Caltech HIRES Quasar Damped Lyman Alpha (DLA) System Database


In Collaboration with Dr. Wallace Sargent (Caltech), and Dr. Michael Rauch (OCIW), Dr. Bryan Penprase (Pomona College) has assembled the results of a sample of 76 Quasar High Resolution Spectra, taken at the Keck Telescope with the HIRES spectrograph between the years of 1990-2005. Below are links to the available reduced spectra, which include tables of ionic abundances, plots of optical depth and absorption with velocity, and in many cases, fits to the curve of growth for individual species.

The results will help elucidate the production of elements in the early universe, the evolution of abundances of r and s process elements, and the structure and physical conditions of the interstellar clouds within the absorbing galaxies in the foregrounds of quasars ranging in distance from 7-12 billion light years.

Quasars in the database and the results are below.



Quasar          Associated fits file       z(DLA)          Basic Results Page           Page for N,O,S,Cr,and Zn        Summary Results Page

Q0000-263         q0000.fits            3.39002         Q0000-263 Results          N,O,S,Cr,Zn Results          q0000.fits.z3.39002 Summary
Q0100+130         q0100.fits            2.30900         Q0100+130 Results          N,O,S,Cr,Zn Results          q0100.fits.z2.30900 Summary
Q0100+130         q0100.fits            2.66268         Q0100+130 Results          N,O,S,Cr,Zn Results          q0100.fits.z2.66268 Summary
Q0207+0503         q0207.fits            3.66610         Q0207+0503 Results          N,O,S,Cr,Zn Results          q0207.fits.z3.66610 Summary
Q0207+0503         q0207.fits            3.86359         Q0207+0503 Results          N,O,S,Cr,Zn Results          q0207.fits.z3.86359 Summary
Q0528-250         q0528.fits            2.14100         Q0528-250 Results          N,O,S,Cr,Zn Results          q0528.fits.z2.14100 Summary
Q0528-250         q0528.fits            2.81126         Q0528-250 Results          N,O,S,Cr,Zn Results          q0528.fits.z2.81126 Summary
Q0642+44         q0642.fits            3.12326         Q0642+44 Results          N,O,S,Cr,Zn Results          q0642.fits.z3.12326 Summary
Q0741+4741         q0741.fits            3.01742         Q0741+4741 Results          N,O,S,Cr,Zn Results          q0741.fits.z3.01742 Summary
HS0757+5218         q0757.fits            3.04000         HS0757+5218 Results          N,O,S,Cr,Zn Results          q0757.fits.z3.04000 Summary
Q0841+1256         q0841.fits            2.37450         Q0841+1256 Results          N,O,S,Cr,Zn Results          q0841.fits.z2.37450 Summary
Q0841+1256         q0841.fits            2.47652         Q0841+1256 Results          N,O,S,Cr,Zn Results          q0841.fits.z2.47652 Summary
Q0930+2858         q0930.fits            3.23520         Q0930+2858 Results          N,O,S,Cr,Zn Results          q0930.fits.z3.23520 Summary
Q0930+2858         q0930.fits            3.24620         Q0930+2858 Results          N,O,S,Cr,Zn Results          q0930.fits.z3.24620 Summary
Q0940-1050         q0940.fits            2.82438         Q0940-1050 Results          N,O,S,Cr,Zn Results          q0940.fits.z2.82438 Summary
Q0940-1050         q0940.fits            2.83461         Q0940-1050 Results          N,O,S,Cr,Zn Results          q0940.fits.z2.83461 Summary
Q1011+4315         q1011.fits            2.95870         Q1011+4315 Results          N,O,S,Cr,Zn Results          q1011.fits.z2.95870 Summary
Q1033-0327         q1033.fits            4.16294         Q1033-0327 Results          N,O,S,Cr,Zn Results          q1033.fits.z4.16294 Summary
Q1055+4611         q1055.fits            2.90943         Q1055+4611 Results          N,O,S,Cr,Zn Results          q1055.fits.z2.90943 Summary
Q1055+4611         q1055.fits            3.31720         Q1055+4611 Results          N,O,S,Cr,Zn Results          q1055.fits.z3.31720 Summary
Q1132+2243         q1132.fits            2.78320         Q1132+2243 Results          N,O,S,Cr,Zn Results          q1132.fits.z2.78320 Summary
Q1202-0725         q1202.fits            4.38338         Q1202-0725 Results          N,O,S,Cr,Zn Results          q1202.fits.z4.38338 Summary
Q1223+1753         q1223.fits            2.46608         Q1223+1753 Results          N,O,S,Cr,Zn Results          q1223.fits.z2.46608 Summary
q1244+3133         q1244.out.fits            2.75095         q1244+3133 Results          N,O,S,Cr,Zn Results          q1244.out.fits.z2.75095 Summary
Q1337+1121         q1337.fits            2.79578         Q1337+1121 Results          N,O,S,Cr,Zn Results          q1337.fits.z2.79578 Summary
Q1425+6039         q1425.fits            2.76984         Q1425+6039 Results          N,O,S,Cr,Zn Results          q1425.fits.z2.76984 Summary
Q1425+6039         q1425.fits            2.82687         Q1425+6039 Results          N,O,S,Cr,Zn Results          q1425.fits.z2.82687 Summary
Q1425+6039         q1425.fits            3.17500         Q1425+6039 Results          N,O,S,Cr,Zn Results          q1425.fits.z3.17500 Summary
Q1442+2931         q1442.fits            2.43870         Q1442+2931 Results          N,O,S,Cr,Zn Results          q1442.fits.z2.43870 Summary
Q1645+5520         q1645.fits            3.75256         Q1645+5520 Results          N,O,S,Cr,Zn Results          q1645.fits.z3.75256 Summary
Q1645+5520         q1645.fits            4.02730         Q1645+5520 Results          N,O,S,Cr,Zn Results          q1645.fits.z4.02730 Summary
Q1850+4015         q1850.fits            1.98980         Q1850+4015 Results          N,O,S,Cr,Zn Results          q1850.fits.z1.98980 Summary
Q1946+7658         q1946.fits            2.84440         Q1946+7658 Results          N,O,S,Cr,Zn Results          q1946.fits.z2.84440 Summary
Q2206-199N         q2206.fits            1.92006         Q2206-199N Results          N,O,S,Cr,Zn Results          q2206.fits.z1.92006 Summary
Q2206-199N         q2206.fits            2.07630         Q2206-199N Results          N,O,S,Cr,Zn Results          q2206.fits.z2.07630 Summary
Q2231-0015         q2231.fits            2.06660         Q2231-0015 Results          N,O,S,Cr,Zn Results          q2231.fits.z2.06660 Summary
Q2233+1310         q2233.fits            3.14930         Q2233+1310 Results          N,O,S,Cr,Zn Results          q2233.fits.z3.14930 Summary
Q2343+1232         q2343.fits            2.43130         Q2343+1232 Results          N,O,S,Cr,Zn Results          q2343.fits.z2.43130 Summary
Q2344+1228         q2344.fits            1.04650         Q2344+1228 Results          N,O,S,Cr,Zn Results          q2344.fits.z1.04650 Summary
Q2344+1228         q2344.fits            2.53789         Q2344+1228 Results          N,O,S,Cr,Zn Results          q2344.fits.z2.53789 Summary




Web site and analysis software developed by Dr. Bryan E. Penprase, Pomona College. 
email: bpenprase@pomona.edu