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Space Telescope Imaging Spectrograph Instrument Handbook for Cycle 17

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50CORON-Clear CCD


Description

The 50CORON imaging mode is useful for imaging of faint targets next to bright ones. The STIS CCD optics include a Lyot stop, which suppresses the wings of the PSF. See CCD Clear Imaging-50CCD for sensitivities, throughputs, and encircled energies. See Section 12.10 for the PSF and for a discussion of coronagraphic imaging. A diagram showing the layout of the 50CORON aperture and the wedge positions, can be seen in Figure 12.6

Recommended Uses

Recommended for broad-band coronagraphic imaging. Observers considering use of this mode may also want to investigate ACS coronagraphic imaging.

Pivot (Å) FWHM (Å)
AB mag zero point
Speak
B
R80 (arcsec) Flux in central pixel
5754.1
4333.0
26.295
2.03e+15
4930.6
0.16
14%


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