3 papers
astro-ph.CO2025
Large-scale surveys of the quasar proximity effect
Rupert A. C. Croft, Patrick Shaw, Ann-Marsha Alexis +6
The UV radiation from high redshift quasars causes a local deficit in the neutral hydrogen absorption (Lyman-alpha forest) in their spectra, known as the proximity effect. Measurem…
astro-ph.CO2025
Forecasting the Detection of Lyman-Alpha Forest Weak Lensing from the Dark Energy Spectroscopic Instrument and Other Future Surveys
Patrick Shaw, Rupert A. C. Croft, R. Benton Metcalf
The apparent angular positions of quasars are deflected on the sky by the gravitational field sourced by foreground matter. This weak lensing effect is measurable through the disto…
astro-ph.CO2025
Weak Lensing the non-Linear Ly-alpha Forest
Patrick Shaw, Rupert A. C. Croft, R. Benton Metcalf
We evaluate the performance of the Lyman- forest weak gravitational lensing estimator of Metcalf et al. on forest data from hydrodynamic simulations and ray-traced simulated le…