F25CN182—NUV-MAMA

Description

The F25CN182 filter with the NUV-MAMA provides medium bandwidth imaging of the continuum near 1900 Å.

Recommended Uses

Continuum filter for C III].

 

Pivot λ (Å)	FWHM (Å)	AB mag zero point	Speak	Bλ	R80 (arcsec)	Flux in central pixel
2004.5	677.9	21.558	2.42e+13	641.6	0.23	10%

Figure 14.65: F25CN182 NUV-MAMA Integrated System Throughput and Redleak

Table 14.13: F25CN182 NUV-MAMA Sensitivity & Throughput

λ	Sensitivity	% Throughput
1300.	5.7E11	0.02
1400.	1.29E12	0.04
1500.	2.43E12	0.07
1600.	5.26E12	0.14
1700.	1.01E13	0.26
1800.	1.57E13	0.38
1900.	2.06E13	0.48
2000.	2.38E13	0.52
2100.	2.21E13	0.46
2200.	1.68E13	0.34
2300.	1.13E13	0.22
2400.	7.47E12	0.14
2500.	5.21E12	0.09
2600.	3.89E12	0.07
2700.	2.98E12	0.05
2800.	2.32E12	0.04

Figure 14.66: Point Source S/N vs. V+ABν for the F25CN182 NUV-MAMA mode. Curves are labeled by required exposure time (seconds).

Figure 14.67: Extended Source S/N vs. V+ABν for the F25CN182 NUV-MAMA mode. 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 14.1: Radial Profile for F25CN182*

Radius			Fraction of Energy Encircled
Pixels	Arcsec	Intensity
1	0.024	4.177e-02	0.179
1.5	0.037	2.686e-02	0.302
2	0.049	1.620e-02	0.422
3	0.073	5.757e-03	0.565
4	0.098	2.720e-03	0.647
5	0.122	1.425e-03	0.700
10	0.245	2.600e-04	0.810
15	0.367	1.234e-04	0.876
20	0.490	6.357e-05	0.925
25	0.613	3.483e-05	0.956
30	0.735	2.099e-05	0.979
40	0.980	2.113e-06	0.999

* See STIS ISR 2003-01.

Figure 14.68: Point Source Encircled Energy for F25CN182 NUV-MAMA

Figure 14.69: Point Source Intensity vs. Radius for F25CN182 NUV-MAMA