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Investigating Ionization in the Intergalactic Medium

open access: yesThe Astrophysical Journal
Abstract The intergalactic medium (IGM) contains >50% of the baryonic mass of the Universe, yet the mechanisms responsible for keeping the IGM ionized have not been fully explained. Hence, we investigate ion abundances from the largest blind QSO absorption catalog for clouds that show C iv, N v, and O vi simultaneously. The wavelength
Brad Koplitz   +2 more
openaire   +3 more sources

Cosmological Halos: A Search for the Ionized Intergalactic Medium [PDF]

open access: bronze, 2000
Robert M. Geller   +6 more
openalex   +1 more source

Measuring the temperature of the intergalactic medium

open access: yes, 1999
Numerical simulations indicate that the smooth, photoionized intergalactic medium (IGM) responsible for the low column density Lyman-alpha forest follows a well defined temperature-density relation. We show that such an equation of state results in a cutoff in the distribution of line widths (b-parameters) as a function of column density (N) for the ...
Schaye, J.   +3 more
openaire   +3 more sources

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