Quasar absorption line spectra, line lists, and publications.

You are welcome to use the data, but please reference the papers.


Link to the mirror site at the Harvard-Smithsonian Center for Astrophysics


The Lyman Alpha Forest Near 34 Quasars with z > 2.6
J. Bechtold, 1994, ApJ Supplement, 91, 1
Journal Article Line Lists Only Spectra


Simulation Analysis of the Lyman alpha Forest: I. Cloud Properties at z=3
A. Dobrzycki and J. Bechtold
1996 ApJ, 457, 102
Journal Article Line Lists Only Spectra


A Uniform Analysis of the Lyman alpha forest at z = 0 - 5:
I. The sample and distribution of clouds at z > 1.7

J. Scott, J. Bechtold, and A. Dobrzycki
2000 ApJS, 130, 37
Journal Article Line Lists Only Spectra
Line Lists- PostScript format Spectra- PostScript format (1 Mb)


A Uniform Analysis of the Lyman alpha forest at z = 0 - 5:
II. Measuring the mean intensity of the extragalactic ionizing background
using the proximity effect

J. Scott, J. Bechtold, A. Dobrzycki, and V. Kulkarni
2000 ApJS, 130, 67
Journal Article


A Uniform Analysis of the Lyman Alpha Forest at z = 0 - 5:
III. HST FOS Spectral Atlas
Jill Bechtold, Adam Dobrzycki, Brenda Wilden, Miwa Morita,
Jennifer Scott, Danuta Dobrzycka, Kim-Vy Tran, Thomas L. Aldcroft
2001 ApJS, in press
Journal Article (PS) Figure 2 (PS) Figure 3 (PS) Figure 1 (Gzip'd Tar)
Spectra Line lists and machine readable tables


A Uniform Analysis of the Lyman Alpha Forest at z = 0 - 5:
IV. The clustering and evolution of clouds at z < 1.7
Adam Dobrzycki, Jill Bechtold, Jennifer Scott, Miwa Morita,
2001 ApJS, in press
Journal Article (gzip ps)


A Uniform Analysis of the Lyman Alpha Forest at z = 0 - 5:
V. The extragalactic ionizing background at low redshift
Jennifer Scott, Jill Bechtold, Miwa Morita, Adam Dobrzycki, Varsha P. Kulkarni
2001 ApJS, in press
Journal Article (gzip ps) Figure 4 (gzip tar)





For questions, please contact:
    Jill Bechtold (jill@as.arizona.edu), Jennifer Scott (jscott@as.arizona.edu), or Adam Dobrzycki (adam@cfa.harvard.edu)

This work was funded by the National Science Foundation and NASA.