Outputs (359)

How robust are predictions of galaxy clustering? (2013)
Journal Article
Contreras, S., Baugh, C., Norberg, P., & Padilla, N. (2013). How robust are predictions of galaxy clustering?. Monthly Notices of the Royal Astronomical Society, 432(4), 2717-2730. https://doi.org/10.1093/mnras/stt629

We use the Millennium Simulation data base to compare how different versions of the Durham and Munich semi-analytical galaxy formation models populate dark matter haloes with galaxies. The models follow the same physical processes but differ in how t... Read More about How robust are predictions of galaxy clustering?.

Modelling Ly$\alpha$ emitters in a hierarchical Universe: a hybrid approach (2013)
Presentation / Conference Contribution
Orsi, A., Lacey, C., & Baugh, C. (2013, December). Modelling Ly$\alpha$ emitters in a hierarchical Universe: a hybrid approach. Presented at Second Workshop on Numerical and Observational Astrophysics: From the First Structures to the Universe Today, Buenos Aires

We present the results of combining the GALFORM semi-analytical model of galaxy formation with a Monte Carlo Lyα radiative transfer code to study the properties of Lyα emitters between 0 < z < 7. In this hybrid approach, Lyα photons escape from galax... Read More about Modelling Ly$\alpha$ emitters in a hierarchical Universe: a hybrid approach.

Single-colour diagnostics of the mass-to-light ratio - I. Predictions from galaxy formation models (2013)
Journal Article
Wilkins, S., Gonzalez-Perez, V., Baugh, C., Lacey, C., & Zuntz, J. (2013). Single-colour diagnostics of the mass-to-light ratio - I. Predictions from galaxy formation models. Monthly Notices of the Royal Astronomical Society, 431(1), 430-439. https://doi.org/10.1093/mnras/stt192

Accurate galaxy stellar masses are crucial to better understand the physical mechanisms driving the galaxy formation process. We use synthetic star formation and metal enrichment histories predicted by the GALFORM galaxy formation model to investigat... Read More about Single-colour diagnostics of the mass-to-light ratio - I. Predictions from galaxy formation models.

Parameter space in Galileon gravity models (2013)
Journal Article
Barreira, A., Li, B., Sanchez, A., Baugh, C., & Pascoli, S. (2013). Parameter space in Galileon gravity models. Physical Review D, 87(10), Article 103511. https://doi.org/10.1103/physrevd.87.103511

We present the first constraints on the full parameter space of the Galileon modified gravity model, considering both the cosmological parameters and the coefficients which specify the additional terms in the Lagrangian due to the Galileon field, whi... Read More about Parameter space in Galileon gravity models.

On the role of feedback in shaping the cosmic abundance and clustering of neutral atomic hydrogen in galaxies (2013)
Journal Article
Kim, H., Power, C., Baugh, C., Wyithe, J., Lacey, C., Lagos, C., & Frenk, C. (2013). On the role of feedback in shaping the cosmic abundance and clustering of neutral atomic hydrogen in galaxies. Monthly Notices of the Royal Astronomical Society, 428(4), 3366-3374. https://doi.org/10.1093/mnras/sts279

We investigate the impact of feedback – from supernovae (SNe), active galactic nuclei (AGN) and a photoionizing background at high redshifts – on the neutral atomic hydrogen (H I) mass function, the bJ-band luminosity function, and the spatial cluste... Read More about On the role of feedback in shaping the cosmic abundance and clustering of neutral atomic hydrogen in galaxies.

Lightcone mock catalogues from semi-analytic models of galaxy formation - I. Construction and application to the BzK colour selection (2013)
Journal Article
Merson, A., Baugh, C., Helly, J., Gonzalez-Perez, V., Cole, S., Bielby, R., …Lagos, C. D. P. (2013). Lightcone mock catalogues from semi-analytic models of galaxy formation - I. Construction and application to the BzK colour selection. Monthly Notices of the Royal Astronomical Society, 429(1), 556-578. https://doi.org/10.1093/mnras/sts355

We introduce a method for constructing end-to-end mock galaxy catalogues using a semi-analytical model of galaxy formation, applied to the halo merger trees extracted from a cosmological N-body simulation. The mocks that we construct are lightcone ca... Read More about Lightcone mock catalogues from semi-analytic models of galaxy formation - I. Construction and application to the BzK colour selection.

The ultraviolet colours and dust attenuation of Lyman-break galaxies (2013)
Journal Article
Gonzalez-Perez, V., Lacey, C., Baugh, C., Frenk, C., & Wilkins, S. (2013). The ultraviolet colours and dust attenuation of Lyman-break galaxies. Monthly Notices of the Royal Astronomical Society, 429(2), 1609-1625. https://doi.org/10.1093/mnras/sts446

Using GALFORM, a semi-analytical model of galaxy formation in the Λ cold dark matter cosmology, we study the rest-frame ultraviolet (UV) colours of Lyman-break galaxies (LBGs) in the redshift range 2.5 ≤ z ≤ 10. As the impact of dust on UV luminosity... Read More about The ultraviolet colours and dust attenuation of Lyman-break galaxies.

Luminosity bias: from haloes to galaxies (2013)
Journal Article
Baugh, C. (2013). Luminosity bias: from haloes to galaxies. Publications of the Astronomical Society of Australia, 30, Article e030. https://doi.org/10.1017/pas.2013.007

Large surveys of the local Universe have shown that galaxies with different intrinsic properties such as colour, luminosity and morphological type display a range of clustering amplitudes. Galaxies are therefore not faithful tracers of the underlying... Read More about Luminosity bias: from haloes to galaxies.

The non-linear matter and velocity power spectra in f(R) gravity (2013)
Journal Article
Li, B., Hellwing, W., Koyama, K., Zhao, G., Jennings, E., & Baugh, C. (2013). The non-linear matter and velocity power spectra in f(R) gravity. Monthly Notices of the Royal Astronomical Society, 428(1), 743-755. https://doi.org/10.1093/mnras/sts072

We study the matter and velocity divergence power spectra in a f(R) gravity theory and their time evolution measured from several large-volume N-body simulations with varying box sizes and resolution. We find that accurate prediction of the matter po... Read More about The non-linear matter and velocity power spectra in f(R) gravity.

Linear perturbations in Galileon gravity models (2012)
Journal Article
Barreira, A., Li, B., Baugh, C., & Pascoli, S. (2012). Linear perturbations in Galileon gravity models. Physical Review D, 86(12), Article 124016. https://doi.org/10.1103/physrevd.86.124016

We study the cosmology of Galileon modified gravity models in the linear perturbation regime. We derive the fully covariant and gauge invariant perturbed field equations using two different methods, which give consistent results, and solve them using... Read More about Linear perturbations in Galileon gravity models.