Quasar absorption line spectra, line lists, and publications.

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


Link to the master site at the University of Arizona.


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
2002 ApJS, 140, 143
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,
2002 ApJ, 571, 654
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
2002 ApJ, 571, 665
Journal Article (gzip ps) Figure 4 (gzip tar)





For questions, please contact:
    Jill Bechtold (jill as arizona edu), Jennifer Scott (jescott towson edu), or Adam Dobrzycki (adobrzyc eso org)

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