Marx 4.4.0

MARX Home Page

Marx 4.4 has been released. See the installation page for links to the marx source code.

Marx is a suite of programs created and maintained by the MIT/CXC/HETG group and is designed to enable the user to simulate the on-orbit performance of the Chandra X-ray Observatory. Marx provides a detailed ray-trace simulation of how Chandra responds to a variety of astrophysical sources and can generate standard FITS event files and images as output. It contains detailed models for Chandra's High Resolution Mirror Assembly (HRMA), the HETG and LETG gratings, and all the focal plane detectors.

Marx-4.4 Highlights

The marx calibration files have been updated to match those of the latest Chandra CALDB (version 4.1.1).

Vignetting by the HRMA support structs has been added. This means that for far off-axis sources, the shadowing by the radial support struts may be seen in the marx-generated PSF.

This page was last updated Jan 30, 2009 by John E. Davis.
Technical questions should be addressed to marx-help at space mit edu.