Fig. 1
Example of a WFC3/G141 spectral image with the undispersed stellar image (0th order and 1st-order spectrum. The associated F130N direct image is superimposed. The spectral trace is shown by a dotted line that extends in the dispersion direction over a wavelength range 1.1–1.7 μm. The plain lines above and below the trace show the width of the extraction region.
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