Publications related to Galaxy filament

Euclid: Improving the efficiency of weak lensing shear bias calibration

Frédéric Courbin, Georges Meylan, Malte Tewes, Yi Wang, Richard Massey, Marcello Farina

To obtain an accurate cosmological inference from upcoming weak lensing surveys such as the one conducted by Euclid, the shear measurement requires calibration using galaxy image simulations. As it typically requires millions of simulated galaxy images and ...

Edp Sciences S A2024

Euclid: Validation of the MontePython forecasting tools

Frédéric Courbin, Georges Meylan, Jean-Luc Starck, Maurizio Martinelli, Julien Lesgourgues, Slobodan Ilic, Yi Wang, Richard Massey

Context. The Euclid mission of the European Space Agency will perform a survey of weak lensing cosmic shear and galaxy clustering in order to constrain cosmological models and fundamental physics. Aims. We expand and adjust the mock Euclid likelihoods of t ...

Les Ulis Cedex A2024

Hydrodynamical simulations of merging galaxy clusters: giant dark matter particle colliders, powered by gravity

David Richard Harvey, Richard Massey

Terrestrial particle accelerators collide charged particles, then watch the trajectory of outgoing debris - but they cannot manipulate dark matter. Fortunately, dark matter is the main component of galaxy clusters, which are continuously pulled together by ...

Oxford Univ Press2024

Euclid: Cosmology forecasts from the void-galaxy cross-correlation function with reconstruction

Frédéric Courbin, Georges Meylan, Yi Wang, Richard Massey

We have investigated the cosmological constraints that can be expected from measurement of the cross-correlation of galaxies with cosmic voids identified in the Euclid spectroscopic survey, which will include spectroscopic information for tens of millions ...

EDP SCIENCES S A2023

The Pristine dwarf galaxy survey-V. The edges of the dwarf galaxy Hercules

Pascale Jablonka, Nicolas Lawrence Etienne Longeard

We present a new spectroscopic study of 175 stars in the vicinity of the dwarf galaxy Hercules (d similar to 132 kpc) with data from the Anglo-Australian Telescope and its AAOmega spectrograph together with the Two Degree Field multi-object system to solve ...

OXFORD UNIV PRESS2023

DESI mock challenge Halo and galaxy catalogues with the bias assignment method

Cheng Zhao, Ginevra Favole, Yu Yu

Context. We present a novel approach to the construction of mock galaxy catalogues for large-scale structure analysis based on the distribution of dark matter halos obtained with effective bias models at the field level. Aims. We aim to produce mock galaxy ...

EDP SCIENCES S A2023

Limit on the intergalactic magnetic field from the ultrahigh-energy cosmic ray hotspot in the Perseus-Pisces region

Andrii Neronov, Oleg Kalashev

The Telescope Array Collaboration has reported an evidence for existence of a source of ultrahigh energy cosmic ray events in Perseus-Pisces supercluster. We show that the mere existence of such a source imposes an upper bound on the strength of intergalac ...

College Pk2023

Constraints on the Hubble constant from supernova Refsdal's reappearance

Martin Raoul Robert Millon, Mathilde Jauzac, Vivien François Bonvin, Anja Von der Linden

The gravitationally lensed supernova Refsdal appeared in multiple images produced through gravitational lensing by a massive foreground galaxy cluster. After the supernova appeared in 2014, lens models of the galaxy cluster predicted that an additional ima ...

Washington2023

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Galaxy filament

Euclid: Improving the efficiency of weak lensing shear bias calibration

Euclid: Validation of the MontePython forecasting tools

GHOST commissioning science results - II: a very metal-poor star witnessing the early galactic assembly

Hydrodynamical simulations of merging galaxy clusters: giant dark matter particle colliders, powered by gravity

Euclid: Cosmology forecasts from the void-galaxy cross-correlation function with reconstruction

The Pristine dwarf galaxy survey-V. The edges of the dwarf galaxy Hercules

DESI mock challenge Halo and galaxy catalogues with the bias assignment method

Limit on the intergalactic magnetic field from the ultrahigh-energy cosmic ray hotspot in the Perseus-Pisces region

Constraints on the Hubble constant from supernova Refsdal's reappearance

Spitzer-selected z > 1.3 protocluster candidates in the LSST Deep Drilling Fields

Graph Chatbot

Chat with Graph Search

Euclid: Validation of the MontePython forecasting tools

Euclid: Improving the efficiency of weak lensing shear bias calibration

Hydrodynamical simulations of merging galaxy clusters: giant dark matter particle colliders, powered by gravity

GHOST commissioning science results - II: a very metal-poor star witnessing the early galactic assembly

The Pristine dwarf galaxy survey-V. The edges of the dwarf galaxy Hercules

DESI mock challenge Halo and galaxy catalogues with the bias assignment method

Limit on the intergalactic magnetic field from the ultrahigh-energy cosmic ray hotspot in the Perseus-Pisces region

Constraints on the Hubble constant from supernova Refsdal's reappearance

Spitzer-selected z > 1.3 protocluster candidates in the LSST Deep Drilling Fields