150 citations · 1.2k across the 41 of their papers we have counts for
41 papers
Predicting ionised gas emission in 3D with SKIRT. I. Framework and validation
Anand Utsav Kapoor, Maarten Baes, Aaron Smith +7
Emission lines from ionised gas are key diagnostics of star formation, metallicity, and ionisation conditions in galaxies. Interpreting spatially resolved observations from integra…
TODDLERS 2.0: Stellar feedback and observables across diverse IMFs, binary populations, and cloud environments
Anand Utsav Kapoor, Andrea Gebek, Maarten Baes +4
Modeling the feedback-driven evolution of star-forming regions and their multi-wavelength emission is essential for interpreting galaxy observations across cosmic time. TODDLERS co…
Unlocking the physics of dwarf galaxies in the 2040s: The case for a next-generation wide-field spectroscopic facility with fibres and IFUs
Crescenzo Tortora, Daniela Carollo, Leslie Hunt +25
Dwarf galaxies () are the most numerous galaxies in the Universe and critical probes of dark matter, baryonic feedback, and galaxy formation. D…
The role of density breaks in driving spiral structure in disc galaxies
Karl Fiteni, Sven De Rijcke, Victor P. Debattista +1
It is well established that stellar discs are destabilized by sharp features in their phase space, driving recurrent spiral modes. We explore the extent to which surface-density br…
The impact of primordial black holes on the stellar mass function of ultra-faint dwarf galaxies
Nicolas Esser, Sven De Rijcke, Peter Tinyakov
If primordial black holes constitute the dark matter, stars forming in dark-matter dominated environments with low velocity dispersions, such as ultra-faint dwarf galaxies, may cap…
A new astrophysical solution to the Too Big To Fail problem - Insights from the MoRIA simulations
Robbert Verbeke, Emmanouil Papastergis, Anastasia A. Ponomareva +2
We test whether advanced galaxy models and analysis techniques of simulations can alleviate the Too Big To Fail problem (TBTF) for late-type galaxies, which states that isolated dw…
Spiral eigenmodes triggered by grooves in the phase space of disc galaxies
Sven De Rijcke, Ilya Voulis
We use linear perturbation theory to investigate how a groove in the phase space of a disc galaxy changes the stellar disc's stability properties. Such a groove is a narrow trough…
How the first stars shaped the faintest gas-dominated dwarf galaxies
Robbert Verbeke, Bert Vandenbroucke, Sven De Rijcke
Low-mass dwarf galaxies are very sensitive test-beds for theories of cosmic structure formation since their weak gravitational fields allow the effects of the relevant physical pro…
G2C2 - IV: A novel approach to study the radial distributions of multiple populations in Galactic globular clusters
Joachim Vanderbeke, Roberto De Propris, Sven De Rijcke +4
We use the HB morphology of 48 Galactic GCs to study the radial distributions of the different stellar populations known to exist in globular clusters. Assuming that the (extremely…
The dynamics of general relativistic isotropic stellar cluster models -- Do relativistic extensions of the Plummer model exist?
Sven De Rijcke, Robbert Verbeke, Thomas Boelens
We show that the general relativistic theory of the dynamics of isotropic stellar clusters can be developed essentially along the same lines as the Newtonian theory. We prove that…
Numerical simulations of dwarf galaxy merger trees
Annelies Cloet-Osselaer, Sven De Rijcke, Bert Vandenbroucke +3
We investigate the evolution of dwarf galaxies using N -body/SPH simulations that incorporate their formation histories through merger trees constructed using the ex- tended Press-…
Gaseous infall triggering starbursts in simulated dwarf galaxies
Robbert Verbeke, Sven De Rijcke, Mina Koleva +3
Using computer simulations, we explored gaseous infall as a possible explanation for the starburst phase in Blue Compact Dwarf galaxies. We simulate a cloud impact by merging a sph…
On the origin of bursts in blue compact dwarf galaxies: clues from kinematics and stellar populations
M. Koleva, S. De Rijcke, W. W. Zeilinger +3
Blue compact dwarf galaxies (BCDs) form stars at, for their sizes, extraordinarily high rates. In this paper, we study what triggers this starburst and what is the fate of the gala…
Stellar orbits and the survival of metallicity gradients in simulated dwarf galaxies
Joeri Schroyen, Sven De Rijcke, Mina Koleva +2
We present a detailed analysis of the formation, evolution, and possible longevity of metallicity gradients in simulated dwarf galaxies. Specifically, we investigate the role of po…
New composition dependent cooling and heating curves for galaxy evolution simulations
Sven De Rijcke, Joeri Schroyen, Bert Vandenbroucke +4
In this paper, we present a new calculation of composition-dependent radiative cooling and heating curves of low-density gas, intended primarily for use in numerical simulations of…
FCC046: a candidate gaseous polar ring dwarf elliptical galaxy in the Fornax Cluster
Sven De Rijcke, Pieter Buyle, Mina Koleva
FCC046 is a Fornax Cluster dwarf elliptical galaxy. Optical observations have shown that this galaxy, besides an old and metal-poor stellar population, also contains a very young c…
Physics of a partially ionized gas relevant to galaxy formation simulations -- the ionization potential energy reservoir
Bert Vandenbroucke, Sven De Rijcke, Joeri Schroyen +1
Simulation codes for galaxy formation and evolution take on board as many physical processes as possible beyond the standard gravitational and hydrodynamical physics. Most of this…
Lensing degeneracies and mass substructure
J. Liesenborgs, S. De Rijcke
The inversion of gravitational lens systems is hindered by the fact that multiple mass distributions are often equally compatible with the observed properties of the images. Beside…
The degeneracy between star-formation parameters in dwarf galaxy simulations and the Mstar-Mhalo relation
Annelies Cloet-Osselaer, Sven De Rijcke, Joeri Schroyen +1
We present results based on a set of N-Body/SPH simulations of isolated dwarf galaxies. The simulations take into account star formation, stellar feedback, radiative cooling and me…
Simulations of the formation and evolution of isolated dwarf galaxies - II. Angular momentum as a second parameter
Joeri Schroyen, Sven De Rijcke, Sander Valcke +2
We show results based on a large suite of N-Body/SPH simulations of isolated, flat dwarf galaxies, both rotating and non-rotating. The main goal is to investigate possible mechanis…
Age and metallicity gradients in early-type galaxies: A dwarf to giant sequence
Mina Koleva, Philippe Prugniel, Sven De Rijcke +1
We studied the stellar populations of 40 early-type galaxies using medium resolution long-slit spectroscopy along their major axes (and along the minor axis for two of them), from…
Spectroscopic ages and metallicities of galaxies
M. Koleva, A. Bedregal, Ph. Prugniel +2
Dwarf galaxies are generally faint. To derive their age and metallicity distributions, it is critical to optimize the use of any collected photon. Koleva et al., using full spectru…
Kinematics and stellar population of NGC 4486A
Philippe Prugniel, Werner Zeilinger, Mina Koleva +1
NGC 4486A is a low-luminosity elliptical galaxy harbouring an edge-on nuclear disk of stars and dust. It is known to host a super-massive black hole. We study its large-scale kinem…
Kelvin-Helmholtz instabilities in Smoothed Particle Hydrodynamics
Sander Valcke, Sven De Rijcke, Elke Roediger +1
In this paper we investigate whether Smoothed Particle Hydrodynamics (SPH), equipped with artificial conductivity, is able to capture the physics of density/energy discontinuities…