Astronomy and Astrophysics – Astrophysics
Scientific paper
1995-11-21
Astronomy and Astrophysics
Astrophysics
30 pages, Latex file (nofigure). Complete uuencoded Z-compressed postscript files of text as well as figures are available via
Scientific paper
10.1086/177128
The clustering properties of Ly ${\alpha}$ lines are analysed using an intermediate resolution ($\sim 1\AA$) spectra of 67 QSOs compiled from the literature. The pair velocity correlation function indicates a weak excess in the velocity intervals up to ${\rm \Delta v\;=\;600\; km\;s^{-1}}$. The z-integrated probability distribution of interline spacings also confirms the excess in the low velocity intervals. The dependence of pair velocity correlation on redshift and equivalent width are investigated. The cross-correlation properties of Ly $\alpha$ clouds with metal line redshifts are analysed. We do not find any tendency of Ly $\alpha$ lines to cluster around metal line systems. Depedence of the cross-correlation on redshift and equivalent widths of Ly $\alpha$ clouds are investigated. Various implications of the results are discussed.
No associations
LandOfFree
Dynamical History of Ly αclouds does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Dynamical History of Ly αclouds, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dynamical History of Ly αclouds will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-188049