Professor Cedric Lacey's Outputs (11)

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.

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.

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.

Variation in the escape fraction of ionizing photons from galaxies and the redshifted 21-cm power spectrum during reionization (2013)
Journal Article
Kim, H., Wyithe, J., Park, J., & Lacey, C. (2013). Variation in the escape fraction of ionizing photons from galaxies and the redshifted 21-cm power spectrum during reionization. Monthly Notices of the Royal Astronomical Society, 433(3), 2476-2484. https://doi.org/10.1093/mnras/stt918

The observed power spectrum of redshifted 21-cm fluctuations is known to be sensitive to the astrophysical properties of the galaxies that drove reionization. Thus, detailed measurements of the 21-cm power spectrum and its evolution could lead to mea... Read More about Variation in the escape fraction of ionizing photons from galaxies and the redshifted 21-cm power spectrum during reionization.

The SCUBA-2 cosmology legacy survey : blank-field number counts of 450-μm-selected galaxies and their contribution to the cosmic infrared background (2013)
Journal Article
Geach, J., Chapin, E., Coppin, K., Dunlop, J., Halpern, M., Smail, I., …Zemcov, M. (2013). The SCUBA-2 cosmology legacy survey : blank-field number counts of 450-μm-selected galaxies and their contribution to the cosmic infrared background. Monthly Notices of the Royal Astronomical Society, 432(1), 53-61. https://doi.org/10.1093/mnras/stt352

The first deep blank-field 450 μm map (1σ ≈ 1.3 mJy) from the Submillimetre Common-User Bolometer Array-2 SCUBA-2 Cosmology Legacy Survey (S2CLS), conducted with the James Clerk Maxwell Telescope (JCMT) is presented. Our map covers 140 arcmin2 of the... Read More about The SCUBA-2 cosmology legacy survey : blank-field number counts of 450-μm-selected galaxies and their contribution to the cosmic infrared background.

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.

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.

The structure of reionization in hierarchical galaxy formation models (2013)
Journal Article
Kim, H., Wyithe, J., Raskutti, S., Lacey, C., & Helly, J. (2013). The structure of reionization in hierarchical galaxy formation models. Monthly Notices of the Royal Astronomical Society, 428(3), 2467-2479. https://doi.org/10.1093/mnras/sts206

Understanding the epoch of reionization and the properties of the first galaxies represents an important goal for modern cosmology. The structure of reionization and hence the observed power spectrum of redshifted 21-cm fluctuations are known to be s... Read More about The structure of reionization in hierarchical galaxy formation models.