2 papers
astro-ph1997
The Column Density Distribution of the Lyman-Alpha Forest: A Measure of Small Scale Power
Lam Hui, Nickolay Y. Gnedin, Yu Zhang
Absorption lines in the Lyman-alpha forest can be thought of as peaks in neutral hydrogen density along lines of sight. The column density distribution (the number density of absor…
astro-ph1996
Cosmological Filaments and Minivoids: The Origin of Intergalactic Absorption
Yu Zhang, Avery Meiksin, Peter Anninos +1
Soon after the first QSO was identified, Gunn & Peterson searched for the expected characteristic absorption trough on the blueward side of Lya in the spectrum of the QSO due to an…