4 papers
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…
The Evolution of O I over 3.2 < z < 6.5: Reionization of the Circumgalactic Medium
George D. Becker, Max Pettini, Marc Rafelski +11
We present a survey for metal absorption systems traced by neutral oxygen over . Our survey uses Keck/ESI and VLT/X-Shooter spectra of 199 QSOs with redshifts up to…
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…
Evidence for Large-Scale Fluctuations in the Metagalactic Ionizing Background Near Redshift Six
George D. Becker, Frederick B. Davies, Steven R. Furlanetto +3
The observed scatter in intergalactic Lyman- opacity at requires large-scale fluctuations in the neutral fraction of the intergalactic medium (IGM) after the expe…