Search Results - "Gheller, C"
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A survey of the thermal and non-thermal properties of cosmic filaments
Published in Monthly notices of the Royal Astronomical Society (11-06-2019)“…ABSTRACT In this paper, we exploit a large suite of enzo cosmological magneto-hydrodynamical simulations adopting uniform mesh resolution, to investigate the…”
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Convolutional deep denoising autoencoders for radio astronomical images
Published in Monthly notices of the Royal Astronomical Society (01-01-2022)“…ABSTRACT We apply a Machine Learning technique known as Convolutional Denoising Autoencoder to denoise synthetic images of state-of-the-art radio telescopes,…”
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On the amplification of magnetic fields in cosmic filaments and galaxy clusters
Published in Monthly notices of the Royal Astronomical Society (21-12-2014)“…The amplification of primordial magnetic fields via a small-scale turbulent dynamo during structure formation might be able to explain the observed magnetic…”
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Multiwavelength cross-correlation analysis of the simulated cosmic web
Published in Monthly notices of the Royal Astronomical Society (01-06-2020)“…ABSTRACT We used magnetohydrodynamical cosmological simulations to investigate the cross-correlation between different observables (i.e. X-ray emission,…”
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Constraining the efficiency of cosmic ray acceleration by cluster shocks
Published in Monthly notices of the Royal Astronomical Society (11-06-2016)“…We study the acceleration of cosmic rays by collisionless structure formation shocks with enzo grid simulations. Data from the Fermi satellite enable the use…”
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Turbulence and vorticity in Galaxy clusters generated by structure formation
Published in Monthly notices of the Royal Astronomical Society (01-01-2017)“…Turbulence is a key ingredient for the evolution of the intracluster medium, whose properties can be predicted with high-resolution numerical simulations. We…”
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Shock waves in Eulerian cosmological simulations: main properties and acceleration of cosmic rays
Published in Monthly notices of the Royal Astronomical Society (21-05-2009)“…Large-scale shocks are responsible for the heating of the intracluster medium and can be important sources of cosmic rays (CRs) in the Universe. However, the…”
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The turbulent pressure support in galaxy clusters revisited
Published in Monthly notices of the Royal Astronomical Society. Letters (21-11-2018)“…ABSTRACT Due to their late formation in cosmic history, clusters of galaxies are not fully in hydrostatic equilibrium and the gravitational pull of their mass…”
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Radio U-Net: a convolutional neural network to detect diffuse radio sources in galaxy clusters and beyond
Published in Monthly notices of the Royal Astronomical Society (01-09-2024)“…ABSTRACT The forthcoming generation of radio telescope arrays promises significant advancements in sensitivity and resolution, enabling the identification and…”
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Deep learning based detection of cosmological diffuse radio sources
Published in Monthly notices of the Royal Astronomical Society (01-11-2018)Get full text
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On the alignment of haloes, filaments and magnetic fields in the simulated cosmic web
Published in Monthly notices of the Royal Astronomical Society (01-05-2021)“…ABSTRACT The continuous flow of gas and dark matter across scales in the cosmic web can generate correlated dynamical properties of haloes and filaments (and…”
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Probing the origin of extragalactic magnetic fields with Fast Radio Bursts
Published in Monthly notices of the Royal Astronomical Society (01-11-2018)Get full text
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Properties of cosmological filaments extracted from Eulerian simulations
Published in Monthly notices of the Royal Astronomical Society (21-10-2015)“…Using a new parallel algorithm implemented within the VisIt framework, we analysed large cosmological grid simulations to study the properties of baryons in…”
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Magnetic field evolution in cosmic filaments with LOFAR data
Published in Monthly notices of the Royal Astronomical Society (01-01-2023)“…ABSTRACT Measuring the magnetic field in cosmic filaments reveals how the Universe is magnetized and the process that magnetized it. Using the Rotation…”
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A radio ridge connecting two galaxy clusters in a filament of the cosmic web
Published in Science (American Association for the Advancement of Science) (07-06-2019)“…Galaxy clusters are the most massive gravitationally bound structures in the Universe. They grow by accreting smaller structures in a merging process that…”
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Evolution of cosmic filaments and of their galaxy population from MHD cosmological simulations
Published in Monthly notices of the Royal Astronomical Society (11-10-2016)“…Despite containing about a half of the total matter in the Universe, at most wavelengths the filamentary structure of the cosmic web is difficult to observe…”
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Orb5: A global electromagnetic gyrokinetic code using the PIC approach in toroidal geometry
Published in Computer physics communications (01-06-2020)“…This paper presents the current state of the global gyrokinetic code Orb5 as an update of the previous reference (Jolliet et al., 2007). The Orb5 code solves…”
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Thermal and non-thermal traces of AGN feedback: results from cosmological AMR simulations
Published in Monthly notices of the Royal Astronomical Society (01-01-2013)“…We investigate the observable effects of feedback from active galactic nuclei (AGN) on non-thermal components of the intracluster medium (ICM). We have…”
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A comparison of cosmological codes: properties of thermal gas and shock waves in large-scale structures
Published in Monthly notices of the Royal Astronomical Society (01-12-2011)“…Cosmological hydrodynamical simulations are a valuable tool for understanding the growth of large-scale structure and the observables connected with this. Yet,…”
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Interactive 3D visualization for theoretical virtual observatories
Published in Monthly notices of the Royal Astronomical Society (21-06-2018)“…Abstract Virtual observatories (VOs) are online hubs of scientific knowledge. They encompass a collection of platforms dedicated to the storage and…”
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