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Space Telescope Imaging Spectrograph Instrument Handbook for Cycle 22 > Chapter 13: Spectroscopic Reference Material > First-Order Spatial Profiles

First-Order Spatial Profiles
Grating1
Slit2
Flux in Center Pixel
Flux in Extraction Aperture
G140L & G140M
1200
1400
1700
0.2049
0.2655
0.2703
0.8197
0.8850
0.9009
G230L & G230M
2000
2500
3000
0.2838
0.3272
0.3182
0.9009
0.9091
0.9091
1
M mode profiles are assumed to be identical to L mode ­profiles.
2
Values are only weakly dependent on observing slit.

Figure 13.84: G140L, G140M, G230L, G230M Spatial Profiles
Grating1
Slit2
Flux in Center Pixel
Flux in Extraction Aperture
G230LB & G230MB
2000
2500
3000
0.3008
0.3390
0.3017
0.8130
0.8475
0.8621
1
M mode profiles are assumed to be identical to L mode profiles.
2
Values are only weakly dependent on observing slit.

Figure 13.85: G230LB and G230MB Spatial Profiles
 
Grating1
Slit2
Flux in Center Pixel
Flux in Extraction Aperture
G430L &
G430M
3000
4000
5000
0.4299
0.3551
0.3879
0.9348
0.9346
0.9346
G750L & G750M
5500
7000
9000
0.3163
0.3571
0.1985
0.9302
0.8929
0.7353
1
M mode profiles are assumed to be identical to L mode profiles.
2
Values are only weakly dependent on observing slit.

Figure 13.86: G430L, G430M, G750L, and G750M Spatial Profiles

Space Telescope Imaging Spectrograph Instrument Handbook for Cycle 22 > Chapter 13: Spectroscopic Reference Material > First-Order Spatial Profiles

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