6X0.2 Aperture

Description

This slit is used with echelle gratings.

Recommended Uses

A good slit for echelle observations of extended sources with isolated emission lines.

Special Considerations

This slit can be used with all echelle gratings. Please note that use of this slit with an extended source will produce order overlap and may make analysis difficult (see also Section 13.7).


Table 13.27: 6X0.2 Throughputs.

λ

% Throughput

1200

66.2

1400

70.5

1600

73.8

1800

76.1

2000

77.7

2200

79.3

2400

80.7

2600

81.8

2800

82.7

3000

83.4

3200

84.0

3400

84.5

Projected Length (arcsec)

Aperture

MAMA (E-modes)

Width (arcsec)

6X0.2

6.0

0.2

Figure 13.74: 6X0.2 Aperture Throughput as a Function of Wavelength.