Subtract the scattered light image from the original observed image. The software presently supports modes E140M, E140H, and E230M. Mode E230H is not yet supported. Model Image minus Object Image. This image is subtracted from the original STIS image and the spectrum is then re-extracted. Original Image minus computed scattered light.
Solid line is the data.
The dashed line is the model. Example extractions from the E140M Absorption Cell data. The lower plot shows the scattered light corrected extraction. Original Image minus computed scattered light. Fig. 7 and Fig.