429 citations · 4.4k across the 63 of their papers we have counts for
63 papers
A younger Universe implied by satellite pair correlations from SDSS observations of massive galaxy groups
Qing Gu, Qi Guo, Marius Cautun +5
Many of the satellites of galactic-mass systems such as the Miky Way, Andromeda and Centaurus A show evidence of coherent motions to a larger extent than most of the systems predic…
The impact of the Large Magellanic Cloud on dark matter direct detection signals
Adam Smith-Orlik, Nima Ronaghi, Nassim Bozorgnia +9
We study the effect of the Large Magellanic Cloud (LMC) on the dark matter (DM) distribution in the Solar neighborhood, utilizing the Auriga magneto-hydrodynamical simulations of M…
Determining Satellite Infall Times Using Machine Learning
Stan Barmentloo, Marius Cautun
A key unknown of the Milky Way (MW) satellites is their orbital history, and, in particular, the time they were accreted onto the MW system since it marks the point where they expe…
The spatial distribution of satellites in galaxy clusters
Qing Gu, Qi Guo, Tianchi Zhang +4
The planar distributions of satellite galaxies around the Milky Way and Andromeda have been extensively studied as potential challenges to the standard cosmological model. Using th…
The Milky Way's plane of satellites: consistent with CDM
Till Sawala, Marius Cautun, Carlos S. Frenk +7
The "plane of satellites problem" describes the arrangement of the Milky Way's 11 brightest satellite galaxies in a remarkably thin plane, possibly supported by rotation. This is i…
The Chemo-Dynamical Groups of Galactic Globular Clusters
Thomas M. Callingham, Marius Cautun, Alis J. Deason +3
We introduce a multi-component chemo-dynamical method for splitting the Galactic population of Globular Clusters (GCs) into three distinct constituents: bulge, disc, and stellar ha…
Cosmological forecasts with the clustering of weak lensing peaks
Christopher T. Davies, Marius Cautun, Benjamin Giblin +3
Maximising the information that can be extracted from weak lensing measurements is a key goal for upcoming surveys such as LSST and Euclid. This is typically achieved through stati…
The spatial distribution of Milky Way satellites, gaps in streams and the nature of dark matter
Mark R. Lovell, Marius Cautun, Carlos S. Frenk +2
The spatial distribution of Milky Way (MW) subhaloes provides an important set of observables for testing cosmological models. These include the radial distribution of luminous sat…
Statistical strong lensing. I. Constraints on the inner structure of galaxies from samples of a thousand lenses
Alessandro Sonnenfeld, Marius Cautun
Context: The number of known strong gravitational lenses is expected to grow substantially in the next few years. The statistical combination of large samples of lenses has the pot…
The survival of globular clusters in a cuspy Fornax
Shi Shao, Marius Cautun, Carlos S. Frenk +5
It has long been argued that the radial distribution of globular clusters (GCs) in the Fornax dwarf galaxy requires its dark matter halo to have a core of size kpc. We rev…
Deviations from tidal torque theory: evolution of the halo spin-filament alignment
Pablo López, Marius Cautun, Dante Paz +2
The alignment between halo spins and the cosmic web is still poorly understood despite being a widely studied topic. Here, we study this alignment within the context of tidal torqu…
Constraints on the properties of warm dark matter using the satellite galaxies of the Milky Way
Oliver Newton, Matteo Leo, Marius Cautun +5
The satellite galaxies of the Milky Way (MW) are effective probes of the underlying dark matter (DM) substructure, which is sensitive to the nature of the DM particle. In particula…
Caught in the cosmic web: Environmental effect on halo concentrations, shape, and spin
Wojciech A. Hellwing, Marius Cautun, Rien van de Weygaert +1
Using a set of high-resolution simulations we study the statistical correlation of dark matter halo properties with the large-scale environment. We consider halo populations split…
Testing the theory of gravity with DESI: estimators, predictions and simulation requirements
Shadab Alam, Christian Arnold, Alejandro Aviles +33
Shortly after its discovery, General Relativity (GR) was applied to predict the behavior of our Universe on the largest scales, and later became the foundation of modern cosmology.…
Joint constraints on thermal relic dark matter from strong gravitational lensing, the Lyman- forest, and Milky Way satellites
Wolfgang Enzi, Riccardo Murgia, Oliver Newton +10
We derive joint constraints on the warm dark matter (WDM) half-mode scale by combining the analyses of a selection of astrophysical probes: strong gravitational lensing with extend…
Constraining cosmology with weak lensing voids
Christopher T. Davies, Marius Cautun, Benjamin Giblin +3
Upcoming surveys such as \LSST{} and \Euclid{} will significantly improve the power of weak lensing as a cosmological probe. To maximise the information that can be extracted from…
Cosmic Ballet III: halo spin evolution in the cosmic web
Punyakoti Ganeshaiah Veena, Marius Cautun, Rien van de Weygaert +2
We explore the evolution of halo spins in the cosmic web using a very large sample of dark matter haloes in the CDM Planck-Millennium N-body simulation. We use the NEXUS+ multis…
The twisted dark matter halo of the Milky Way
Shi Shao, Marius Cautun, Alis J. Deason +1
We analyse systems analogous to the Milky Way (MW) in the EAGLE cosmological hydrodynamics simulation in order to deduce the likely structure of the MW's dark matter halo. We ident…
Optimal void finders in weak lensing maps
Christopher T. Davies, Enrique Paillas, Marius Cautun +1
Cosmic voids are a key component of the large-scale structure that contain a plethora of cosmological information. Typically, voids are identified from the underlying galaxy distri…
The orbital phase space of contracted dark matter halos
Thomas M. Callingham, Marius Cautun, Alis J. Deason +4
We study the orbital phase-space of dark matter (DM) halos in the AURIGA suite of cosmological hydrodynamics simulations of Milky Way analogues. We characterise halos by their sphe…
Measuring the BAO peak position with different galaxy selections
César Hernández-Aguayo, Marius Cautun, Alex Smith +2
We investigate if, for a fixed number density of targets and redshift, there is an optimal way to select a galaxy sample in order to measure the baryon acoustic oscillation (BAO) s…
Iterative removal of redshift space distortions from galaxy clustering
Yuchan Wang, Baojiu Li, Marius Cautun
Observations of galaxy clustering are made in redshift space, which results in distortions to the underlying isotropic distribution of galaxies. These redshift-space distortions (R…
The mass of our Milky Way
Wenting Wang, Jiaxin Han, Marius Cautun +2
We perform an extensive review of the numerous studies and methods used to determine the total mass of the Milky Way. We group the various methods into seven broad classes, includi…
The Milky Way total mass profile as inferred from Gaia DR2
Marius Cautun, Alejandro Benitez-Llambay, Alis J. Deason +7
We determine the Milky Way (MW) mass profile inferred from fitting physically motivated models to the Gaia DR2 Galactic rotation curve and other data. Using various hydrodynamical…