Outputs (18)

A dynamical model of supernova feedback: gas outflows from the interstellar medium (2013)
Journal Article
Lagos, C. D. P., Lacey, C., & Baugh, C. (2013). A dynamical model of supernova feedback: gas outflows from the interstellar medium. Monthly Notices of the Royal Astronomical Society, 436(2), 1787-1817. https://doi.org/10.1093/mnras/stt1696

We present a dynamical model of supernova feedback which follows the evolution of pressurized bubbles driven by supernovae in a multiphase interstellar medium (ISM). The bubbles are followed until the point of break-out into the halo, starting from a... Read More about A dynamical model of supernova feedback: gas outflows from the interstellar medium.

Spherical collapse in Galileon gravity: fifth force solutions, halo mass function and halo bias (2013)
Journal Article
Barreira, A., Li, B., Baugh, C., & Pascoli, S. (2013). Spherical collapse in Galileon gravity: fifth force solutions, halo mass function and halo bias. Journal of Cosmology and Astroparticle Physics, 11(2013), Article 056. https://doi.org/10.1088/1475-7516/2013/11/056

We study spherical collapse in the Quartic and Quintic Covariant Galileon gravity models within the framework of the excursion set formalism. We derive the nonlinear spherically symmetric equations in the quasi-static and weak-field limits, focusing... Read More about Spherical collapse in Galileon gravity: fifth force solutions, halo mass function and halo bias.

The most luminous quasars do not live in the most massive dark matter haloes at any redshift (2013)
Journal Article
Fanidakis, N., Macciò, A., Baugh, C., Lacey, C., & Frenk, C. (2013). The most luminous quasars do not live in the most massive dark matter haloes at any redshift. Monthly Notices of the Royal Astronomical Society, 436(1), 315-326. https://doi.org/10.1093/mnras/stt1567

Quasars (QSOs) represent the brightest active galactic nuclei (AGN) in the Universe and are thought to indicate the location of prodigiously growing black holes (BHs), with luminosities as high as 1048 erg s−1. It is often expected though that such a... Read More about The most luminous quasars do not live in the most massive dark matter haloes at any redshift.

Simulating the quartic Galileon gravity model on adaptively refined meshes (2013)
Journal Article
Li, B., Barreira, A., Baugh, C., Hellwing, W., Koyama, K., Pascoli, S., & Zhao, G. (2013). Simulating the quartic Galileon gravity model on adaptively refined meshes. Journal of Cosmology and Astroparticle Physics, 2013(11), Article 12. https://doi.org/10.1088/1475-7516/2013/11/012

We develop a numerical algorithm to solve the high-order nonlinear derivative-coupling equation associated with the quartic Galileon model, and implement it in a modified version of the ramses N-body code to study the effect of the Galileon field on... Read More about Simulating the quartic Galileon gravity model on adaptively refined meshes.

Nonlinear structure formation in the cubic Galileon gravity model (2013)
Journal Article
Barreira, A., Li, B., Hellwing, W., Baugh, C., & Pascoli, S. (2013). Nonlinear structure formation in the cubic Galileon gravity model. Journal of Cosmology and Astroparticle Physics, 2013(10), Article 027. https://doi.org/10.1088/1475-7516/2013/10/027

We model the linear and nonlinear growth of large scale structure in the Cubic Galileon gravity model, by running a suite of N-body cosmological simulations using the ECOSMOG code. Our simulations include the Vainshtein screening effect, which reconc... Read More about Nonlinear structure formation in the cubic Galileon gravity model.

How well can we really estimate the stellar masses of galaxies from broad-band photometry? (2013)
Journal Article
Mitchell, P. D., Lacey, C. G., Baugh, C. M., & Cole, S. (2013). How well can we really estimate the stellar masses of galaxies from broad-band photometry?. Monthly Notices of the Royal Astronomical Society, 435(1), 87-114. https://doi.org/10.1093/mnras/stt1280

The estimated stellar masses of galaxies are widely used to characterize how the galaxy population evolves over cosmic time. If stellar masses can be estimated in a robust manner, free from any bias, global diagnostics such as the stellar mass functi... Read More about How well can we really estimate the stellar masses of galaxies from broad-band photometry?.

Constraints on black hole fuelling modes from the clustering of X-ray AGN (2013)
Journal Article
Fanidakis, N., Georgakakis, A., Mountrichas, G., Krumpe, M., Baugh, C., Lacey, C., …Benson, A. (2013). Constraints on black hole fuelling modes from the clustering of X-ray AGN. Monthly Notices of the Royal Astronomical Society, 435(1), 679-688. https://doi.org/10.1093/mnras/stt1327

We present a clustering analysis of X-ray selected active galactic nuclei (AGN) by compiling X-ray samples from the literature and re-estimating the dark-matter (DM) halo masses of AGN in a uniform manner. We find that moderate-luminosity AGN (L2–10 ... Read More about Constraints on black hole fuelling modes from the clustering of X-ray AGN.

The evolution of massive galaxies in semi-analytical models of galaxy formation (2013)
Presentation / Conference Contribution
Baugh, C. (2013, July). The evolution of massive galaxies in semi-analytical models of galaxy formation. Presented at IAU Symposium

Massive galaxies with old stellar populations have been put forwards as a challenge to models in which cosmic structures grow hierarchically through gravitational instability. I will explain how the growth of massive galaxies is helped by features of... Read More about The evolution of massive galaxies in semi-analytical models of galaxy formation.

Clustering of EROs from UKIDSS DXS and Pan-STARRS PS1 (2013)
Presentation / Conference Contribution
Kim, J.-W., Edge, A. C., Wake, D., Gonzalez-Perez, V., Baugh, C. M., & Lacey, C. G. (2013, July). Clustering of EROs from UKIDSS DXS and Pan-STARRS PS1. Presented at IAU Symposium

We have measured the angular two-point correlation function of EROs. The halo model is fitted to the observed clustering, and dark matter halo mass, bias and satellite fraction are estimated in three redshift bins. We also compare our results with th... Read More about Clustering of EROs from UKIDSS DXS and Pan-STARRS PS1.

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?.