Skip to main content

Research Repository

Advanced Search

Outputs (542)

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.

Tidal dwarf galaxies in cosmological simulations (2017)
Journal Article
Ploeckinger, S., Sharma, K., Schaye, J., Crain, R. A., Schaller, M., & Barber, C. (2018). Tidal dwarf galaxies in cosmological simulations. Monthly Notices of the Royal Astronomical Society, 474(1), 580-596. https://doi.org/10.1093/mnras/stx2787

The formation and evolution of gravitationally bound, star forming substructures in tidal tails of interacting galaxies, called tidal dwarf galaxies (TDG), has been studied, until now, only in idealized simulations of individual pairs of interacting... Read More about Tidal dwarf galaxies in cosmological simulations.

Magnetic damping phenomena in ferromagnetic thin-films and multilayers (2017)
Journal Article
Azzawi, S., Hindmarch, A., & Atkinson, D. (2017). Magnetic damping phenomena in ferromagnetic thin-films and multilayers. Journal of Physics D: Applied Physics, 50(47), Article 473001. https://doi.org/10.1088/1361-6463/aa8dad

Damped ferromagnetic precession is an important mechanism underpinning the magnetisation processes in ferromagnetic materials. In thin-film ferromagnets and ferromagnetic/non-magnetic multilayers, the role of precession and damping can be critical fo... Read More about Magnetic damping phenomena in ferromagnetic thin-films and multilayers.

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.

Evidence for higher black hole spin in radio-loud quasars (2017)
Journal Article
Schulze, A., Done, C., Lu, Y., Zhang, F., & Inoue, Y. (2017). Evidence for higher black hole spin in radio-loud quasars. Astrophysical Journal, 849(1), Article 4. https://doi.org/10.3847/1538-4357/aa9181

One of the major unsolved questions concerning the understanding of the active galactic nucleus population is the origin of the dichotomy between radio-quiet and radio-loud quasars. The most promising explanation is provided by the spin paradigm, whi... Read More about Evidence for higher black hole spin in radio-loud quasars.

The five-loop Beta function for a general gauge group and anomalous dimensions beyond Feynman gauge (2017)
Journal Article
Luthe, T., Maier, A., Marquard, P., & Schröder, Y. (2017). The five-loop Beta function for a general gauge group and anomalous dimensions beyond Feynman gauge. Journal of High Energy Physics, 2017(10), Article 166. https://doi.org/10.1007/jhep10%282017%29166

We focus on a non-abelian gauge field coupled to a single (but general) representation of a family of Nf fermions. By using the same machinery that had allowed us to evaluate the sub-leading large-Nf term of the five-loop Beta function earlier, we he... Read More about The five-loop Beta function for a general gauge group and anomalous dimensions beyond Feynman gauge.

The Taipan Galaxy Survey: Scientific Goals and Observing Strategy (2017)
Journal Article
da Cunha, E., Hopkins, A. M., Colless, M., Taylor, E. N., Blake, C., Howlett, C., …Watson, F. (2017). The Taipan Galaxy Survey: Scientific Goals and Observing Strategy. Publications of the Astronomical Society of Australia, 34, Article e047. https://doi.org/10.1017/pasa.2017.41

The Taipan galaxy survey (hereafter simply ‘Taipan’) is a multi-object spectroscopic survey starting in 2017 that will cover 2π steradians over the southern sky (δ ≲ 10°, |b| ≳ 10°), and obtain optical spectra for about two million galaxies out to z... Read More about The Taipan Galaxy Survey: Scientific Goals and Observing Strategy.

Black hole thermodynamics with dynamical lambda (2017)
Journal Article
Gregory, R., Kastor, D., & Traschen, J. (2017). Black hole thermodynamics with dynamical lambda. Journal of High Energy Physics, 2017(10), Article 118. https://doi.org/10.1007/jhep10%282017%29118

We study evolution and thermodynamics of a slow-roll transition between early and late time de Sitter phases, both in the homogeneous case and in the presence of a black hole, in a scalar field model with a generic potential having both a maximum and... Read More about Black hole thermodynamics with dynamical lambda.

Phase transitions and baryogenesis from decays (2017)
Journal Article
Shuve, B., & Tamarit, C. (2017). Phase transitions and baryogenesis from decays. Journal of High Energy Physics, 2017(10), Article 122. https://doi.org/10.1007/jhep10%282017%29122

We study scenarios in which the baryon asymmetry is generated from the decay of a particle whose mass originates from the spontaneous breakdown of a symmetry. This is realized in many models, including low-scale leptogenesis and theories with classic... Read More about Phase transitions and baryogenesis from decays.