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All HEAsoft-related links on this page are to HTML files or data stored at Leicester, unless indicated by a (US).
Please refer any problems with these pages to Duncan Law-Green (ledas-help@star.le.ac.uk).

XSTAR Home Page

 XSPEC fit of XSTAR model
XSTAR model with cosmic abundances and a -1 power-law ionizing continuum.
XSTAR News

XSTAR v2.1 is HERE! v2.1 is now the official supported version. See the manual for the list of changes from v2.0.

What is XSTAR?
XSTAR is a computer program for calculating the physical conditions and emission spectra of photoionized gases.

How Do I Get XSTAR?
The XSTAR package is now integrated and distributed with the HEASARC's standard FTOOLS package. However, it is also available as a standalone package. The XSTAR code (including documentation) can be downloaded from here.

Online Documentation
XSTAR documentation is viewable online or can be downloaded as a PostScript file or HTML.

Related Files
Sample XSPEC table models
Subroutine xstar
Postscript plots of atomic rates(42 Mbytes).
An ascii version of the xstar database (16 Mbytes).

The xstar database sorted according to process. Includes line finding lists and level energies. (16 Mbytes).

Sample output: Lexington H II region.

Sample inputs.

Platforms Currently Supported
XSTAR requires a standard Fortran 77 compiler. It has been tested on the following systems:

Conferences
For questions and comments about XSTAR, contact Tim Kallman at tim@xstar.gsfc.nasa.gov
This is the LEDAS (UK) mirror of the HEASARC LHEASoft archive.
HEASARC web pages maintained by Bryan K. Irby. Helplines for FTOOLS and XANADU @ HEASARC.
UK mirror maintained by: Dr. Duncan Law-Green, LEDAS Support Scientist (ledas-help@star.le.ac.uk), (0116)252-2589.
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