F25ND3 - FUV-MAMA

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Description

The F25ND3 mode with the FUV-MAMA detector provides broad-band imaging with an attenuation of 10-3 with respect to similar filters (e.g., 25MAMA, F25QTZ). The R80 and central pixel flux are unmeasured but assumed to be approximately the same as produced by the F25QTZ filter.

Recommended Uses

This filter is recommended for broad-band imaging of objects that require attenuation by a factor of 103 to meet the 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. AB magnitude in the V-band for the F25ND3 FUV-MAMA mode. Curves are labeled by required exposure time (seconds).




Figure 14.73: Extended Source S/N vs. AB magnitude in the V-band 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).


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