343 citations · 1.9k across the 36 of their papers we have counts for
36 papers
A subgrid model for chemical enrichment in cosmological simulations
Camila A. Correa, Joop Schaye, Matthieu Schaller +6
We present the modules for stellar nucleosynthesis, stellar mass loss, and turbulent diffusion of the new COLIBRE subgrid model for cosmological hydrodynamical simulations of galax…
Kennicutt-Schmidt relation of galaxies over 13 billion years in the COLIBRE hydrodynamical simulations
Claudia del P. Lagos, Joop Schaye, Matthieu Schaller +16
We investigate the correlation between star formation rate (SFR) surface density and gas surface density (known as the Kennicutt-Schmidt, KS, relation) at kiloparsec (kpc) scales a…
Dynamical disequilibrium in dwarf galaxies: rethinking gas dynamics, rotation curves, and dark matter inference
Diego Dado, Kyle A. Oman, Katherine E. Harborne +9
We quantify departures from hydrodynamical and centrifugal equilibrium in the gas discs of low-mass () galaxies from the COLIBR…
Gravitational potential drives the concentration dependence of the stellar mass-halo mass relation
Kai Wang, Joop Schaye, Alejandro Benítez-Llambay +8
We investigate the origin of the scatter in the stellar mass-halo mass (SMHM) relation using the \colibre cosmological hydrodynamical simulations. At fixed halo mass, we find a cle…
Non-explosive pre-supernova feedback in the COLIBRE model of galaxy formation
Alejandro Benítez-Llambay, Sylvia Ploeckinger, Joop Schaye +7
We present the implementation and testing of a subgrid non-explosive pre-supernova (NEPS) feedback module for the COLIBRE model of galaxy formation. The NEPS module incorporates th…
The First RELHIC? Cloud-9 is a Starless Gas Cloud
Gagandeep S. Anand, Alejandro Benítez-Llambay, Rachael Beaton +3
Five-hundred-meter Aperture Spherical Telescope (FAST) observations have recently identified a compact HI cloud (hereafter Cloud-9) in the vicinity of the spiral galaxy M94. This i…
Modelling the evolution and influence of dust in cosmological simulations that include the cold phase of the interstellar medium
James W. Trayford, Joop Schaye, Camila Correa +7
While marginal in mass terms, dust grains play an outsized role in both the physics and observation of the interstellar medium (ISM). However, explicit modelling of this ISM consti…
The MUSE Ultra Deep Field: A 5 Mpc stretch of the z 4 cosmic web revealed in emission
Davide Tornotti, Michele Fumagalli, Matteo Fossati +7
We detect Ly emission from a ~5 Mpc-long (comoving) portion of the cosmic web hosting an overdensity () of 19 Ly emitters (LAEs) at within the MUSE…
The accreted stellar haloes of Milky Way-mass galaxies as a probe of the nature of the dark matter
Victor J. Forouhar Moreno, Azadeh Fattahi, Alis J. Deason +2
Galactic stellar haloes are largely composed of the remnants of galaxies accreted during the assembly of their host galaxies, and hence their properties reflect the mass spectrum a…
High-definition imaging of a filamentary connection between a close quasar pair at z=3
Davide Tornotti, Michele Fumagalli, Matteo Fossati +16
Filaments connecting halos are a long-standing prediction of cold dark matter theories. We present a detection of the cosmic web emission connecting two quasar-host galaxies at red…
Is a recently discovered HI cloud near M94 a starless dark matter halo?
Alejandro Benitez-Llambay, Julio F. Navarro
Observations with the Five-Hundred-Meter Aperture Spherical Telescope have revealed the presence of a marginally-resolved source of 21 cm emission from a location from th…
The impact and response of minihalos and the inter-halo medium on cosmic reionization
Tsang Keung Chan, Alejandro Benitez-Llambay, Tom Theuns +2
An ionization front (I-front) that propagates through an inhomogeneous medium is slowed down by self-shielding and recombinations. We perform cosmological radiation hydrodynamics s…
A thermal-kinetic subgrid model for supernova feedback in simulations of galaxy formation
Evgenii Chaikin, Joop Schaye, Matthieu Schaller +3
We present a subgrid model for supernova feedback designed for cosmological simulations of galaxy formation that may include a cold interstellar medium (ISM). The model uses therma…
The present-day gas content of simulated field dwarf galaxies
Georg Herzog, Alejandro Benitez-Llambay, Michele Fumagalli
We examine the gas content of field dwarf galaxies in a high-resolution cosmological simulation. In agreement with previous work, we find that galaxies inhabiting dark matter haloe…
Galactic satellite systems in CDM, WDM and SIDM
Victor J. Forouhar Moreno, Alejandro Benitez-Llambay, Shaun Cole +1
We investigate the population of bright satellites () of haloes of mass comparable to that of the Milky Way in cosmological simulations in whi…
The cosmic UV background and the beginning and end of star formation in simulated field dwarf galaxies
Matthew Pereira-Wilson, Julio Navarro, Alejandro Benítez-Llambay +1
We use the APOSTLE cosmological simulations to examine the role of the cosmic UV background in regulating star formation (SF) in low-mass LCDM halos. In agreement with earlier work…
The diversity of rotation curves of simulated galaxies with cusps and cores
Finn A. Roper, Kyle A. Oman, Carlos S. Frenk +3
We use CDM cosmological hydrodynamical simulations to explore the kinematics of gaseous discs in late-type dwarf galaxies. We create high-resolution 21-cm 'observations' of simu…
The Tail of Late-forming Dwarf Galaxies in CDM
Alejandro Benitez-Llambay, Michele Fumagalli
We use a robust analytical model together with a high-resolution hydrodynamical cosmological simulation to demonstrate that in a cold dark matter (CDM) universe, a small fra…
The detailed structure and the onset of galaxy formation in low-mass gaseous dark matter haloes
Alejandro Benitez-Llambay, Carlos Frenk
We present a model for the formation of the first galaxies before and after the reionization of hydrogen in the early universe. In this model, galaxy formation can only take place…
Cusp or core? Revisiting the globular cluster timing problem in Fornax
Noah Meadows, Julio F. Navarro, Isabel Santos-Santos +2
We use N-body simulations to revisit the globular cluster (GC) ``timing problem'' in the Fornax dwarf spheroidal (dSph). In agreement with earlier work, we find that, due to dynami…
To beta or not to beta: can higher-order Jeans analysis break the mass-anisotropy degeneracy in simulated dwarfs?
Anna Genina, Justin I. Read, Carlos S. Frenk +6
We test a non-parametric higher-order Jeans analysis method, GravSphere, on 32 simulated dwarf galaxies comparable to classical Local Group dwarfs like Fornax. The galaxies are sel…
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…
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…
Fluorescent rings in star-free dark matter haloes
Calvin Sykes, Michele Fumagalli, Ryan Cooke +2
Photoheating of the gas in low-mass dark matter (DM) haloes prevents baryons from cooling, leaving the haloes free of stars. Gas in these 'dark' haloes remains exposed to the ultra…