6 papers
The First Light seen in the redshifted 21-cm radiation
Paolo Tozzi, Piero Madau, Avery Meiksin +1
We show how the investigation of the redshifted 21-cm radiation can give insight into the development of structures in the early universe (at redshifts z>5). In particular we inves…
The Dark Ages: Searching for the Epoch of First Light
A Meiksin
Prior to the epoch of full reionization, the intergalactic medium and gravitationally collapsed systems will be detectable in 21-cm radiation. Physical mechanisms that would produc…
Simulating the Lyman Alpha Forest
Marie E. Machacek, Greg L. Bryan, Peter Anninos +2
In this paper we review the importance of the Lyman alpha forest as a probe of structure formation in the universe. We first discuss the statistics used to describe the Lyman alpha…
Cosmic Minivoids in the Intergalactic Medium
Avery Meiksin
The Gunn-Peterson effect, absorption of Lya photons by a homogeneous component of the intergalactic medium (IGM), potentially provides a test of Big Bang Nucleosynthesis (BBN). Wit…
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…
Lyman Alpha Forest Clustering Using Cell Counts Statistics
François R. Bouchet, Avery Meiksin
We present a novel technique for calculating \Lya forest correlations based on cell counts. It is applied to the line lists from 7 QSOs observed at high resolution ($Δv<25\kms$). T…