Welcome to the Documentation for FastSpecFit¶
Overview¶
FastSpecFit is a stellar continuum and emission-line modeling code for DESI which is optimized for speed and simplicity; it uses
physically motivated stellar population synthesis and emission-line templates to
jointly model the three-camera optical spectrophotometry from DESI and the
ultraviolet through infrared broadband photometry (fastspec). Alternatively,
it can be used to model just the broadband photometry (fastphot), although
in either case DESI redshifts are required.