483 citations · 3.1k across the 49 of their papers we have counts for
49 papers
Constraints on the properties of MSM dark matter using the satellite galaxies of the Milky Way
Oliver Newton, Mark R. Lovell, Carlos S. Frenk +4
Low-mass galaxies provide a powerful tool with which to investigate departures from the standard cosmological paradigm in models that suppress the abundance of small dark matter st…
Dark matter decay in the Milky Way halo
Mark R. Lovell
Dark matter may be detected in X-ray decay, including from the decay of the dark matter particles that make up the Milky Way (MW) halo. We use a range of density profiles to comput…
A warm dark matter cosmogony may yield more low-mass galaxy detections in 21-cm surveys than a cold dark matter one
Kyle A. Oman, Carlos S. Frenk, Robert A. Crain +2
The 21-cm spectral line widths, , of galaxies are an approximate tracer of their dynamical masses, such that the dark matter halo mass function is imprinted in the number d…
The impact of free-streaming on dwarf galaxy counts in low-density regions
Tamar Meshveliani, Mark R. Lovell, Robert A. Crain +1
We study the statistics of dwarf galaxy populations as a function of environment in the cold dark matter (CDM) and warm dark matter (WDM) cosmogonies, using hydrodynamical simulati…
Halo assembly in cold and warm dark matter during the JWST frontier epoch
Mark R. Lovell
The JWST mission is in the process of probing the galaxy mass function at , when conceivably any delay in halo assembly due to the presence of a dwarf galaxy-scale power spec…
Anticipating the XRISM search for the decay of resonantly produced sterile neutrino dark matter
Mark R. Lovell
The sterile neutrino () features in multiple extensions of the standard model and is a compelling dark matter candidate, especially as the decay of with mass $m_\mathrm{…
Sensitivity of strong lensing observations to dark matter substructure: a case study with Euclid
Conor M. O'Riordan, Giulia Despali, Simona Vegetti +2
We introduce a machine learning method for estimating the sensitivity of strong lens observations to dark matter subhaloes in the lens. Our training data include elliptical power-l…
Gravothermal collapse of Self-Interacting Dark Matter halos as the Origin of Intermediate Mass Black Holes in Milky Way satellites
Tamar Meshveliani, Jesús Zavala, Mark R. Lovell
Milky Way (MW) satellites exhibit a diverse range of internal kinematics, reflecting in turn a diverse set of subhalo density profiles. These profiles include large cores and dense…
Matching the mass function of Milky Way satellites in competing dark matter models
Mark R. Lovell, Jesús Zavala
Any successful model of dark matter must explain the diversity of observed Milky Way (MW) satellite density profiles, from very dense ultrafaints to large, low density satellites s…
Differentiating small-scale subhalo distributions in CDM and WDM models using persistent homology
Jessi Cisewski-Kehe, Brittany Terese Fasy, Wojciech Hellwing +3
The spatial distribution of galaxies at sufficiently small scales will encode information about the identity of the dark matter. We develop a novel description of the halo distribu…
Could fresh lava be (warm) dark matter?
Mark R. Lovell
Dark matter models can be classified according to their impact on the properties of galaxies, including cold dark matter (CDM), warm dark matter (WDM), self-interacting dark matter…
Snowmass2021 Cosmic Frontier White Paper: Dark Matter Physics from Halo Measurements
Keith Bechtol, Simon Birrer, Francis-Yan Cyr-Racine +41
The non-linear process of cosmic structure formation produces gravitationally bound overdensities of dark matter known as halos. The abundances, density profiles, ellipticities, an…
The feasibility of constraining DM interactions with high-redshift observations by JWST
Ali Kurmus, Sownak Bose, Mark Lovell +4
Observations of the high redshift universe provide a promising avenue for constraining the nature of the dark matter (DM). This will be even more true with the advent of the James…
High and low Sérsic index bulges in Milky Way- and M31-like galaxies: origin and connection to the bar with TNG50
Ignacio D. Gargiulo, Antonela Monachesi, Facundo A. Gómez +8
We study bulge formation in MW/M31-like galaxies in a -cold dark matter scenario, focusing on the origin of high- and low-Sersic index bulges. For this purpose we use TNG50, a s…
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…
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…
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…
The Onset of Gravothermal Core Collapse in Velocity Dependent Self-Interacting Dark Matter Subhaloes
Hannah C. Turner, Mark R. Lovell, Jesús Zavala +1
It has been proposed that gravothermal collapse due to dark matter self-interactions (i.e. self-interacting dark matter, SIDM) can explain the observed diversity of the Milky Way (…
Cosmological Dark Matter: a Review (the April Fool Edition)
M. R. Lovell
Evidence has continued to accumulate over the last few decades as to the existence and nature of dark matter. Depending on the particle candidate, the dark matter can exhibit one o…
Towards a general parametrization of the warm dark matter halo mass function
Mark R. Lovell
Studies of flux anomalies statistics and perturbations in stellar streams have the potential to constrain models of warm dark matter (WDM), including sterile neutrinos. Producing t…
Local Group star formation in warm and self-interacting dark matter cosmologies
Mark R. Lovell, Wojciech Hellwing, Aaron Ludlow +5
The nature of the dark matter can affect the collapse time of dark matter haloes, and can therefore be imprinted in observables such as the stellar population ages and star formati…
Exploiting flux ratio anomalies to probe warm dark matter in future large scale surveys
David Harvey, Wessel Valkenburg, Amelie Tamone +3
Flux ratio anomalies in strong gravitationally lensed quasars constitute a unique way to probe the abundance of non-luminous dark matter haloes, and hence the nature of dark matter…
The halo mass function in alternative dark matter models
M. R. Lovell
The claimed detection of large amounts of substructure in lensing flux anomalies, and in Milky Way stellar stream gaps statistics, has lead to a step change in constraints on simpl…
Baryonic clues to the puzzling diversity of dwarf galaxy rotation curves
Isabel M. E. Santos-Santos, Julio F. Navarro, Andrew Robertson +7
We use a compilation of disc galaxy rotation curves to assess the role of the luminous component ("baryons") in the rotation curve diversity problem. As in earlier work, we find th…