User manual

WHIRC Data Reduction Manual Version 2.0, 2014 June 26 15
tapers to near zero at the edges. One can then copy the central 800 × 800 region into the
zero image to get something like the image in Fig. 2.11b. You may need to play with the
level of the zero image to get a smooth transition to the pupil subregion.
Figure 2.12: IRAF parameter listing for the task mkimage. This will generate a
2048 × 2048 image ‘whircpupil.fits’ with pixel values of 0.
Figure 2.13: IRAF parameter listing for the task rmpupil.