Outputs (261)

Halo concentrations from extended Press-Schechter merger histories (2019)
Journal Article
Benson, A. J., Ludlow, A., & Cole, S. (2019). Halo concentrations from extended Press-Schechter merger histories. Monthly Notices of the Royal Astronomical Society, 485(4), 5010-5020. https://doi.org/10.1093/mnras/stz695

We apply the model relating halo concentration to formation history proposed by Ludlow et al. to merger trees generated using an algorithm based on excursion set theory. We find that while the model correctly predicts the median relation between halo... Read More about Halo concentrations from extended Press-Schechter merger histories.

Correcting for fibre assignment incompleteness in the DESI Bright Galaxy Survey (2019)
Journal Article
Smith, A., He, J.-H., Cole, S., Stothert, L., Norberg, P., Baugh, C., Bianchi, D., Wilson, M. J., Brooks, D., Forero-Romero, J. E., Moustakas, J., Percival, W. J., Tarle, G., & Wechsler, R. H. (2019). Correcting for fibre assignment incompleteness in the DESI Bright Galaxy Survey. Monthly Notices of the Royal Astronomical Society, 484(1), 1285-1300. https://doi.org/10.1093/mnras/stz059

The Dark Energy Spectroscopic Instrument (DESI) Bright Galaxy Survey (BGS) will be a survey of bright, low-redshift galaxies, which is planned to cover an area of ∼14000 square degrees in three passes. Each pass will cover the survey area with ∼2000... Read More about Correcting for fibre assignment incompleteness in the DESI Bright Galaxy Survey.

Aurigaia: mock Gaia DR2 stellar catalogues from the Auriga cosmological simulations (2018)
Journal Article
Grand, R., Helly, J., Fattahi, A., Cautun, M., Cole, S., Cooper, A., Deason, A., Frenk, C., Gómez, F., Hunt, J., Marinacci, F., Pakmor, R., Simpson, C., Springel, V., & Xu, D. (2018). Aurigaia: mock Gaia DR2 stellar catalogues from the Auriga cosmological simulations. Monthly Notices of the Royal Astronomical Society, 481(2), 1726-1743. https://doi.org/10.1093/mnras/sty2403

We present and analyse mock stellar catalogues that match the selection criteria and observables (including uncertainties) of the Gaia satellite data release 2 (DR2). The source are six cosmological high-resolution magneto-hydrodynamic ΛCDM zoom simu... Read More about Aurigaia: mock Gaia DR2 stellar catalogues from the Auriga cosmological simulations.

Globular clusters versus dark matter haloes in strong lensing observations (2018)
Journal Article
He, Q., Li, R., Lim, S., Frenk, C., Cole, S., Peng, E., & Wang, Q. (2018). Globular clusters versus dark matter haloes in strong lensing observations. Monthly Notices of the Royal Astronomical Society, 480(4), 5084-5091. https://doi.org/10.1093/mnras/sty2260

Small distortions in the images of Einstein rings or giant arcs offer the exciting prospect of detecting low mass dark matter haloes or subhaloes of mass below 109 M⊙ (for independent haloes, the mass refers to M200, and for subhaloes, the mass refer... Read More about Globular clusters versus dark matter haloes in strong lensing observations.

What to expect from dynamical modelling of galactic haloes II: the spherical Jeans equation (2018)
Journal Article
Wang, W., Han, J., Cole, S., More, S., Frenk, C., & Schaller, M. (2018). What to expect from dynamical modelling of galactic haloes II: the spherical Jeans equation. Monthly Notices of the Royal Astronomical Society, 476(4), 5669-5680. https://doi.org/10.1093/mnras/sty706

The spherical Jeans equation (SJE) is widely used in dynamical modelling of the Milky Way (MW) halo potential. We use haloes and galaxies from the cosmological Millennium-II simulation and hydrodynamical APOSTLE simulations to investigate the perform... Read More about What to expect from dynamical modelling of galactic haloes II: the spherical Jeans equation.

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.

The core–cusp problem: a matter of perspective (2017)
Journal Article
Genina, A., Benítez-Llambay, A., Frenk, C. S., Cole, S., Fattahi, A., Navarro, J. F., …Theuns, T. (2017). The core–cusp problem: a matter of perspective. Monthly Notices of the Royal Astronomical Society, 474(1), 1398-1411. https://doi.org/10.1093/mnras/stx2855

The existence of two kinematically and chemically distinct stellar subpopulations in the Sculptor and Fornax dwarf galaxies offers the opportunity to constrain the density profile of their matter haloes by measuring the mass contained within the well... Read More about The core–cusp problem: a matter of perspective.

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 Pan-STARRS1 Medium-deep Survey: Star Formation Quenching in Group and Cluster Environments (2017)
Journal Article
Jian, H., Lin, L., Lin, K., Foucaud, S., Chen, C., Chiueh, T., …Waters, C. (2017). The Pan-STARRS1 Medium-deep Survey: Star Formation Quenching in Group and Cluster Environments. Astrophysical Journal, 845(1), Article 74. https://doi.org/10.3847/1538-4357/aa7de2

We make use of a catalog of 1600 Pan-STARRS1 groups produced by the probability friends-of-friends algorithm to explore how the galaxy properties, i.e., the specific star formation rate (SSFR) and quiescent fraction, depend on stellar mass and group-... Read More about The Pan-STARRS1 Medium-deep Survey: Star Formation Quenching in Group and Cluster Environments.