F25ND3 - FUV-MAMA

Description

The F25ND3 mode with the FUV-MAMA detector provides broad band imaging with an attenuation of 10-3. The R80 and central pixel flux are unmeasured but assumed to be approximately the same as produced by the F25QTZ filter.

Recommended Uses

Recommended for broad-band imaging of bright objects requiring 10-3 attenuation to meet FUV-MAMA bright object protection limits.


Pivot λ (Å)

FWHM (Å)

AB mag zero point

Speak

Bλ

R80 (arcsec)

Flux in central pixel

1376.0

316.2

16.070

1.26e+11

368.9

0.28

10%

Figure 14.71: F25ND3 FUV-MAMA Integrated System Throughput and Redleak



Table 14.28: Throughputs and Sensitivities for F25ND3 FUV-MAMA

λ

Sensitivity

% Throughput

1150.

1.00E10

3.8E-4

1200.

7.62E10

2.8E-3

1250.

1.15E11

4.0E-3

1300.

1.16E11

3.9E-3

1350.

1.08E11

3.5E-3

1400.

9.64E10

3.0E-3

1450.

7.88E10

2.4E-3

1500.

6.09E10

1.8E-3

1550.

4.68E10

1.3E-3

1600.

3.46E10

9.5E-4

1650.

2.61E10

6.9E-4

1700.

1.79E10

4.6E-4

1750.

1.19E10

3.0E-4

1800.

7.84E9

1.9E-4

1850.

3.11E9

7.4E-5

Figure 14.72: Point Source S/N vs. V+ABν for the F25ND3 FUV-MAMA mode. Curves are labeled by required exposure time (seconds).


Figure 14.73: Extended Source S/N vs. V+ABν for the F25ND3 FUV-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).