next up [*] [*]
Next: Relationship to HEAsoft Up: Introduction Previous: New in Version 11.3

How to contact us

XSPEC is distributed and maintained under the aegis of the GSFC High Energy Astrophysics Science Archival Research Center (HEASARC). If you have any problems with XSPEC please e-mail us at

If you want to be added to our electronic mailing list for announcements of new releases then send mail to

with the main body of the message comprising the line

subscribe XANADU Your Name

The XSPEC Web page comprises links to the anonymous ftp site, a Web version of the manual, and several useful documents, including a list of known bugs. The Web address is

Ben Dorman