NASA NTRS · 19900037424
Ly-alpha clouds - Isolated structures in cold dark matter cosmogony?
Abstract
A filter designed to study isolated density fluctuations is introduced and used to identify Ly-alpha cloud candidates in a biased CDM model. It is found that the number density of cloud candidates at z = 2.5 is too small to account for the observed number of lines. If Ly-alpha clouds have their origins in primordial density fluctuations, the CDM power spectrum does not have sufficient power on subgalactic scales to account for the observed structures.
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Babul, Arif. 1990-02-01. Ly-alpha clouds - Isolated structures in cold dark matter cosmogony?. https://ntrs.nasa.gov/citations/19900037424
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