Download Page for SPECTRUM
Linux/UNIX distribution:
spectrum v2.77c
Version 2.77 now computes the Na I D lines in the "strong lines" routine.
Please ensure that the line list you use does not include the Na I D lines.
Feb 27, 2018
June 24, 2021: A minor correction was made to the codes for ABUNDANCE and
BLACKWELL, as both those codes used the value log(N_H/N_Total) = -0.0405
instead of the value in stdatom.dat, which is -0.0360. That will result in
a difference of about 0.004 in the abundances if you are using column 6 in
the output for ABUNDANCE. This correction was incorporated in version 2.77b.
July 22, 2021: A minor correction was made to the code for SPECTRUM increasing the
limit for the length of a line in a line list file from 100 to 200. This
correction was introduced in version 2.77c.
Auxiliary X-Windows programs for Spectrum
Documentation for Auxiliary programs
Line lists
Line list file: 3000 - 6800 Angstroms:
luke.lst.gz
Near Infrared Line List File: 6800 - 10,000 Angstroms:
luke.nir.lst.gz
Infrared Line List File: 1 - 4 microns
luke.ir.gz
UV line list for luke-warm stars:
lukeuv.lst.gz
Isotope-compatible line lists. Can be used only with v2.75 and above:
luke.iso.lst.gz
lukeall2.iso.lst.gz -- 900A - 4 microns
MS Windows binaries
Binaries for SPECTRUM and Auxiliary programs to run on the DOS command
line
spectrum276e.zip
A Visual Basic Shell to run the above Windows binaries from a GUI
spectrum101.zip