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Upper Limits on the 21 cm Power Spectrum at z = 5.9 from Quasar Absorption Line Spectroscopy
Jonathan C. Pober, Bradley Greig, Andrei Mesinger
We present upper limits on the 21 cm power spectrum at calculated from the model-independent limit on the neutral fraction of the intergalactic medium of $x_{\rm H{\small…
Dark-ages reionization and galaxy formation simulation--VII. The sizes of high-redshift galaxies
Chuanwu Liu, Simon J. Mutch, Gregory B. Poole +5
We investigate high-redshift galaxy sizes using a semi-analytic model constructed for the Dark-ages Reionization And Galaxy-formation Observables from Numerical Simulation project.…
Hydrogen Epoch of Reionization Array (HERA)
David R. DeBoer, Aaron R. Parsons, James E. Aguirre +51
The Hydrogen Epoch of Reionization Array (HERA) is a staged experiment to measure 21 cm emission from the primordial intergalactic medium (IGM) throughout cosmic reionization ($z=6…
Are we witnessing the epoch of reionisation at from the spectrum of J1120+0641?
Bradley Greig, Andrei Mesinger, Zoltán Haiman +1
We quantify the presence of Lyα damping wing absorption from a partially-neutral intergalactic medium (IGM) in the spectrum of the QSO, ULASJ1120+0641. Using a Bayesian fr…
First Limits on the 21 cm Power Spectrum during the Epoch of X-ray heating
A. Ewall-Wice, Joshua S. Dillon, J. N. Hewitt +62
We present first results from radio observations with the Murchison Widefield Array seeking to constrain the power spectrum of 21 cm brightness temperature fluctuations between the…
Lyα emission line reconstruction for high- QSOs
Bradley Greig, Andrei Mesinger, Ian D. McGreer +2
We introduce an intrinsic Lyα emission line profile reconstruction method for high- quasars (QSOs). This approach utilises a covariance matrix of emission line properties obtain…