292 citations · 5.5k across the 107 of their papers we have counts for
110 papers
Stability of rotation axis of galactic disks in HESTIA suite
Naira R. Arakelyan, Sergey V. Pilipenko, Stefan Gottlöber +3
We have found that in approximately 1/4 of Milky Way or M31 analogues in the HESTIA suite of simulations there is a significant, , change in the axis of rotation orienta…
HINORA II: Testing the Existence of the Council of Giants in ΛCDM simulations
Edward Olex, Alexander Knebe, Noam I. Libeskind +2
The discovery of the galaxy ring known as the Council of Giants (CoG) highlights the need to explain such structures in the Local Universe. In the first paper of this series we pre…
Ginnungagap -- a massively parallel cosmological initial conditions generator
Sergey Pilipenko, Gustavo Yepes, Stefan Gottlöber +1
Ginnungagap is a fully parallel (MPI+OpenMP) code designed to generate cosmological initial conditions for simulations involving very large numbers of particles. It operates in sev…
Dispersion Measures of Fast Radio Bursts through the Epoch of Reionization
Joshua J. Ziegler, Paul R. Shapiro, Taha Dawoodbhoy +13
Dispersion measures (DM) of fast radio bursts (FRBs) probe the density of electrons in the intergalactic medium (IGM) along their lines-of-sight, including the average density vers…
HINORA, a method for detecting ring-like structures in 3D point distributions I: application to the Local Volume Galaxy catalogue
Edward Olex, Alexander Knebe, Noam I. Libeskind +2
We present a new method - called HINORA (HIgh-NOise RANdom SAmple Consensus) - for the identification of regular structures in 3D point distributions. Motivated by the possible exi…
Simulating the LOcal Web (SLOW) II: Properties of local galaxy clusters
Elena Hernández-Martínez, Klaus Dolag, Benjamin Seidel +6
This is the second paper in a series presenting the results from a 500 Mpc large constrained hydro-dynamical simulation of the local Universe (SLOW). The initial conditions…
The large scale velocity field from the Cosmicflows-4 data
Yehuda Hoffman, Aurélien Valade, Noam I. Libeskind +5
The reconstruction of the large scale velocity field from the grouped Cosmicflows-4 (CF4) database is presented. The lognormal bias of the inferred distances and velocities data is…
On the general nature of 21cm-Lyman- emitters cross-correlations during reionisation
Anne Hutter, Caroline Heneka, Pratika Dayal +4
We explore how the characteristics of the cross-correlation functions between the 21cm emission from the spin-flip transition of neutral hydrogen (HI) and early Lyman- (Ly) r…
A Local Universe model for constrained simulations
Simon Pfeifer, Aurélien Valade, Stefan Gottlöber +3
The aim of cosmological simulations is to reproduce the properties of the observed Universe, serving as tools to test structure and galaxy formation models. Constrained simulations…
Simulating the LOcal Web (SLOW): I. Anomalies in the local density field
Klaus Dolag, Jenny G. Sorce, Sergey Pilipenko +5
Context: Several observations of the local Universe (LU) point towards the existence of very prominent structures. The presence of massive galaxy clusters and local super clusters…
Astraeus VIII: A new framework for Lyman- emitters applied to different reionisation scenarios
Anne Hutter, Maxime Trebitsch, Pratika Dayal +3
We use the {\sc astraeus} framework to investigate how the visibility and spatial distribution of Lyman- (Ly) emitters (LAEs) during reionisation is sensitive to a halo mass-…
Hermeian haloes: extreme objects with two interactions in the past
Anastasiia Osipova, Sergey Pilipenko, Stefan Gottlöber +4
Recent studies based on numerical models of the Local Group predict the existence of field haloes and galaxies that have visited both the Milky Way and M31 in the past, called Herm…
Anisotropic satellite accretion onto the Local Group with HESTIA
Alexandra Dupuy, Noam I. Libeskind, Yehuda Hoffman +9
How the cosmic web feeds halos, and fuels galaxy formation is an open question with wide implications. This study explores the mass assembly in the Local Group within the context o…
Reionization time of the Local Group and Local-Group-like halo pairs
Jenny G. Sorce, Pierre Ocvirk, Dominique Aubert +7
Patchy cosmic reionization resulted in the ionizing UV background asynchronous rise across the Universe. The latter might have left imprints visible in present day observations. Se…
Astraeus VII: The environmental-dependent assembly of galaxies in the Epoch of Reionization
Laurent Legrand, Pratika Dayal, Anne Hutter +3
Using the ASTRAEUS (semi-numerical rAdiative tranSfer coupling of galaxy formaTion and Reionization in N-body dark matter simUlationS) framework, we explore the impact of environme…
Associations of dwarf galaxies in a CDM Universe
C. Y. Yaryura, M. G. Abadi, S. Gottlober +6
Associations of dwarf galaxies are loose systems composed exclusively of dwarf galaxies. These systems were identified in the Local Volume for the first time more than thirty years…
Astraeus III: The environment and physical properties of reionization sources
Anne Hutter, Pratika Dayal, Laurent Legrand +2
In this work, we use the {\sc astraeus} (seminumerical rAdiative tranSfer coupling of galaxy formaTion and Reionization in N-body dArk mattEr simUlationS) framework which couples g…
Astraeus II: Quantifying the impact of cosmic variance during the Epoch of Reionization
Graziano Ucci, Pratika Dayal, Anne Hutter +6
Next generation telescopes such as the James Webb Space Telescope (JWST) and the Nancy Grace Roman Space Telescope (NGRST) will enable us to study the first billion years of our Un…
Astraeus I: The interplay between galaxy formation and reionization
Anne Hutter, Pratika Dayal, Gustavo Yepes +3
We introduce a new self-consistent model of galaxy evolution and reionization, ASTRAEUS (semi-numerical rAdiative tranSfer coupling of galaxy formaTion and Reionization in N-body d…
On the Mass Assembly History of the Local Group
Edoardo Carlesi, Yehuda Hoffman, Stefan Gottlöber +4
In this work an ensemble of simulated Local Group analogues is used to constrain the properties of the mass assembly history of the Milky Way (MW) and Andromeda (M31) galaxies. The…
Clustering with JWST: Constraining Galaxy Host Halo Masses, Satellite Quenching Efficiencies, and Merger Rates at z=4-10
Ryan Endsley, Peter Behroozi, Daniel P. Stark +5
Galaxy clustering measurements can be used to constrain many aspects of galaxy evolution, including galaxy host halo masses, satellite quenching efficiencies, and merger rates. We…
Testing gravity with galaxy-galaxy lensing and redshift-space distortions using CFHT-Stripe 82, CFHTLenS and BOSS CMASS datasets
E. Jullo, S. de la Torre, M. -C. Cousinou +10
The combination of Galaxy-Galaxy Lensing (GGL) and Redshift Space Distortion of galaxy clustering (RSD) is a privileged technique to test General Relativity predictions, and break…
The Three Hundred Project: The influence of environment on simulated galaxy properties
Yang Wang, Frazer R. Pearce, Alexander Knebe +8
The relationship between galaxy properties and environment is a widely discussed topic within astrophysics. Here we use galaxy samples from hydrodynamical re-simulations to examine…
The quasi-linear nearby Universe
Yehuda Hoffman, Edoardo Carlesi, Daniel Pomarède +5
The local Universe provides a unique opportunity for testing cosmology and theories of structure formation. To facilitate this opportunity we present a new method for the reconstru…