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Appendix A
IRAF Primer

In This Chapter...

Initiating IRAF / A-1
IRAF Basics / A-4
Getting IRAF and STSDAS / A-13

The Image Reduction and Analysis Facility (IRAF), developed by the National Optical Astronomy Observatories (NOAO), forms the basis of the Space Telescope Science Data Analysis System (STSDAS). IRAF contains numerous packages of programs, called tasks, that perform a wide range of functions from reading data tapes to producing plots and images. Most astronomers will already be familiar with IRAF, but we provide this tutorial for HST observers who are beginners with IRAF. It includes information on:


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