815 citations · 8k across the 83 of their papers we have counts for
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Constraining Mixed Dark Matter models with high redshift Lyman-alpha forest data
Olga Garcia-Gallego, Vid Iršič, Martin G. Haehnelt +2
This study sets new constraints on Cold+Warm Dark Matter (CWDM) models by leveraging the small-scale suppression of structure formation imprinted in the Lyman- forest. Using the…
Constraints on Primordial Magnetic Fields from the Lyman-α forest
Mak Pavičević, Vid Iršič, Matteo Viel +5
We present the first constraints on primordial magnetic fields from the Lyman- forest using full cosmological hydrodynamic simulations. At the scales and redshifts probed by the…
The ionizing photon budget and effective clumping factor in radiative transfer simulations calibrated to Lyman-alpha forest data
Shikhar Asthana, Girish Kulkarni, Martin G. Haehnelt +3
Recent JWST observations have allowed for the first time to obtain comprehensive measurements of the ionizing photon production efficiency for a wide range of reion…
Constraints on dark photon dark matter from Lyman- forest simulations and an ultra-high signal-to-noise quasar spectrum
Andrea Trost, James S. Bolton, Andrea Caputo +3
The ultralight dark photon is a well-motivated, hypothetical dark matter candidate. In a dilute plasma, they can resonantly convert into photons, and heat up the intergalactic medi…
The Lyman-limit photon mean free path at the end of late reionisation in the Sherwood-Relics simulations
Jennifer Feron, Luke Conaboy, James S. Bolton +5
Recent evidence supporting reionisation ending at redshift z<6 includes the rapid redshift evolution of the mean free path for Lyman-limit photons through the intergalactic medium…
Deep Learning the Intergalactic Medium using Lyman-alpha Forest at
Fahad Nasir, Prakash Gaikwad, Frederick B. Davies +3
Unveiling the thermal history of the intergalactic medium (IGM) at holds the potential to reveal early onset HeII reionization or lingering thermal fluctuations f…
Late-end reionization with ATON-HE: towards constraints from Lyman- emitters observed with JWST
Shikhar Asthana, Martin G. Haehnelt, Girish Kulkarni +3
We present a new suite of late-end reionization simulations performed with ATON-HE, a revised version of the GPU-based radiative transfer code ATON that includes helium. The simula…
Particle initialization effects on Lyman- forest statistics in cosmological SPH simulations
Nabendu Kumar Khan, Girish Kulkarni, James S. Bolton +4
Confronting measurements of the Lyman- forest with cosmological hydrodynamical simulations has produced stringent constraints on models of particle dark matter and the thermal a…
Unveiling Dark Matter free-streaming at the smallest scales with high redshift Lyman-alpha forest
Vid Iršič, Matteo Viel, Martin G. Haehnelt +8
This study introduces novel constraints on the free-streaming of thermal relic warm dark matter (WDM) from Lyman- forest flux power spectra. Our analysis utilises a high-resolut…
Investigating the characteristic shape and scatter of intergalactic damping wings during reionization
Laura C. Keating, Ewald Puchwein, James S. Bolton +2
Ly damping wings in the spectra of bright objects at high redshift are a useful probe of the ionization state of the intergalactic medium during the reionization epoch. It has r…
Measuring the photo-ionization rate, neutral fraction and mean free path of HI ionizing photons at from a large sample of XShooter and ESI spectra
Prakash Gaikwad, Martin G. Haehnelt, Frederick B. Davies +16
We measure the mean free path (), photo-ionization rate () and neutral fraction () of hydrogen in 12 redshif…
Possible evidence for a large-scale enhancement in the Lyman- forest power spectrum at redshift
Margherita Molaro, Vid Iršič, James S. Bolton +5
Inhomogeneous reionization enhances the 1D Lyman- forest power spectrum on large scales at redshifts . This is due to coherent fluctuations in the ionized hydrogen fract…
Probing quasar lifetimes with proximate -centimetre absorption in the diffuse intergalactic medium at redshifts
Tomáš Šoltinský, James S. Bolton, Margherita Molaro +5
Enhanced ionizing radiation in close proximity to redshift quasars creates short windows of intergalactic Ly transmission blueward of the quasar Ly emission line…
The Sherwood-Relics simulations: overview and impact of patchy reionization and pressure smoothing on the intergalactic medium
Ewald Puchwein, James S. Bolton, Laura C. Keating +10
We present the Sherwood-Relics simulations, a new suite of large cosmological hydrodynamical simulations aimed at modelling the intergalactic medium (IGM) during and after the cosm…
Limits on non-canonical heating and turbulence in the intergalactic medium from the low redshift Lyman-alpha forest
James S. Bolton, Prakash Gaikwad, Martin G. Haehnelt +5
We examine the column density distribution function (CDDF) and Doppler parameter distribution from hydrodynamical simulations and Cosmic Origins Spectrograph (COS) observations of…
The effect of inhomogeneous reionisation on the Lyman- forest power spectrum at redshift : implications for thermal parameter recovery
Margherita Molaro, Vid Iršič, James S. Bolton +6
We use the Sherwood-Relics suite of hybrid hydrodynamical and radiative transfer simulations to model the effect of inhomogeneous reionisation on the 1D power spectrum of the \Lya…
Searching for the shadows of giants II: the effect of local ionisation on the Lyman- absorption signatures of protoclusters at redshift
Joel S. A. Miller, James S. Bolton, Nina Hatch
Local variations in the intergalactic medium (IGM) neutral hydrogen fraction will affect the Ly- absorption signature of protoclusters identified in tomographic surveys. Using t…
The detectability of strong 21 centimetre forest absorbers from the diffuse intergalactic medium in late reionisation models
Tomáš Šoltinský, James S. Bolton, Nina Hatch +6
A late end to reionisation at redshift is consistent with observed spatial variations in the Ly forest transmission and the deficit of Ly emitting galaxies arou…
The mean free path of ionizing photons at 5 < z < 6: evidence for rapid evolution near reionization
George D. Becker, Anson D'Aloisio, Holly M. Christenson +3
The mean free path of ionizing photons, , is a key factor in the photoionization of the intergalactic medium (IGM). At , however, may be sho…
The evolution of the low-density HI intergalactic medium from z=3.6 to 0: Data, transmitted flux and HI column density
Tae-Sun Kim, Bart P. Wakker, Fahad Nasir +8
We present a new, uniform analysis of the HI transmitted flux (F) and HI column density (N(HI)) distribution in the low-density IGM as a function of redshift z for 0<z<3.6 using 55…
Probing the thermal state of the intergalactic medium at with the transmission spikes in high-resolution Ly forest spectra
Prakash Gaikwad, Michael Rauch, Martin G. Haehnelt +13
We compare a sample of five high-resolution, high S/N Ly forest spectra of bright QSOs aimed at spectrally resolving the last remaining transmission spikes at…
Searching for the shadows of giants: characterising protoclusters with line of sight Lyman-α absorption
Joel S. A. Miller, James S. Bolton, Nina Hatch
We use state of the art hydrodyamical simulations from the Sherwood, EAGLE and Illustris projects to examine the signature of protoclusters obs…
Revealing reionization with the thermal history of the intergalactic medium: new constraints from the Lyman- flux power spectrum
Elisa Boera, George D. Becker, James S. Bolton +1
We present a new investigation of the thermal history of the intergalactic medium (IGM) during and after reionization using the Lyman- forest flux power spectrum at $4.0\lesssim…
A new Measurement of the Intergalactic Temperature at
Alberto Rorai, Robert F. Carswell, Martin G. Haehnelt +3
We present two measurements of the temperature-density relationship (TDR) of the intergalactic medium (IGM) in the redshift range using a sample of 13 high-qualit…