Harley Katz

University of Oxford — United Kingdom

Physics and Astronomy · Physical Sciences

35h-index3.4kcitations133works9.52yr avg
OpenAlex↗ORCID↗Google Scholar↗Lab page↗

Accepting Students?

No reports yet. Know if this professor is taking students?

Research Topics

Galaxies: Formation, Evolution, Phenomena(81), Astronomy and Astrophysical Research(62), Stellar, planetary, and galactic studies(40), Astrophysics and Star Formation Studies(34), Gamma-ray bursts and supernovae(17)

Publications133 total

MEGATRON: Disentangling Physical Processes and Observational Bias in the Multi-Phase ISM of High-Redshift Galaxies
The Open Journal of Astrophysics·2026Open Access
The Impact of Star Formation and Feedback Recipes on the Stellar Mass and Interstellar Medium of High-Redshift Galaxies
The Open Journal of Astrophysics·2026· 3 citedOpen Access
Uncertainties in high- <i>z</i> galaxy properties inferred from spectral energy distribution fittings using JWST NIRCam photometry
Astronomy and Astrophysics·2026Open Access
The Mass-Metallicity Relation and its Observational Effects at z~3-6
arXiv (Cornell University)·2025Open Access
Declining metallicity and extended He II in the outflow of an Epoch of Reionisation analogue galaxy
Astronomy and Astrophysics·2025Open Access
Effect of ionizing photon escape fraction in faint galaxies on modeling reionization history of the universe
arXiv (Cornell University)·2025Open Access
JWST and ALMA Joint Analysis with [O <scp>II</scp> ] <i>λλ</i> 3726, 3729, [O <scp>III</scp> ] <i>λ</i> 4363, [O <scp>III</scp> ] 88 <i>μ</i> m, and [O <scp>III</scp> ] 52 <i>μ</i> m: Multizone Evolution of Electron Densities at <i>z</i>  ∼ 0–14 and its Impact on Metallicity Measurements
The Astrophysical Journal·2025· 5 citedOpen Access
Discovery of red galaxy candidates at z ~ 12: Early dust growth or significant nebular emission with high-temperature stars?
arXiv (Cornell University)·2025Open Access
Cloudy with a chance of starshine: Possible photometric signatures of nebular-dominated emission in $1.5 &lt; z &lt; 8.5$ JADES galaxies
arXiv (Cornell University)·2025Open Access
MEGATRON: The environments of Population III stars at Cosmic Dawn and their connection to present day galaxies
arXiv (Cornell University)·2025Open Access
What Sets the Metallicity of Ultra-Faint Dwarfs?
The Open Journal of Astrophysics·2025Open Access
MEGATRON: the impact of non-equilibrium effects and local radiation fields on the circumgalactic medium at cosmic noon
arXiv (Cornell University)·2025Open Access
Impact of Cosmic Ray-driven Outflows on Ly<i>α</i> Emission in Cosmological Simulations
The Astrophysical Journal·2025Open Access
MEGATRON: how the first stars create an iron metallicity plateau in the smallest dwarf galaxies
arXiv (Cornell University)·2025Open Access
MEGATRON: Reproducing the Diversity of High-Redshift Galaxy Spectra with Cosmological Radiation Hydrodynamics Simulations
arXiv (Cornell University)·2025Open Access
JWST/NIRSpec Observations of High-ionization Emission Lines in Galaxies at High Redshift
The Astrophysical Journal·2025· 6 citedOpen Access
H-alpha as a Tracer of Star Formation in the SPHINX Cosmological Simulations
arXiv (Cornell University)·2025Open Access
A remarkable ruby: Absorption in dense gas, rather than evolved stars, drives the extreme Balmer break of a little red dot at <i>z</i> = 3.5
Astronomy and Astrophysics·2025· 41 citedOpen Access
21 Balmer Jump Street: The Nebular Continuum at High Redshift and Implications for the Bright Galaxy Problem, UV Continuum Slopes, and Early Stellar Populations
The Open Journal of Astrophysics·2025· 10 citedOpen Access
Impact of Cosmic Ray-driven Outflows on Lyman-$α$ Emission in Cosmological Simulations
arXiv (Cornell University)·2025Open Access
page 1 of 7Next →

Frequent Co-authors

Taysun Kimm(24), Joakim Rosdahl(22), Martin G. Haehnelt(20), J. Blaizot(18), Julien Devriendt(18), Adrianne Slyz(18), Thibault Garel(14), L. Michel-Dansac(13), Richard S. Ellis(10), Debora Sijacki(8), Nicolas Laporte(8), Sergio Martin-Alvarez(8), Aayush Saxena(7), Alex J. Cameron(6), Pierre Ocvirk(5), Romain Teyssier(5), Anne Verhamme(4), Stacy McGaugh(3), Martin P. Rey(3), Callum Witten(3)