Isolated lens galaxy spectrum recovered from spectral fitting. The light gray line shows the raw spectrum, and in black we show the Gaussian-filtered spectrum with a median clipping to remove outlying pixels caused by variations in absorption lines from the zabs = 1.946 system. The red line indicates the best-fit galaxy template of a single stellar population (t = 11 Gyr), and the blue squares show the SDSS photometry of the lensing galaxy. The inset in the upper right corner shows the posterior probability of the photometric redshift estimation from EAZY, where the dashed red line marks the best-fit lens redshift.
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