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The diversity and variability of star formation histories in models of galaxy evolution
(2020-07-25)
Understanding the variability of galaxy star formation histories (SFHs) across a range of time-scales provides insight into the
underlying physical processes that regulate star formation within galaxies. We compile the ...
The origin of the dust extinction curve in milky way-like galaxies
(Oxford University Press, 2021)
We develop a cosmological model for the evolution of dust grains in galaxies with a distribution of sizes in order to understand the origin of the Milky Way dust extinction curve. Our model considers the formation of active ...
The origin and evolution of Lyα blobs in cosmological galaxy formation simulations
(IOP Publishing Ltd, 2021)
High-redshift Lyα blobs (LABs) are an enigmatic class of objects that have been the subject of numerous observational and theoretical investigations. It is of particular interest to determine the dominant power sources for ...
Galaxy cold gas contents in modern cosmological hydrodynamic simulations
(Oxford University Press, 2020-07-03)
We present a comparison of galaxy atomic and molecular gas properties in three recent cosmological hydrodynamic simulations,
namely SIMBA, EAGLE, and IllustrisTNG, versus observations from z ∼ 0 to 2. These simulations ...
X-ray emission from hot gas in galaxy groups and clusters in SIMBA
(Oxford University Press, 2020-08-31)
We examine X-ray scaling relations for massive haloes (M500 > 1012.3 M) in the SIMBA galaxy formation simulation. The X-ray
luminosity, LX versus M500 has power-law slopes ≈5
3 and ≈8
3 above and below 1013.5 M, deviating ...
Breaking baryon-cosmology degeneracy with the electron density power spectrum
(IOP Publishing, 2022)
Uncertain feedback processes in galaxies affect the distribution of matter, currently limiting the power of weak lensing surveys. If we can identify cosmological statistics
that are robust against these uncertainties, or ...
Finding universal relations in Subhalo properties with artificial intelligence
(The Astrophysical Journal, 2022)
We use a generic formalism designed to search for relations in high-dimensional spaces to determine if the total mass of a subhalo can be predicted from other internal properties such as velocity dispersion, radius, or ...
Imprints of temperature fluctuations on the z ∼ 5 Lyman-α forest: a view from radiation-hydrodynamic simulations of reionization
(Oxford academic, 2019)
Reionization leads to large spatial fluctuations in the intergalactic temperature that can persist
well after its completion. We study the imprints of such fluctuations on the z ∼ 5 Ly α
forest flux power spectrum using ...
The vandels survey: The star-formation histories of massive quiescent galaxies at 1.0 < z < 1.3
(Oxford Academics, 2019)
We present a Bayesian full-spectral-fitting analysis of 75 massive (M∗>1010.3M⊙) UVJ-selected galaxies at redshifts of 1.0 < z < 1.3, combining extremely deep rest-frame ultraviolet spectroscopy from VANDELS with ...
Ceers key paper. I. An early look into the first 500myr of galaxy formation with jwst
(American Astronomical Society, 2023)
We present an investigation into the first 500 Myr of galaxy evolution from the Cosmic Evolution Early Release
Science (CEERS) survey. CEERS, one of 13 JWST ERS programs, targets galaxy formation from z ∼ 0.5 to >10
using ...