Local Universe’ (SIBELIUS) that connect the Local Group (LG) to its cosmic environment. We show that introducing…”
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SIBELIUS-DARK: a galaxy catalogue of the local volume from a constrained realization simulation by McAlpine, Stuart, Helly, John C, Schaller, Matthieu, Sawala, Till, Lavaux, Guilhem, Jasche, Jens, Frenk, Carlos S, Jenkins, Adrian, Lucey, John R, Johansson, Peter H

“…ABSTRACT We present sibelius-dark, a constrained realization simulation of the local volume to a distance of 200 Mpc from the Milky Way. sibelius-dark is the…”
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