Professor Carlos Frenk's Outputs (558)

The mass of the Milky Way from satellite dynamics (2019)
Journal Article
Callingham, T. M., Cautun, M., Deason, A. J., Frenk, C. S., Wang, W., Gómez, F. A., Grand, R. J., Marinacci, F., & Pakmor, R. (2019). The mass of the Milky Way from satellite dynamics. Monthly Notices of the Royal Astronomical Society, 484(4), 5453-5467. https://doi.org/10.1093/mnras/stz365

We present and apply a method to infer the mass of the Milky Way (MW) by comparing the dynamics of MW satellites to those of model satellites in the EAGLE cosmological hydrodynamics simulations. A distribution function (DF) for galactic satellites is... Read More about The mass of the Milky Way from satellite dynamics.

The origin of galactic metal-rich stellar halo components with highly eccentric orbits (2019)
Journal Article
Fattahi, A., Belokurov, V., Deason, A. J., Frenk, C. S., Gómez, F. A., Grand, R. J., Marinacci, F., Pakmor, R., & Springel, V. (2019). The origin of galactic metal-rich stellar halo components with highly eccentric orbits. Monthly Notices of the Royal Astronomical Society, 484(4), 4471-4483. https://doi.org/10.1093/mnras/stz159

Using the astrometry from the ESA’s Gaia mission, previous works have shown that the Milky Way stellar halo is dominated by metal-rich stars on highly eccentric orbits. To shed light on the nature of this prominent halo component, we have analysed 28... Read More about The origin of galactic metal-rich stellar halo components with highly eccentric orbits.

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.

The star formation rate and stellar content contributions of morphological components in the EAGLE simulations (2018)
Journal Article
Trayford, J., Frenk, C., Theuns, T., Schaye, J., & Correa, C. (2019). The star formation rate and stellar content contributions of morphological components in the EAGLE simulations. Monthly Notices of the Royal Astronomical Society, 483(1), 744-766. https://doi.org/10.1093/mnras/sty2860

The Hubble sequence provides a useful classification of galaxy morphology at low redshift. However, morphologies are not static, but rather evolve as the growth of structure proceeds through mergers, accretion and secular processes. We investigate ho... Read More about The star formation rate and stellar content contributions of morphological components in the EAGLE simulations.

The chemical imprint of the bursty nature of Milky Way's progenitors (2018)
Journal Article
Sharma, M., Theuns, T., & Frenk, C. (2019). The chemical imprint of the bursty nature of Milky Way's progenitors. Monthly Notices of the Royal Astronomical Society, 482(1), L145-L149. https://doi.org/10.1093/mnrasl/sly195

Carbon-enhanced metal-poor (CEMP) stars with low abundances of neutron capture elements (CEMP-no stars) are ubiquitous among metal-poor stars in the Milky Way. Recent observations have uncovered their two subgroups that differ in the carbon to magnes... Read More about The chemical imprint of the bursty nature of Milky Way's progenitors.

Non-circular motions and the diversity of dwarf galaxy rotation curves (2018)
Journal Article
Oman, K. A., Marasco, A., Navarro, J. F., Frenk, C. S., Schaye, J., & Benítez-Llambay, A. (2018). Non-circular motions and the diversity of dwarf galaxy rotation curves. Monthly Notices of the Royal Astronomical Society, 482(1), 821-847. https://doi.org/10.1093/mnras/sty2687

We use mock interferometric H I measurements and a conventional tilted-ring modelling procedure to estimate circular velocity curves of dwarf galaxy discs from the APOSTLE suite of Λ cold dark matter cosmological hydrodynamical simulations. The model... Read More about Non-circular motions and the diversity of dwarf galaxy rotation curves.

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.

Globular clusters versus dark matter haloes in strong lensing observations (2018)
Journal Article
He, Q., Li, R., Lim, S., Frenk, C., Cole, S., Peng, E., & Wang, Q. (2018). Globular clusters versus dark matter haloes in strong lensing observations. Monthly Notices of the Royal Astronomical Society, 480(4), 5084-5091. https://doi.org/10.1093/mnras/sty2260

Small distortions in the images of Einstein rings or giant arcs offer the exciting prospect of detecting low mass dark matter haloes or subhaloes of mass below 109 M⊙ (for independent haloes, the mass refers to M200, and for subhaloes, the mass refer... Read More about Globular clusters versus dark matter haloes in strong lensing observations.

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.

The Imprint of Cosmic Reionization on the Luminosity Function of Galaxies (2018)
Journal Article
Bose, S., Deason, A. J., & Frenk, C. S. (2018). The Imprint of Cosmic Reionization on the Luminosity Function of Galaxies. Astrophysical Journal, 863(2), Article 123. https://doi.org/10.3847/1538-4357/aacbc4

The (re)ionization of hydrogen in the early universe has a profound effect on the formation of the first galaxies: by raising the gas temperature and pressure, it prevents gas from cooling into small halos, thus affecting the abundance of present-day... Read More about The Imprint of Cosmic Reionization on the Luminosity Function of Galaxies.

Dynamical Constraints on the Dark Matter Distribution of the Sculptor Dwarf Spheroidal from Stellar Proper Motions (2018)
Journal Article
Strigari, L. E., Frenk, C. S., & White, S. D. (2018). Dynamical Constraints on the Dark Matter Distribution of the Sculptor Dwarf Spheroidal from Stellar Proper Motions. Astrophysical Journal, 860(1), Article 56. https://doi.org/10.3847/1538-4357/aac2d3

We compare the transverse velocity dispersions recently measured within the Sculptor dwarf spheroidal galaxy to the predictions of our previously published dynamical model. This was designed to fit the observed number count and velocity dispersion pr... Read More about Dynamical Constraints on the Dark Matter Distribution of the Sculptor Dwarf Spheroidal from Stellar Proper Motions.

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.

CEMPlifying reionization (2018)
Journal Article
Sharma, M., Theuns, T., & Frenk, C. (2018). CEMPlifying reionization. Monthly Notices of the Royal Astronomical Society, 47(2), 1638-1650. https://doi.org/10.1093/mnras/sty1319

The massive stars that ionized the Universe have short lifetimes and can only be studied near the time of formation, but any low-mass stars that formed contemporaneously might be observable in the local Universe today. We study the abundance pattern... Read More about CEMPlifying reionization.

On the relevance of chaos for halo stars in the solar neighbourhood II (2018)
Journal Article
Maffione, N., Gómez, F., Cincotta, P., Giordano, C., Grand, R., Marinacci, F., Pakmor, R., Simpson, C., Springel, V., & Frenk, C. (2018). On the relevance of chaos for halo stars in the solar neighbourhood II. Monthly Notices of the Royal Astronomical Society, 478(3), 4052-4067. https://doi.org/10.1093/mnras/sty1297

In a previous paper based on dark matter only simulations we show that, in the approximation of an analytic and static potential describing the strongly triaxial and cuspy shape of Milky Way-sized haloes, diffusion due to chaotic mixing in the neighb... Read More about On the relevance of chaos for halo stars in the solar neighbourhood II.

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.

Resolution of the apparent discrepancy between the number of massive subhaloes in Abell 2744 and ΛCDM (2018)
Journal Article
Mao, T.-X., Wang, J., Frenk, C., Gao, L., Li, R., Wang, Q., Cao, X., & Li, M. (2018). Resolution of the apparent discrepancy between the number of massive subhaloes in Abell 2744 and ΛCDM. Monthly Notices of the Royal Astronomical Society: Letters, 478(1), L34-L38. https://doi.org/10.1093/mnrasl/sly069

Schwinn et al. (2017) have recently compared the abundance and distribution of massive substructures identified in a gravitational lensing analysis of Abell 2744 by Jauzac et al. (2016) and N-body simulation and found no cluster in ΛCDM simulation th... Read More about Resolution of the apparent discrepancy between the number of massive subhaloes in Abell 2744 and ΛCDM.

The duration of reionization constrains the ionizing sources (2018)
Journal Article
Sharma, M., Theuns, T., & Frenk, C. (2018). The duration of reionization constrains the ionizing sources. Monthly Notices of the Royal Astronomical Society: Letters, 477(1), L111-L116. https://doi.org/10.1093/mnrasl/sly052

We investigate how the nature of the galaxies that reionized the Universe affects the duration of reionization. We contrast two sets of models: one in which galaxies on the faint side of the luminosity function dominate the ionizing emissivity, and a... Read More about The duration of reionization constrains the ionizing sources.

Quenching and ram pressure stripping of simulated Milky Way satellite galaxies (2018)
Journal Article
Simpson, C., Grand, R., Gómez, F., Marinacci, F., Pakmor, R., Springel, V., …Frenk, C. (2018). Quenching and ram pressure stripping of simulated Milky Way satellite galaxies. Monthly Notices of the Royal Astronomical Society, 478(1), 548-567. https://doi.org/10.1093/mnras/sty774

We present predictions for the quenching of star formation in satellite galaxies of the Local Group from a suite of 30 cosmological zoom simulations of Milky Way-like host galaxies. The Auriga simulations resolve satellites down to the luminosity of... Read More about Quenching and ram pressure stripping of simulated Milky Way satellite galaxies.

What to expect from dynamical modelling of galactic haloes II: the spherical Jeans equation (2018)
Journal Article
Wang, W., Han, J., Cole, S., More, S., Frenk, C., & Schaller, M. (2018). What to expect from dynamical modelling of galactic haloes II: the spherical Jeans equation. Monthly Notices of the Royal Astronomical Society, 476(4), 5669-5680. https://doi.org/10.1093/mnras/sty706

The spherical Jeans equation (SJE) is widely used in dynamical modelling of the Milky Way (MW) halo potential. We use haloes and galaxies from the cosmological Millennium-II simulation and hydrodynamical APOSTLE simulations to investigate the perform... Read More about What to expect from dynamical modelling of galactic haloes II: the spherical Jeans equation.

The innate origin of radial and vertical gradients in a simulated galaxy disc (2018)
Journal Article
Navarro, J., Yozin, C., Loewen, N., Benítez-Llambay, A., Fattahi, A., Frenk, C., …Theuns, T. (2018). The innate origin of radial and vertical gradients in a simulated galaxy disc. Monthly Notices of the Royal Astronomical Society, 476(3), 3648-3660. https://doi.org/10.1093/mnras/sty497

We examine the origin of radial and vertical gradients in the age/metallicity of the stellar component of a galaxy disc formed in the APOSTLE cosmological hydrodynamical simulations. Some of these gradients resemble those in the Milky Way, where they... Read More about The innate origin of radial and vertical gradients in a simulated galaxy disc.