Outputs (30)

A new gas cooling model for semi-analytic galaxy formation models (2017)
Journal Article
Hou, J., Lacey, C. G., & Frenk, C. S. (2018). A new gas cooling model for semi-analytic galaxy formation models. Monthly Notices of the Royal Astronomical Society, 475(1), 543-569. https://doi.org/10.1093/mnras/stx3218

Semi-analytic galaxy formation models are widely used to gain insight into the astrophysics of galaxy formation and in model testing, parameter space searching and mock catalogue building. In this work, we present a new model for gas cooling in haloe... Read More about A new gas cooling model for semi-analytic galaxy formation models.

Predictions for deep galaxy surveys with JWST from ΛCDM (2017)
Journal Article
Cowley, W., Baugh, C., Cole, S., Frenk, C., & Lacey, C. (2018). Predictions for deep galaxy surveys with JWST from ΛCDM. Monthly Notices of the Royal Astronomical Society, 474(2), 2352-2372. https://doi.org/10.1093/mnras/stx2897

We present predictions for the outcome of deep galaxy surveys with the James Webb Space Telescope (JWST) obtained from a physical model of galaxy formation in Λ cold dark matter. We use the latest version of the GALFORM model, embedded within a new (... Read More about Predictions for deep galaxy surveys with JWST from ΛCDM.

HBT+: an improved code for finding subhaloes and building merger trees in cosmological simulations (2017)
Journal Article
Han, J., Cole, S., Frenk, C., Benitez-Llambay, A., & Helly, J. (2018). HBT+: an improved code for finding subhaloes and building merger trees in cosmological simulations. Monthly Notices of the Royal Astronomical Society, 474(1), 604-617. https://doi.org/10.1093/mnras/stx2792

Dark matter subhalos are the remnants of (incomplete) halo mergers. Identifying them and establishing their evolutionary links in the form of merger trees is one of the most important applications of cosmological simulations. The HBT (Hierachical Bou... Read More about HBT+: an improved code for finding subhaloes and building merger trees in cosmological simulations.

Comparing galaxy formation in semi-analytic models and hydrodynamical simulations (2017)
Journal Article
Mitchell, P. D., Lacey, C. G., Lagos, C. D., Frenk, C. S., Bower, R. G., Cole, S., …Theuns, T. (2018). Comparing galaxy formation in semi-analytic models and hydrodynamical simulations. Monthly Notices of the Royal Astronomical Society, 474(1), 492-521. https://doi.org/10.1093/mnras/stx2770

It is now possible for hydrodynamical simulations to reproduce a representative galaxy population. Accordingly, it is timely to assess critically some of the assumptions of traditional semi-analytic galaxy formation models. We use the EAGLE simulatio... Read More about Comparing galaxy formation in semi-analytic models and hydrodynamical simulations.

The vertical structure of gaseous galaxy discs in cold dark matter haloes (2017)
Journal Article
Benítez-Llambay, A., Navarro, J. F., Frenk, C. S., & Ludlow, A. D. (2018). The vertical structure of gaseous galaxy discs in cold dark matter haloes. Monthly Notices of the Royal Astronomical Society, 473(1), 1019-1037. https://doi.org/10.1093/mnras/stx2420

We study the vertical structure of polytropic centrifugally supported gaseous discs embedded in cold dark matter (CDM) haloes. At fixed radius, R, the shape of the vertical density profile depends weakly on whether the disc is self-gravitating (SG) o... Read More about The vertical structure of gaseous galaxy discs in cold dark matter haloes.

Origins of carbon-enhanced metal-poor stars (2017)
Journal Article
Sharma, M., Theuns, T., Frenk, C. S., & Cooke, R. J. (2018). Origins of carbon-enhanced metal-poor stars. Monthly Notices of the Royal Astronomical Society, 473(1), 984-995. https://doi.org/10.1093/mnras/stx2392

We investigate the nature of carbon-enhanced metal-poor (CEMP) stars in Milky Way (MW) analogues selected from the EAGLE cosmological hydrodynamical simulation. The stellar evolution model in EAGLE includes the physics of enrichment by asymptotic gia... Read More about Origins of carbon-enhanced metal-poor stars.

Lessons from the Auriga discs: the hunt for the Milky Way's ex situ disc is not yet over (2017)
Journal Article
Gómez, F. A., Grand, R. J., Monachesi, A., White, S. D., Bustamante, S., Marinacci, F., …Frenk, C. S. (2017). Lessons from the Auriga discs: the hunt for the Milky Way's ex situ disc is not yet over. Monthly Notices of the Royal Astronomical Society, 472(3), 3722-3733. https://doi.org/10.1093/mnras/stx2149

We characterize the contribution from accreted material to the galactic discs of the Auriga Project, a set of high-resolution magnetohydrodynamic cosmological simulations of late-type galaxies performed with the moving-mesh code AREPO. Our goal is to... Read More about Lessons from the Auriga discs: the hunt for the Milky Way's ex situ disc is not yet over.

The origin of the mass discrepancy-acceleration relation in ΛCDM (2017)
Journal Article
Navarro, J., Benítez-Llambay, A., Fattahi, A., Frenk, C., Ludlow, A., Oman, K., …Theuns, T. (2017). The origin of the mass discrepancy-acceleration relation in ΛCDM. Monthly Notices of the Royal Astronomical Society, 471(2), 1841-1848. https://doi.org/10.1093/mnras/stx1705

We examine the origin of the mass discrepancy–radial acceleration relation (MDAR) of disc galaxies. This is a tight empirical correlation between the disc centripetal acceleration and that expected from the baryonic component. The MDAR holds for most... Read More about The origin of the mass discrepancy-acceleration relation in ΛCDM.

The segregation of baryons and dark matter during halo assembly (2017)
Journal Article
Liao, S., Gao, L., Frenk, C. S., Guo, Q., & Wang, J. (2017). The segregation of baryons and dark matter during halo assembly. Monthly Notices of the Royal Astronomical Society, 470(2), 2262-2269. https://doi.org/10.1093/mnras/stx1391

The standard galaxy formation theory assumes that baryons and dark matter are initially well mixed before becoming segregated due to radiative cooling. We use non-radiative hydrodynamical simulations to explicitly examine this assumption and find tha... Read More about The segregation of baryons and dark matter during halo assembly.

What to expect from dynamical modelling of galactic haloes (2017)
Journal Article
Wang, W., Han, J., Cole, S., Frenk, C., & Sawala, T. (2017). What to expect from dynamical modelling of galactic haloes. Monthly Notices of the Royal Astronomical Society, 470(2), 2351-2366. https://doi.org/10.1093/mnras/stx1334

Many dynamical models of the Milky Way halo require assumptions that the distribution function of a tracer population should be independent of time (i.e. a steady-state distribution function) and that the underlying potential is spherical. We study t... Read More about What to expect from dynamical modelling of galactic haloes.