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| ACS Instrument Handbook |
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Hα filter.Figure 10.76: Integrated system throughput for HRC/F658N.Figure 10.77: Point source S/N vs. V+ABν for the HRC/F658N filter. Top curves are for low sky; bottom curves are for average sky.Figure 10.78: Extended source S/N vs. V+ABν for the HRC/F658N filter. Top curves are for low sky and bottom curves are for average sky for a 1 arcsec2 area.