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 14.61: F25CN182 NUV-MAMA Integrated System Throughput and Redleak



Table 14.24: 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 14.62: Point Source S/N vs. V+ABν for the F25CN182 NUV-MAMA mode. Curves are labeled by required exposure time (seconds).


Figure 14.63: 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 14.25: 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 14.64: Point Source Encircled Energy for F25CN182 NUV-MAMA


Figure 14.65: Point Source Intensity vs. Radius for F25CN182 NUV-MAMA