AE has been evolving and improving for over a decade. As more and more automtion has been added, some AE components are no longer commonly called directly, but are instead called by higher-level tools. For reference, this appendix retains the original description of several AE ``stages'' that now rarely called directly.
The first input parameter to all stages of AE is the name of an ASCII file containing a list of sources that should be processed. Usually this list will include all the sources you're working with, but in some stages it is useful to define subsets of sources that should be processed in different ways, e.g. sets of sources to be fit with different spectral models.
For the first stage (CONSTRUCT_REGIONS) of AE, this file must be a table consisting of 5 whitespace-separated columns specifying the fundamental parameters of each source:
strcompress(/REMOVE_ALL, adstring( ra, dec, 1, /TRUNCATE))
Note that when when the ``precision'' parameter to adstring() is zero, standard CXC names of the form ``182001.9-160717'' are built. In crowded fields where those names may not be unique observers may wish to use a precision value of 1 to build names of the form ``181913.56-160129.9''.
; Comments start with semicolon. 181913.56-160129.9 274.806530 -16.024992 0.90 1.4967 181913.69-160110.5 274.807070 -16.019584 0.90 1.4967 ; Comments can be anywhere. 181914.42-161234.6 274.810120 -16.209638 0.90 1.4967 181922.01-160314.9 274.841730 -16.054165 0.90 1.4967