Characterization of stellar companions from high-contrast long-slit spectroscopy data - The EXtraction Of SPEctrum of COmpanion (EXOSPECO) algorithm

Open Access

Fig. 3

Bottom half of the residual image r_⊕ for the HR 3549 data with stellar leakages estimated by the TSVD method as defined in Eq. (7) and with the warped image shown in Fig. 2. Compared to the original data shown in Fig. 1, the companion signal appears more distinctly (indicated by the two arrows).

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