93 citations · 311 across the 6 of their papers we have counts for
6 papers
The Lyman-alpha forest at redshifts 0.1 -- 1.6: good agreement between a large hydrodynamic simulation and HST spectra
Pascal Paschos, Tridivesh Jena, David Tytler +2
We give a comprehensive statistical description of the Lyman-alpha absorption from the intergalactic medium in a hydrodynamic simulation at redshifts 0.1-1.6, the range of redshift…
The Effect of Large-Scale Power on Simulated Spectra of the Lya forest
David Tytler, Pascal Paschos, David Kirkman +2
We study the effects of box size on ENZO simulations of the intergalactic medium (IGM) at z = 2. We follow statistics of the cold dark matter (CDM) and the Lya absorption. We find…
Metal Absorption Systems in Spectra of Pairs of QSOs
David Tytler, Mark Gleed, Carl Melis +6
We present the first large sample of absorption systems in paired QSOs consisting of 691 absorption systems in the spectra of 310 QSOs including 170 pairings. All these absorption…
The H I opacity of the intergalactic medium at redshifts 1.6 < z < 3.2
David Kirkman, David Tytler, Nao Suzuki +8
We use high quality echelle spectra of 24 QSOs to provide a calibrated measurement of the total amount of Lyman-alpha forest absorption (DA) over the redshift range 2.2 < z < 3.2.…
A Concordance Model of the Lyman-alpha Forest at z = 1.95
T. Jena, M. L. Norman, D. Tytler +12
We present 40 fully hydrodynamical numerical simulations of the intergalactic gas that gives rise to the Ly-alpha forest. We make artificial spectra from each and measure three out…
Cosmological parameters sigma_8, the baryon density, and the UV background intensity from a calibrated measurement of H I Lyman-alpha absorption at z = 1.9
David Tytler, David Kirkman, John M. O'Meara +7
We identify a concordant model for the intergalactic medium (IGM) at redshift z=1.9 that uses popular values for cosmological and astrophysical parameters and accounts for all bary…