Hello.
I am pleased to announce the release of version 4.4 of MARX, the
Chandra X-ray Observatory simulator. In addition to calibration
updates that bring it in-line with CALDB 4.1.1, this version of the
ray trace also includes the effect of the HRMA support struts, which
manifest themselves as radial "spokes" in the PSF of far off-axis
sources.
For more information about MARX and its availability, visit
<http://space.mit.edu/cxc/marx/>.
Thanks,
John E. Davis, for the MARX development team.
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