STIS Instrument Handbook for Cycle 25
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Space Telescope Imaging Spectrograph Instrument Handbook for Cycle 25 > Chapter 14: ImagingReference Material > CCD Long-Pass Imaging F28X50LP

CCD Long-Pass Imaging F28X50LP
Description
The F28X50LP mode is useful for deep imaging longward of 5500 . The field of view is 28x50”. The ACS/WFC with the F814W filter will be more appropriate for most programs.
Recommended Uses
Recommended for deep high-resolution imaging between 5500 and 10,000 . Default aperture for target acquisitions.
Special Considerations
Very red sources may show significant wings from detector halo (see Section 7.2.8).
 
Pivot λ ()
Speak
Bλ
R80 (arcsec)
Figure 14.7: Throughput for F28x50LP
Table 14.4: F28X50LP Sensitivity & Throughput
Figure 14.8: Point Source S/N vs. V+ABν for the F28X50LP filter. Top curves are for low sky; bottom curves are for average sky. Curves are labeled by required exposure time (seconds).
Figure 14.9: Extended Source S/N vs. V+ABν for the F28X50LP filter for gain=1. Top curves are for a source area of 0.2 arcsec2; bottom curves are for 1 arcsec2. Average sky assumed. Curves are labeled by required exposure time (seconds).
Table 14.5: Radial Profile for F28X50LP
Figure 14.10: Point Source Encircled Energy for F28X50LP
Figure 14.11: Point Source Intensity vs. Radius for F28X50LP

Space Telescope Imaging Spectrograph Instrument Handbook for Cycle 25 > Chapter 14: ImagingReference Material > CCD Long-Pass Imaging F28X50LP

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