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On the evolution of Lyman alpha clouds based upon the Minihalo modelIntergalactic clouds confined by the gravity of cold dark matter (CDM), the so called mini-halo, is considered. Assuming a simplified evolution law of UV flux and mass function of gas clouds, number density evolution and H1 column density distribution can be reproduced by mini-halo model. Considering interaction between supersonic flow and a mini-halo, spatial correlation and the proximity effect of Ly-alpha forest can be investigated.
Document ID
19930017576
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Murakami, Izumi (Tokyo Astronomical Observatory Mitaka, Japan)
Ikeuchi, Satoru (Tokyo Astronomical Observatory Mitaka, Japan)
Date Acquired
September 6, 2013
Publication Date
January 1, 1993
Publication Information
Publication: NASA. Ames Research Center, The Evolution of Galaxies and Their Environment
Subject Category
Astrophysics
Accession Number
93N26765
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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