Skip to content

v1.4 [LEGACY] -- Improved FAST compatibility and fixed BEST_FROM_SIM

Compare
Choose a tag to compare
@cschreib cschreib released this 08 Nov 16:26

The main changes in this version concerns how the program behave compared to the original FAST. The filter file is now read in a more robust way, so your custom FILTER.RES files that worked with FAST are also guaranteed to work with FAST++. The default AB zero point is switched back to 25 (the default in FAST, even though it does not make sense...). And finally, the handling of EAzY photo-zs is now by default the same as FAST (but it can still be changed).

The second most important change concerns the BEST_FROM_SIM option. In the previous version, using this option would produce correct fit parameters, but the chi2 would be infinite and the best-fit SEDs would be invalid. This is now fixed.

In addition, the input/output were vastly optimized (more than ten time faster), and several small fixes were applied to the terminal output messages.

NB: This is a "legacy" release. These versions of FAST++ are meant to reproduce the behavior of the old FAST and not introduce any other feature. If you want more fancy options and updated stuff, look for a non-legacy release.