4 papers
Explaining the Lyman-alpha forest
Joop Schaye
It is shown that many properties of Ly-alpha forest absorbers can be derived using simple physical arguments. Analytical expressions are derived for the density and the size of an…
Mining for Metals in the Lyman Alpha Forest
Sara L. Ellison, Antoinette Songaila, Joop Schaye +1
In order to ascertain the extent of metal enrichment in the Ly alpha forest, we have analysed a very high S/N spectrum of the z = 3.625 QSO Q1422+231. We find that in high column d…
Constraining reionization using the thermal history of the baryons
Joop Schaye, Tom Theuns, Michael Rauch +2
The thermal evolution of the intergalactic medium (IGM) depends on the reionization history of the universe. Numerical simulations indicate that the low density IGM, which is respo…
Measuring the temperature of the intergalactic medium
Joop Schaye, Tom Theuns, Anthony Leonard +1
Numerical simulations indicate that the smooth, photoionized intergalactic medium (IGM) responsible for the low column density Lyman-alpha forest follows a well defined temperature…