299 citations · 2.2k across the 101 of their papers we have counts for
37 papers · 1 filter
MUSE-DARK IV. Comparing Dark Matter Densities to Star Formation Histories in 375 intermediate-z galaxies
B. I. Ciocan, N. F. Bouché, J. Fensch +5
(Abridged) Baryonic feedback is expected to transform cuspy dark-matter (DM) haloes into cores, but direct observational links between inner DM slopes and galaxy star-formation his…
MIGHTEE-HI / LADUMA: Investigating the link between baryons and dynamics with 130 resolved HI-selected galaxies
Andreea A Vărăşteanu, Matt J. Jarvis, Harry Desmond +15
The baryonic Tully-Fisher relation (bTFR) and the radial acceleration relation (RAR) link the observed dynamics in galaxies to that expected from their baryonic mass distributions.…
The Pulsar Radial Acceleration Relation
Tariq Yasin, Harry Desmond
The radial acceleration relation (RAR) links observed and baryonic accelerations, and is best established in rotation curves of late-type galaxies. Pulsar timing, which measures li…
The functional form of galaxy and halo luminosity and mass functions
Amelia Ford, Harry Desmond, Deaglan J Bartlett +1
The galaxy luminosity and stellar mass function (LF, SMF), and halo mass function (HMF), are fundamental quantities in astrophysics and crucial inputs to a range of astrophysical a…
MUSE-DARK III: The evolution of the radial acceleration relation at intermediate redshifts
B. I. Ciocan, N. F. Bouché, J. Fensch +5
The radial acceleration relation (RAR) is a tight empirical correlation between the observed radial acceleration (a_tot) and the baryonic radial acceleration (a_bar) measured acros…
MIGHTEE-HI: Mass Models and Dark Matter properties
Anastasia A. Ponomareva, P. E. Mancera Piña, A. A. Vărăşteanu +17
Measuring galaxy rotation curves is critical for inferring the properties of dark-matter haloes in the Lambda Cold Dark Matter (CDM) paradigm. We present HI rotation curves and…
Forward-modelling Milky Way Cepheids: selection effects and physical priors in the Gaia-HST calibration
Richard Stiskalek, Adam Riess, Harry Desmond +2
The advent of high-precision Gaia parallaxes for Milky Way Cepheids enables per cent-level calibration of the local distance ladder and the Hubble constant . We revisit the Mi…
Testing subhalo abundance matching with galaxy kinematics
Fedir Boreiko, Tariq Yasin, Harry Desmond +2
The rotation velocities of disc galaxies trace dark matter halo structure, providing direct constraints on the galaxy--halo connection. We construct a Bayesian forward model to con…
The causal structure of galactic astrophysics
Harry Desmond, Joseph Ramsey
Data-driven astrophysics currently relies on the detection and characterisation of correlations between objects' properties, which are then used to test physical theories that make…
Renzo's rule revisited: A statistical study of galaxies' baryon - dark matter coupling
Enoch Ko, Tariq Yasin, Harry Desmond +2
We present a systematic statistical analysis of an informal astrophysical phenomenon known as Renzo's rule (or Sancisi's law), which states that "for any feature in a galaxy's lumi…
MIGHTEE-HI: The radial acceleration relation with resolved stellar mass measurements
Andreea A. Vărăşteanu, Matt J. Jarvis, Anastasia A. Ponomareva +8
The radial acceleration relation (RAR) is a fundamental relation linking baryonic and dark matter in galaxies by relating the observed acceleration derived from dynamics to the one…
The galaxy-environment connection revealed by constrained simulations
Catherine Gallagher, Tariq Yasin, Richard Stiskalek +2
The evolution of galaxies is known to be connected to their position within the large-scale structure and their local environmental density. We investigate the relative importance…
Symmetry in Hyper Suprime-Cam galaxy spin directions
Richard Stiskalek, Harry Desmond
We perform a Bayesian analysis of anisotropy in binary galaxy spin directions in the Hyper-Suprime Cam Data Release 3 catalogue, in response to a recent claim that it exhibits a di…
Dark matter halo properties from spatially integrated HI flux profiles
Tariq Yasin, Harry Desmond
Resolved rotation curves (RCs) are our best probe of the dark matter distribution around individual galaxies. However their acquisition is resource-intensive, rendering them imprac…
On the consistency of rotation curves and spatially integrated HI flux profiles
Tariq Yasin, Harry Desmond
Resolved rotation curves (RCs) are the gold-standard measurements for inferring dark matter distributions in CDM and testing alternative theories of dynamics in galaxies. Howeve…
No evidence for anisotropy in galaxy spin directions
Dhruva Patel, Harry Desmond
Modern cosmology rests on the cosmological principle, that on large enough scales the Universe is both homogeneous and isotropic. A corollary is that galaxies' spin vectors should…
On the fundamentality of the radial acceleration relation for late-type galaxy dynamics
Richard Stiskalek, Harry Desmond
Galaxies have been observed to exhibit a level of simplicity unexpected in the complex galaxy formation scenario posited by standard cosmology. This is particularly apparent in the…
The underlying radial acceleration relation
Harry Desmond
The radial acceleration relation (RAR) of late-type galaxies relates their dynamical acceleration, , to that sourced by baryons alone, , across their ro…
On the functional form of the radial acceleration relation
Harry Desmond, Deaglan J. Bartlett, Pedro G. Ferreira
We apply a new method for learning equations from data -- Exhaustive Symbolic Regression (ESR) -- to late-type galaxy dynamics as encapsulated in the radial acceleration relation (…
Testing Modified Gravity Theories with Numerical Solutions of the External Field Effect in Rotationally Supported Galaxies
Kyu-Hyun Chae, Federico Lelli, Harry Desmond +2
The strong equivalence principle is violated by gravity theories of Milgromian dynamics (MOND) through the action of the external field effect. We test two different Lagrangian the…
The information on halo properties contained in spectroscopic observations of late-type galaxies
Tariq Yasin, Harry Desmond, Julien Devriendt +1
Rotation curves are the key observational manifestation of the dark matter distribution around late-type galaxies. In a halo model context, the precision of constraints on halo par…
Inferring dark matter halo properties for HI-selected galaxies
Tariq Yasin, Harry Desmond, Julien Devriendt +1
We set constraints on the dark matter halo mass and concentration of ~22,000 individual galaxies visible both in HI (from the ALFALFA survey) and optical light (from the SDSS). Thi…
The scatter in the galaxy-halo connection: a machine learning analysis
Richard Stiskalek, Deaglan J. Bartlett, Harry Desmond +1
We apply machine learning, a powerful method for uncovering complex correlations in high-dimensional data, to the galaxy-halo connection of cosmological hydrodynamical simulations.…
Testing the Strong Equivalence Principle. II. Relating the External Field Effect in Galaxy Rotation Curves to the Large-Scale Structure of the Universe
Kyu-Hyun Chae, Harry Desmond, Federico Lelli +2
Theories of modified gravity generically violate the strong equivalence principle, so that the internal dynamics of a self-gravitating system in free fall depends on the strength o…