AtomDB Charge Exchange Model (ACX)

The AtomDB team is happy to announce the release of the first AtomDB Charge Exchange (acx) model suite. This is version 1.0.2, released July 18th 2018. The code works in XSPEC and ISIS, enabling CX modeling along the lines of that described in Smith et al. 2012. More detailed papers describing these models have either been submitted or are near to submission. Installation and usage instructions are also included in the tarball.

Version 1.0.2 contains changes to header files so that the model will work with the latest HEASOFT 6.24. There have been no other changes, so the results should be the same as earlier versions.

The model is available on GitHub or can be downloaded as a zip file.

If you are still using an older version of HEASOFT and version 1.0.2 doesn't work, you can try installing version 1.0.1

AtomDB Charge Exchange Model version 2 beta 1(ACX2)

A new charge exchange model, based on energy dependent cross sections from the Kronos database, has been developed. this model has been released as part of pyatomdb. The atomic data necessary to run the data can be downloaded

Within this tarball there is a sample code for running in pyxspec. Note that there are significantly more parameters in the ACX2 model than are exposed throug this interface