Space Telescope Science Institute
STIS Instrument Handbook
help@stsci.edu
Table of Contents Previous Next Index Print


Space Telescope Imaging Spectrograph Instrument Handbook for Cycle 22 > Chapter 14: ImagingReference Material > F28X50OII—CCD

F28X50OII—CCD
Description
The F28X50OII mode is useful for narrow-band imaging of OII 3727 . The high throughput and high spatial resolution provide a significant advantage over WFPC2 imaging with the F375N filter for some purposes. The narrow bandpass may offer some advantages over ACS and either the HRC or WFC with the [O II] ramp filter.
Recommended Uses
Recommended for deep high-resolution O II imaging.
Special Considerations
This filter does not have a significant red leak. Flat field images taken through this filter show scattered light at the top and bottom of the frame. This is not expected to be a problem for astronomical targets
.
Pivot λ ()
Speak
Bλ
R80 (arcsec)
Figure 14.18: Throughput for F28x50OII
Table 14.8: F28X50OII Sensitivity & Throughput
Figure 14.19: Point Source S/N vs. Line Flux for the F28X50OII filter. Top curves are for low sky; bottom curves are for average sky. Curves are labeled by required exposure time (seconds).
Figure 14.20: Extended Source S/N vs. V+ABν for the F28X50OII for gain =1.Top curves are for an area of 0.2 arcsec2; bottom curves are for 1 arcsec2. Average sky assumed. Curves are labeled by required exposure time (seconds).
Table 14.9: Radial Profile for F28X50OII
Figure 14.21: Point Source Encircled Energy for F28X50OII
Figure 14.22: Point Source Intensity vs. Radius for F28X50OII

Space Telescope Imaging Spectrograph Instrument Handbook for Cycle 22 > Chapter 14: ImagingReference Material > F28X50OII—CCD

Table of Contents Previous Next Index Print