Voigt profile fitting program

Copyright (C) 1992 - 2014   R.F.Carswell, J.K.Webb

Last update: 14 Apr 2014

VERSIONS 9.5, 10.0 & 10.2

Contact: R.F.Carswell, Institute of Astronomy, Madingley Rd, Cambridge CB3 0HA, UK

The Voigt profile fitting program, VPFIT, documentation contains instructions on how to download the code, and set it up. Since the old ftp method may not work much longer (if it still does), the best way of getting the code and documentation is to use the use the links provided here and ignore any instructions in the older documentation (versions 10 and 9.5, which have not been updated) pointing to the ftp website.

There is a development version VPFIT10.2 (here as a gzipped tarfile) which is still very slowly evolving but has passed the standard tests so should be OK. The documentation also gets updated occasionally. Your probably won't see any notable differences, but the are some internal improvements and some added capabilities. This is the version which gets looked at if somebody reports a possible bug, or ambiguity in the documentation.

If you want an older version then VPFIT10 and VPFIT9.5 are available. The associated documentation is in vpfit10.pdf, rdgen10.pdf, vpfit9.5.pdf and rdgen9.5.pdf.

For those who like ftp version 9.5 is in vpfit9.5.pdf, which is also contained in the gzipped tarfile with the source code. Version 10 is still evolving (slowly), with a few enhancements and minor bugs corrected. A gzipped tarfile for version 10.0 is here. VPFIT10 documentation and that for RDGEN10 is also in the public ftp area.

This program is free software, distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. For a copy of the GNU General Public License see the information which comes e.g. with the GNU Emacs editor, or write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

Since the html version of the documentation is now so dated, and largely forgotten about, that it has now been removed. If you desperately want it, much of it might be accessed here.

FINALLY We do our best to make sure that the program gives accurate results, and try to remove bugs etc., but of course we can't guarantee anything.  If you have any problems, inconsistencies, please e-mail to the contact address at the top. If you make any improvements yourself we'd appreciate knowing about them and possibly incorporating them.

We are very grateful to Andrew Cooke, Mike Irwin, Julian King, Joe Liske and Michael Murphy for major contributions to various parts of the program. Also, for the many people who have provided other help, improvements and suggestions for its development -- many thanks.