Outputs (10)

The aftermath of the Great Collision between our Galaxy and the Large Magellanic Cloud (2018)
Journal Article
Cautun, M., Deason, A. J., Frenk, C. S., & McAlpine, S. (2018). The aftermath of the Great Collision between our Galaxy and the Large Magellanic Cloud. Monthly Notices of the Royal Astronomical Society, 483(2), 2185-2196. https://doi.org/10.1093/mnras/sty3084

The Milky Way (MW) offers a uniquely detailed view of galactic structure and is often regarded as a prototypical spiral galaxy. But recent observations indicate that the MW is atypical: it has an undersized supermassive black hole at its centre; it i... Read More about The aftermath of the Great Collision between our Galaxy and the Large Magellanic Cloud.

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.

The Cosmic Ballet: spin and shape alignments of haloes in the cosmic web (2018)
Journal Article
Ganeshaiah Veena, P., Cautun, M., van de Weygaert, R., Tempel, E., Jones, B., Rieder, S., & Frenk, C. (2018). The Cosmic Ballet: spin and shape alignments of haloes in the cosmic web. Monthly Notices of the Royal Astronomical Society, 481(1), 414-438. https://doi.org/10.1093/mnras/sty2270

We investigate the alignment of haloes with the filaments of the cosmic web using an unprecedently large sample of dark matter haloes taken from the P-Millennium Lambda cold dark matter cosmological N-body simulation. We use the state-of-the-art NEXU... Read More about The Cosmic Ballet: spin and shape alignments of haloes in the cosmic web.

Weak lensing by voids in weak lensing maps (2018)
Journal Article
Davies, C. T., Cautun, M., & Li, B. (2018). Weak lensing by voids in weak lensing maps. Monthly Notices of the Royal Astronomical Society: Letters, 480(1), L101-L105. https://doi.org/10.1093/mnrasl/sly135

Cosmic voids are an important probe of large-scale structure that can constrain cosmological parameters and test cosmological models. We present a new paradigm for void studies: void detection in weak lensing convergence maps. This approach identifie... Read More about Weak lensing by voids in weak lensing maps.

Evolution of LMC/M33-mass dwarf galaxies in the EAGLE simulation (2018)
Journal Article
Shao, S., Cautun, M., Deason, A., Frenk, C., & Theuns, T. (2018). Evolution of LMC/M33-mass dwarf galaxies in the EAGLE simulation. Monthly Notices of the Royal Astronomical Society, 479(1), 284-296. https://doi.org/10.1093/mnras/sty1470

We investigate the population of dwarf galaxies with stellar masses similar to the Large Magellanic Cloud (LMC) and M33 in the EAGLE galaxy formation simulation. In the field, galaxies reside in haloes with stellar-to-halo mass ratios of 1.03+0.50−0.... Read More about Evolution of LMC/M33-mass dwarf galaxies in the EAGLE simulation.

The total satellite population of the Milky Way (2018)
Journal Article
Newton, O., Cautun, M., Jenkins, A., Frenk, C. S., & Helly, J. C. (2018). The total satellite population of the Milky Way. Monthly Notices of the Royal Astronomical Society, 479(3), 2853-2870. https://doi.org/10.1093/mnras/sty1085

The total number and luminosity function of the population of dwarf galaxies of the Milky Way (MW) provide important constraints on the nature of the dark matter and on the astrophysics of galaxy formation at low masses. However, only a partial censu... Read More about The total satellite population of the Milky Way.

Reconstructing the baryon acoustic oscillations using biased tracers (2018)
Journal Article
Birkin, J., Li, B., Cautun, M., & Shi, Y. (2018). Reconstructing the baryon acoustic oscillations using biased tracers. Monthly Notices of the Royal Astronomical Society, 483(4), 5267-5280. https://doi.org/10.1093/mnras/sty3365

The reconstruction of the initial conditions of the Universe is an important topic in cosmology, particularly in the context of sharpening the measurement of the baryon acoustic oscillation (BAO) peak. Nonlinear reconstruction algorithms developed in... Read More about Reconstructing the baryon acoustic oscillations using biased tracers.

The Santiago-Harvard-Edinburgh-Durham void comparison I: SHEDding light on chameleon gravity tests (2018)
Journal Article
Cautun, M., Paillas, E., Cai, Y., Bose, S., Armijo, J., Li, B., & Padilla, N. (2018). The Santiago-Harvard-Edinburgh-Durham void comparison I: SHEDding light on chameleon gravity tests. Monthly Notices of the Royal Astronomical Society, 476(3), 3195-3217. https://doi.org/10.1093/mnras/sty463

We present a systematic comparison of several existing and new void finding algorithms, focusing on their potential power to test a particular class of modified gravity models – chameleon f(R) gravity. These models deviate from standard General Relat... Read More about The Santiago-Harvard-Edinburgh-Durham void comparison I: SHEDding light on chameleon gravity tests.

The multiplicity and anisotropy of galactic satellite accretion (2018)
Journal Article
Shao, S., Cautun, M., Frenk, C. S., Grand, R. J., Gómez, F. A., Marinacci, F., & Simpson, C. M. (2018). The multiplicity and anisotropy of galactic satellite accretion. Monthly Notices of the Royal Astronomical Society, 476(2), 1796-1810. https://doi.org/10.1093/mnras/sty343

We study the incidence of group and filamentary dwarf galaxy accretion into Milky Way (MW) mass haloes using two types of hydrodynamical simulations: EAGLE, which resolves a large cosmological volume, and the AURIGA suite, which are very high resolut... Read More about The multiplicity and anisotropy of galactic satellite accretion.

New method for initial density reconstruction (2018)
Journal Article
Shi, Y., Cautun, M., & Li, B. (2018). New method for initial density reconstruction. Physical Review D, 97(2), Article 023505. https://doi.org/10.1103/physrevd.97.023505

A theoretically interesting and practically important question in cosmology is the reconstruction of the initial density distribution provided a late-time density field. This is a long-standing question with a revived interest recently, especially in... Read More about New method for initial density reconstruction.