Are the Lyman alpha forest "clouds" expanding pancakes?
Accepted version
Peer-reviewed
Repository URI
Repository DOI
Change log
Authors
Haehnelt, Martin G
Abstract
The large sizes of Lyman alpha ``clouds'' inferred from coincident absorption in the spectrum of close quasar pairs suggests that these are transient flattened structures of small overdensity. It is argued that the observed absorbers should be preferentially located in underdense regions of the universe and should typically expand faster than the Hubble flow.
Description
Keywords
astro-ph, astro-ph
Journal Title
Astrophysics and Space Science Library
Conference Name
Cold Gas at High Redshift,
Journal ISSN
0067-0057
Volume Title
Publisher
Springer Netherlands