From peculiar morphologies to Hubble-type spirals: the relation between galaxy dynamics and morphology in star-forming galaxies at z ∼ 1.5

Gillman, S.; Tiley, A.L.; Swinbank, A.M.; Harrison, C.M.; Smail, I.; Dudzevičiūtė, U; Sharples, R.M.; Cortese, L.; Obreschkow, D.; Bower, R.G.; Theuns, T.; Cirasuolo, M.; Fisher, D.B.; Glazebrook, K.; Ibar, E.; Mendel, J.T.; Sweet, S.M.

doi:10.1093/mnras/stz3576

The impact and response of mini-haloes and the interhalo medium on cosmic reionization (2024)
Journal Article
Chan, T. K., Benítez-Llambay, A., Theuns, T., Frenk, C., & Bower, R. (2024). The impact and response of mini-haloes and the interhalo medium on cosmic reionization. Monthly Notices of the Royal Astronomical Society, 528(2), 1296-1326. https://doi.org/10.1093/mnras/stae114

An ionization front (I-front) that propagates through an inhomogeneous medium is slowed down by self-shielding and recombination's. We perform cosmological radiation hydrodynamics simulations of the I-front propagation during the epoch of cosmic reio... Read More about The impact and response of mini-haloes and the interhalo medium on cosmic reionization.

KURVS: the outer rotation curve shapes and dark matter fractions of z ∼ 1.5 star-forming galaxies (2023)
Journal Article
Puglisi, A., Dudzevičiūtė, U., Swinbank, M., Gillman, S., Tiley, A. L., Bower, R. G., …Sharples, R. M. (2023). KURVS: the outer rotation curve shapes and dark matter fractions of z ∼ 1.5 star-forming galaxies. Monthly Notices of the Royal Astronomical Society, 524(2), 2814-2835. https://doi.org/10.1093/mnras/stad1966

We present first results from the KMOS Ultra-deep Rotation Velocity Survey (KURVS), aimed at studying the outer rotation curves shape and dark matter content of 22 star-forming galaxies at z ∼1.5. These galaxies represent ’typical’ star-forming discs... Read More about KURVS: the outer rotation curve shapes and dark matter fractions of z ∼ 1.5 star-forming galaxies.

EAGLE-like simulation models do not solve the entropy core problem in groups and clusters of galaxies (2023)
Journal Article
Altamura, E., Kay, S. T., Bower, R. G., Schaller, M., Bahé, Y. M., Schaye, J., …Towler, I. (2023). EAGLE-like simulation models do not solve the entropy core problem in groups and clusters of galaxies. Monthly Notices of the Royal Astronomical Society, 520(2), 3164-3186. https://doi.org/10.1093/mnras/stad342

Recent high-resolution cosmological hydrodynamic simulations run with a variety of codes systematically predict large amounts of entropy in the intra-cluster medium at low redshift, leading to flat entropy profiles and a suppressed cool-core populati... Read More about EAGLE-like simulation models do not solve the entropy core problem in groups and clusters of galaxies.

A sparse regression approach for populating dark matter haloes and subhaloes with galaxies (2022)
Journal Article
Icaza-Lizaola, M., Bower, R. G., Norberg, P., Cole, S., & Schaller, M. (2022). A sparse regression approach for populating dark matter haloes and subhaloes with galaxies. Monthly Notices of the Royal Astronomical Society, 518(2), 2903-2920. https://doi.org/10.1093/mnras/stac3265

We use sparse regression methods (SRMs) to build accurate and explainable models that predict the stellar mass of central and satellite galaxies as a function of properties of their host dark matter haloes. SRMs are machine learning algorithms that p... Read More about A sparse regression approach for populating dark matter haloes and subhaloes with galaxies.

The importance of black hole repositioning for galaxy formation simulations (2022)
Journal Article
Bahé, Y. M., Schaye, J., Schaller, M., Bower, R. G., Borrow, J., Chaikin, E., …Ploeckinger, S. (2022). The importance of black hole repositioning for galaxy formation simulations. Monthly Notices of the Royal Astronomical Society, 516(1), 167-184. https://doi.org/10.1093/mnras/stac1339

Active galactic nucleus (AGN) feedback from accreting supermassive black holes (SMBHs) is an essential ingredient of galaxy formation simulations. The orbital evolution of SMBHs is affected by dynamical friction that cannot be predicted self-consiste... Read More about The importance of black hole repositioning for galaxy formation simulations.

The resolved chemical abundance properties within the interstellar medium of star-forming galaxies at z≈ 1.5 (2022)
Journal Article
Gillman, S., Puglisi, A., Dudzevičiūtė, U., Swinbank, A., Tiley, A., Harrison, C., …Obreschkow, D. (2022). The resolved chemical abundance properties within the interstellar medium of star-forming galaxies at z≈ 1.5. Monthly Notices of the Royal Astronomical Society, 512(3), 3480-3499. https://doi.org/10.1093/mnras/stac580

We exploit the unprecedented depth of integral field data from the KMOS Ultra-deep Rotational Velocity Survey (KURVS) to analyse the strong (Hα) and forbidden ([NII], [SII]) emission line ratios in 22 main-sequence galaxies at z ≈ 1.5. Using the [NII... Read More about The resolved chemical abundance properties within the interstellar medium of star-forming galaxies at z≈ 1.5.

SPHENIX: Smoothed Particle Hydrodynamics for the next generation of galaxy formation simulations (2021)
Journal Article
Borrow, J., Schaller, M., Bower, R. G., & Schaye, J. (2022). SPHENIX: Smoothed Particle Hydrodynamics for the next generation of galaxy formation simulations. Monthly Notices of the Royal Astronomical Society, 511(2), 2637-2389. https://doi.org/10.1093/mnras/stab3166

Smoothed Particle Hydrodynamics (SPH) is a ubiquitous numerical method for solving the fluid equations, and is prized for its conservation properties, natural adaptivity, and simplicity. We introduce the SPHENIX SPH scheme, which was designed with th... Read More about SPHENIX: Smoothed Particle Hydrodynamics for the next generation of galaxy formation simulations.

A sparse regression approach to modelling the relation between galaxy stellar masses and their host haloes (2021)
Journal Article
Icaza-Lizaola, M., Bower, R. G., Norberg, P., Cole, S., Schaller, M., & Egan, S. (2021). A sparse regression approach to modelling the relation between galaxy stellar masses and their host haloes. Monthly Notices of the Royal Astronomical Society, 507(3), 4584-4602. https://doi.org/10.1093/mnras/stab2368

Sparse regression algorithms have been proposed as the appropriate framework to model the governing equations of a system from data, without needing prior knowledge of the underlying physics. In this work, we use sparse regression to build an accurat... Read More about A sparse regression approach to modelling the relation between galaxy stellar masses and their host haloes.

Redshift evolution of the hot intracluster gas metallicity in the C-EAGLE cluster simulations (2021)
Journal Article
Pearce, F. A., Kay, S. T., Barnes, D. J., Bahé, Y. M., & Bower, R. G. (2021). Redshift evolution of the hot intracluster gas metallicity in the C-EAGLE cluster simulations. Monthly Notices of the Royal Astronomical Society, 507(2), 1606-1622. https://doi.org/10.1093/mnras/stab2194

The abundance and distribution of metals in galaxy clusters contain valuable information about their chemical history and evolution. By looking at how metallicity evolves with redshift, it is possible to constrain the different metal production chann... Read More about Redshift evolution of the hot intracluster gas metallicity in the C-EAGLE cluster simulations.

JUNE: open-source individual-based epidemiology simulation (2021)
Journal Article
Aylett-Bullock, J., Cuesta-Lazaro, C., Quera-Bofarull, A., Icaza-Lizaola, M., Sedgewick, A., Truong, H., …Krauss, F. (2021). JUNE: open-source individual-based epidemiology simulation. Royal Society Open Science, 8(7), https://doi.org/10.1098/rsos.210506

We introduce June, an open-source framework for the detailed simulation of epidemics on the basis of social interactions in a virtual population constructed from geographically granular census data, reflecting age, sex, ethnicity and socio-economic i... Read More about JUNE: open-source individual-based epidemiology simulation.

Smoothed particle radiation hydrodynamics: two-moment method with local Eddington tensor closure (2021)
Journal Article
Chan, T., Theuns, T., Bower, R., & Frenk, C. (2021). Smoothed particle radiation hydrodynamics: two-moment method with local Eddington tensor closure. Monthly Notices of the Royal Astronomical Society, 505(4), 5784-5814. https://doi.org/10.1093/mnras/stab1686

We present a new smoothed particle hydrodynamics-radiative transfer method (SPH-M1RT) that is coupled dynamically with SPH. We implement it in the (task-based parallel) SWIFT galaxy simulation code but it can be straightforwardly implemented in other... Read More about Smoothed particle radiation hydrodynamics: two-moment method with local Eddington tensor closure.

Inconsistencies arising from the coupling of galaxy formation sub-grid models to pressure-smoothed particle hydrodynamics (2021)
Journal Article
Borrow, J., Schaller, M., & Bower, R. G. (2021). Inconsistencies arising from the coupling of galaxy formation sub-grid models to pressure-smoothed particle hydrodynamics. Monthly Notices of the Royal Astronomical Society, 505(2), 2316-2327. https://doi.org/10.1093/mnras/stab1423

Smoothed particle hydrodynamics (SPH) is a Lagrangian method for solving the fluid equations that is commonplace in astrophysics, prized for its natural adaptivity and stability. The choice of variable to smooth in SPH has been the topic of contentio... Read More about Inconsistencies arising from the coupling of galaxy formation sub-grid models to pressure-smoothed particle hydrodynamics.

Supermassive black holes in cosmological simulations I: MBH − M⋆ relation and black hole mass function (2021)
Journal Article
Habouzit, M., Li, Y., Somerville, R. S., Genel, S., Pillepich, A., Volonteri, M., …Vogelsberger, M. (2021). Supermassive black holes in cosmological simulations I: MBH − M⋆ relation and black hole mass function. Monthly Notices of the Royal Astronomical Society, 503(2), 1940-1975. https://doi.org/10.1093/mnras/stab496

The past decade has seen significant progress in understanding galaxy formation and evolution using large-scale cosmological simulations. While these simulations produce galaxies in overall good agreement with observations, they employ different sub-... Read More about Supermassive black holes in cosmological simulations I: MBH − M⋆ relation and black hole mass function.

The Chandra Deep Wide-field Survey: A New Chandra Legacy Survey in the Boötes Field. I. X-Ray Point Source Catalog, Number Counts, and Multiwavelength Counterparts (2020)
Journal Article
Masini, A., Hickox, R. C., Carroll, C. M., Aird, J., Alexander, D. M., Assef, R. J., …Murray, S. S. (2020). The Chandra Deep Wide-field Survey: A New Chandra Legacy Survey in the Boötes Field. I. X-Ray Point Source Catalog, Number Counts, and Multiwavelength Counterparts. Astrophysical Journal Supplement, 251(1), Article 2. https://doi.org/10.3847/1538-4365/abb607

We present a new, ambitious survey performed with the Chandra X-ray Observatory of the 9.3 deg2 Boötes field of the NOAO Deep Wide-Field Survey. The wide field probes a statistically representative volume of the universe at high redshift. The Chandra... Read More about The Chandra Deep Wide-field Survey: A New Chandra Legacy Survey in the Boötes Field. I. X-Ray Point Source Catalog, Number Counts, and Multiwavelength Counterparts.

The Star-Formation Properties of the Observed and Simulated AGN Universe: BAT vs EAGLE (2020)
Journal Article
Jackson, T. M., Rosario, D., Alexander, D., Scholtz, J., McAlpine, S., & Bower, R. (2020). The Star-Formation Properties of the Observed and Simulated AGN Universe: BAT vs EAGLE. Monthly Notices of the Royal Astronomical Society, 498(2), 2323-2338. https://doi.org/10.1093/mnras/staa2414

In this paper we present data from 72 low redshift, hard X-ray selected AGN taken from the Swift-BAT 58 month catalogue. We utilise spectral energy distribution fitting to the optical to IR photometry in order to estimate host galaxy properties. We c... Read More about The Star-Formation Properties of the Observed and Simulated AGN Universe: BAT vs EAGLE.

Galactic inflow and wind recycling rates in the EAGLE simulations (2020)
Journal Article
Mitchell, P., Schaye, J., & Bower, R. (2020). Galactic inflow and wind recycling rates in the EAGLE simulations. Monthly Notices of the Royal Astronomical Society, 497(4), 4495-4516. https://doi.org/10.1093/mnras/staa2252

The role of galactic wind recycling represents one of the largest unknowns in galaxy evolution, as any contribution of recycling to galaxy growth is largely degenerate with the inflow rates of first-time infalling material, and the rates with which o... Read More about Galactic inflow and wind recycling rates in the EAGLE simulations.

Quasar Sightline and Galaxy Evolution (QSAGE) survey - II. Galaxy overdensities around UV luminous quasars at z = 1-2 (2020)
Journal Article
Stott, J., Bielby, R., Cullen, F., Burchett, J., Tejos, N., Fumagalli, M., …Prochaska, J. (2020). Quasar Sightline and Galaxy Evolution (QSAGE) survey - II. Galaxy overdensities around UV luminous quasars at z = 1-2. Monthly Notices of the Royal Astronomical Society, 497(3), 3083-3096. https://doi.org/10.1093/mnras/staa2096

We demonstrate that the UV brightest quasars at z = 1–2 live in overdense environments. This is based on an analysis of deep Hubble Space Telescope WFC3 G141 grism spectroscopy of the galaxies along the lines-of-sight to UV luminous quasars in the re... Read More about Quasar Sightline and Galaxy Evolution (QSAGE) survey - II. Galaxy overdensities around UV luminous quasars at z = 1-2.

Galactic outflow rates in the EAGLE simulations (2020)
Journal Article
Crain, R. A., Bower, R. G., Schaye, J., & Mitchell, P. D. (2020). Galactic outflow rates in the EAGLE simulations. Monthly Notices of the Royal Astronomical Society, 484(3), 3971-3997. https://doi.org/10.1093/mnras/staa938

We present measurements of galactic outflow rates from the EAGLE suite of cosmological simulations. We find that gas is removed from the interstellar medium (ISM) of central galaxies with a dimensionless mass loading factor that scales approximately... Read More about Galactic outflow rates in the EAGLE simulations.

Numerical convergence of hydrodynamical simulations of galaxy formation: the abundance and internal structure of galaxies and their cold dark matter haloes (2020)
Journal Article
Ludlow, A. D., Schaye, J., Schaller, M., & Bower, R. (2020). Numerical convergence of hydrodynamical simulations of galaxy formation: the abundance and internal structure of galaxies and their cold dark matter haloes. Monthly Notices of the Royal Astronomical Society, 493(2), 2926-2951. https://doi.org/10.1093/mnras/staa316

We address the issue of numerical convergence in cosmological smoothed particle hydrodynamics simulations using a suite of runs drawn from the EAGLE project. Our simulations adopt subgrid models that produce realistic galaxy populations at a fiducial... Read More about Numerical convergence of hydrodynamical simulations of galaxy formation: the abundance and internal structure of galaxies and their cold dark matter haloes.

From peculiar morphologies to Hubble-type spirals: the relation between galaxy dynamics and morphology in star-forming galaxies at z ∼ 1.5 (2019)
Journal Article
Gillman, S., Tiley, A., Swinbank, A., Harrison, C., Smail, I., Dudzevičiūtė, U., …Sweet, S. (2020). From peculiar morphologies to Hubble-type spirals: the relation between galaxy dynamics and morphology in star-forming galaxies at z ∼ 1.5. Monthly Notices of the Royal Astronomical Society, 492(1), 1492-1512. https://doi.org/10.1093/mnras/stz3576

We present an analysis of the gas dynamics of star–forming galaxies at z ∼ 1.5 using data from the KMOS Galaxy Evolution Survey (KGES). We quantify the morphology of the galaxies using HSTCANDELS imaging parametrically and non-parametrically. We comb... Read More about From peculiar morphologies to Hubble-type spirals: the relation between galaxy dynamics and morphology in star-forming galaxies at z ∼ 1.5.

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