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Rotation rates, sizes and star formation efficiencies of a representative population of simulated disc galaxies (2012)
Journal Article
McCarthy, I., Schaye, J., Font, A., Theuns, T., Frenk, C., Crain, R., & Dalla Vecchia, C. (2012). Rotation rates, sizes and star formation efficiencies of a representative population of simulated disc galaxies. Monthly Notices of the Royal Astronomical Society, 427(1), 379-392. https://doi.org/10.1111/j.1365-2966.2012.21951.x

We examine the rotation rates, sizes and star formation (SF) efficiencies of a representative population of simulated disc galaxies extracted from the Galaxies–Intergalactic Medium Interaction Calculation (GIMIC) suite of cosmological hydrodynamic si... Read More about Rotation rates, sizes and star formation efficiencies of a representative population of simulated disc galaxies.

The properties of the star-forming interstellar medium at z = 0.84-2.23 from HiZELS : mapping the internal dynamics and metallicity gradients in high-redshift disc galaxies (2012)
Journal Article
Swinbank, A., Sobral, D., Smail, I., Geach, J., Best, P., McCarthy, I., …Theuns, T. (2012). The properties of the star-forming interstellar medium at z = 0.84-2.23 from HiZELS : mapping the internal dynamics and metallicity gradients in high-redshift disc galaxies. Monthly Notices of the Royal Astronomical Society, 426(2), 935-950. https://doi.org/10.1111/j.1365-2966.2012.21774.x

We present adaptive optics assisted, spatially resolved spectroscopy of a sample of nine Hα-selected galaxies at z = 0.84-2.23 drawn from the HiZELS narrow-band survey. These galaxies have star formation rates of 1-27 M⊙ yr-1 and are therefore repres... Read More about The properties of the star-forming interstellar medium at z = 0.84-2.23 from HiZELS : mapping the internal dynamics and metallicity gradients in high-redshift disc galaxies.

Absorption signatures of warm-hot gas at low redshift : broad HI Lyα absorbers (2012)
Journal Article
Tepper-García, T., Richter, P., Schaye, J., Booth, C., Dalla Vecchia, C., & Theuns, T. (2012). Absorption signatures of warm-hot gas at low redshift : broad HI Lyα absorbers. Monthly Notices of the Royal Astronomical Society, 425(3), 1640-1663. https://doi.org/10.1111/j.1365-2966.2012.21545.x

We investigate the physical state of H I absorbing gas at low redshift (z = 0.25) using a subset of cosmological, hydrodynamic simulations from the OverWhelmingly Large Simulations project, focusing in particular on broad (Graphic) H I Lyα absorbers... Read More about Absorption signatures of warm-hot gas at low redshift : broad HI Lyα absorbers.

Large-scale structure in absorption: gas within and around galaxy voids (2012)
Journal Article
Tejos, N., Morris, S. L., Crighton, N. H., Theuns, T., Altay, G., & Finn, C. W. (2012). Large-scale structure in absorption: gas within and around galaxy voids. Monthly Notices of the Royal Astronomical Society, 425(1), 245-260. https://doi.org/10.1111/j.1365-2966.2012.21448.x

We investigate the properties of the H I Lyα absorption systems (Lyα forest) within and around galaxy voids at z ≲ 0.1. We find a significant excess (>99 per cent confidence level, c.l.) of Lyα systems at the edges of galaxy voids with respect to a r... Read More about Large-scale structure in absorption: gas within and around galaxy voids.

The competition between confinement and ram pressure and its implications for galaxies in groups and clusters (2012)
Journal Article
Bahé, Y. M., McCarthy, I. G., Crain, R. A., & Theuns, T. (2012). The competition between confinement and ram pressure and its implications for galaxies in groups and clusters. Monthly Notices of the Royal Astronomical Society, 424(2), 1179-1186. https://doi.org/10.1111/j.1365-2966.2012.21292.x

Ram pressure stripping of the hot gas that surrounds normal galaxies as they fall into groups and clusters (also referred to as ‘strangulation’ or ‘starvation’) is generally thought to shut down star formation on a time-scale of a few Gyr. However, i... Read More about The competition between confinement and ram pressure and its implications for galaxies in groups and clusters.

The origin of discs and spheroids in simulated galaxies (2012)
Journal Article
Sales, L. V., Navarro, J. F., Theuns, T., Schaye, J., White, S. D., Frenk, C. S., …Dalla Vecchia, C. (2012). The origin of discs and spheroids in simulated galaxies. Monthly Notices of the Royal Astronomical Society, 423(2), 1544-1555. https://doi.org/10.1111/j.1365-2966.2012.20975.x

The major morphological features of a galaxy are thought to be determined by the assembly history and net spin of its surrounding dark halo. In the simplest scenario, disc galaxies form predominantly in haloes with high angular momentum and quiet rec... Read More about The origin of discs and spheroids in simulated galaxies.

Cold accretion flows and the nature of high column density H I absorption at redshift 3 (2012)
Journal Article
van de Voort, F., Schaye, J., Altay, G., & Theuns, T. (2012). Cold accretion flows and the nature of high column density H I absorption at redshift 3. Monthly Notices of the Royal Astronomical Society, 421(4), 2809-2819. https://doi.org/10.1111/j.1365-2966.2012.20487.x

Simulations predict that galaxies grow primarily through the accretion of gas that has not gone through an accretion shock near the virial radius and that this cold gas flows towards the central galaxy along dense filaments and streams. There is, how... Read More about Cold accretion flows and the nature of high column density H I absorption at redshift 3.

Global structure and kinematics of stellar haloes in cosmological hydrodynamic simulations (2012)
Journal Article
McCarthy, I., Font, A., Crain, R., Deason, A., Schaye, J., & Theuns, T. (2012). Global structure and kinematics of stellar haloes in cosmological hydrodynamic simulations. Monthly Notices of the Royal Astronomical Society, 420(3), 2245-2262. https://doi.org/10.1111/j.1365-2966.2011.20189.x

We use the Galaxies–Intergalactic Medium Interaction Calculation (GIMIC) suite of cosmological hydrodynamical simulations to study the global structure and kinematics of stellar spheroids of Milky Way mass disc galaxies. Font et al. have recently dem... Read More about Global structure and kinematics of stellar haloes in cosmological hydrodynamic simulations.

The haloes of bright satellite galaxies in a warm dark matter universe (2012)
Journal Article
Lovell, M., Eke, V., Frenk, C., Gao, L., Jenkins, A., Theuns, T., …Ruchayskiy, O. (2012). The haloes of bright satellite galaxies in a warm dark matter universe. Monthly Notices of the Royal Astronomical Society, 420(3), 2318-2324. https://doi.org/10.1111/j.1365-2966.2011.20200.x

High-resolution N-body simulations of galactic cold dark matter haloes indicate that we should expect to find a few satellite galaxies around the Milky Way whose haloes have a maximum circular velocity in excess of 40 km s−1. Yet, with the exception... Read More about The haloes of bright satellite galaxies in a warm dark matter universe.