Cosmological analysis of the DESI DR1 Lyman-α 1D power spectrum
Extracting cosmology from DESI small-scale forest measurements with a hydrodynamical-simulation emulator.
Citation data pendingCosmology · Astrophysics · Scientific AI
From cosmic structure to cosmology
Combining cosmological surveys, numerical simulations, and scientific AI
85publications
5,800+citations
28h-index
NASA/ADS metrics · December 2025
Research
From observations to cosmology
I work where astrophysical modelling and precision cosmology meet, turning complex observations into robust constraints on the Universe.
Lyman-α forest
Fast, accurate models of intergalactic hydrogen clustering—from one-dimensional spectra to nonlinear three-dimensional structure.
Explore the research →Galaxy–halo connection
Using SHAMe, hydrodynamical simulations, and deeply nonlinear clustering to connect galaxy formation with cosmology.
Explore the research →ARFs & missing baryons
Using angular redshift fluctuations, peculiar velocities, and the kSZ effect to map diffuse intergalactic gas.
Explore the research →Within galaxy–halo connection
Assembly biasFormation history, selection, and clustering→
Lensing-is-lowConsistent galaxy clustering and lensing→
Two linked problems that shape how galaxies trace matter.
Selected research
Featured publications
The galaxy formation origin of the lensing-is-low problem
Tracing the clustering–lensing discrepancy to assembly bias, satellite segregation, and baryonic physics.
Citation data pendingMeasuring intergalactic gas from z = 0 to 5 with the kSZ effect
An 11σ tomographic detection showing that diffuse intergalactic gas accounts for roughly half of cosmic baryons.
Citation data pendingSubhalo abundance matching and assembly bias in EAGLE
Testing how well subhalo abundance matching reproduces galaxy clustering and its assembly-bias contribution.
Citation data pendingLatest work
Recent publications
Lyman-α forest holography: 3D predictions from 1D measurements
Mapping DESI one-dimensional constraints into nonlinear three-dimensional clustering predictions.
Cosmological analysis of the DESI DR1 Lyman-α 1D power spectrum
Turning precise small-scale forest measurements into constraints on the primordial matter spectrum.
Cosmological constraints from small-scale ELG clustering
Applying SHAMe-SF to DESI emission-line galaxies down to deeply nonlinear scales.
Open science
Tools built for inference
Open-source software that turns simulations and survey measurements into tractable cosmological models.
ForestFlow
Full-scale emulator for one- and three-dimensional Lyman-α forest clustering.
LaCE
Emulation framework for the Lyman-α one-dimensional flux power spectrum.
Cup1D
Likelihood and inference code used in the DESI DR1 P1D cosmological analysis.
Galaxpy
Fast galaxy spectral predictions used across seven scientific publications.