Access to the FTP site for SPECTRUM

The latest UNIX/Linux version of SPECTRUM as well as Windows binaries may be obtained at the download sites linked below.

The latest "stable" version of SPECTRUM is 2.75

For UNIX/Linux, download spectrum275d.tar.gz and at least one of the linelist files.
For Windows, download spectrum275.zip, spectrum101.zip (a Windows GUI) and at least one of the line list files.

Note that v2.75 is a major upgrade for SPECTRUM.  Files associated with v2.75, such as atom.dat and stdatom.dat are not compatible with earlier versions.

Full instructions for installing SPECTRUM on both UNIX/Linux and Windows platforms are included in the documentation.

A Beta version of SPECTRUM (v2.76d) is now available.  This is a major upgrade over 2.75.  It supports new molecules, adds support for autoionizing lines, and includes new code that significantly increases the speed
of computation, especially in high density regions of the spectrum.  This release also corrects some minor errors that prevented compilation on some of the newest releases of Linux (esp. Ubuntu 9.04).  This version has been extensively tested and will shortly become the stable version.  You will find v2.76d and new, updated documentaton at the very bottom of the download page.

SPECTRUM download

If the above site is down, or is too slow, try the following mirror site:

PM Mirror site:  SPECTRUM download


Read the  Notes on Windows  or the online or PDF documentation to learn how to install the Windows binaries.

If you have any difficulties compiling  or running SPECTRUM on your  computing platform, please do not hesitate to contact me at grayro@appstate.edu.