292 citations · 5.5k across the 107 of their papers we have counts for
25 papers · 1 filter
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…
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…
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…
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…
Semi-Analytic Galaxies - I. Synthesis of environmental and star-forming regulation mechanisms
Sofía A. Cora, Cristian A. Vega-Martínez, Tomás Hough +8
We present results from the semi-analytic model of galaxy formation SAG applied on the MultiDark simulation MDPL2. SAG features an updated supernova (SN) feedback scheme and a robu…
Reionization of the Milky Way, M31, and their satellites I: reionization history and star formation
Keri L. Dixon, Ilian T. Iliev, Stefan Gottlöber +4
Observations of the Milky Way (MW), M31, and their vicinity, known as the Local Group (LG), can provide clues about the sources of reionization. We present a suite of radiative tra…
Constraining the mass of the Local Group
Edoardo Carlesi, Yehuda Hoffman, Jenny G. Sorce +1
The mass of the Local Group (LG) is a crucial parameter for galaxy formation theories. However, its observational determination is challenging - its mass budget is dominated by dar…
The tangential velocity of M31: CLUES from constrained simulations
Edoardo Carlesi, Yehuda Hoffman, Jenny G. Sorce +4
Determining the precise value of the tangential component of the velocity of M31 is a non trivial astrophysical issue, that relies on complicated modeling. This has recently lead t…
Mergers and the outside-in formation of dwarf spheroidals
Alejandro Benítez-Llambay, Julio F. Navarro, Mario G. Abadi +4
We use a cosmological simulation of the formation of the Local Group to explore the origin of age and metallicity gradients in dwarf spheroidal galaxies. We find that a number of s…
The distribution of mass components in simulated disc galaxies
Isabel M. Santos-Santos, Chris B. Brook, Greg Stinson +5
Using 22 hydrodynamical simulated galaxies in a LCDM cosmological context we recover not only the observed baryonic Tully-Fisher relation, but also the observed "mass discrepancy--…
The Effect of Environment on Milky Way-mass galaxies in a Constrained Simulation of the Local Group
Peter Creasey, Cecilia Scannapieco, Sebastian E. Nuza +3
In this letter we present, for the first time, a study of star formation rate, gas fraction and galaxy morphology of a constrained simulation of the Milky Way (MW) and Andromeda (M…
Vast planes of satellites in a high resolution simulation of the Local Group: comparison to Andromeda
N. Gillet, P. Ocvirk, D. Aubert +5
We search for vast planes of satellites (VPoS) in a high resolution simulation of the Local Group performed by the CLUES project, which improves significantly the resolution of for…
Supermassive Black Hole Binaries: Environment and Galaxy Host Properties of PTA and eLISA sources
Eva Martínez Palafox, Octavio Valenzuela, Pedro Colín +1
Supermassive black hole (BH) binaries would comprise the strongest sources of gravitational waves (GW) once they reach <<1 pc separations, for both pulsar timing arrays (PTAs) and…
The reionization of galactic satellite populations
P. Ocvirk, N. Gillet, D. Aubert +6
We use high resolution simulations of the formation of the local group post-processed by a radiative transfer code for UV photons, to investigate the reionization of the satellite…
The Imprint of Reionization on the Star Formation Histories of Dwarf Galaxies
Alejandro Benítez-Llambay, Julio F. Navarro, Mario G. Abadi +4
We explore the impact of cosmic reionization on nearby isolated dwarf galaxies using a compilation of SFHs estimated from deep HST data and a cosmological hydrodynamical simulation…