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.…