Image Details
Caption: Figure 6.
Color–magnitude diagram of the detected companion candidates (we expediently add a suffix of “B” of the primary star “A”) overlaid with photometric libraries of field low-mass stars/substellar-mass objects (Dupuy & Liu 2012; Dupuy & Kraus 2013), as well as BT-Settl isochrones (blue solid: 1 Gyr; dashed: 5 Gyr; and dotted: 10 Gyr; Allard et al. 2012) and blackbody radiation (gray dashed line). We corrected the Keck/NIRC2 magnitudes into MKO/NSFCam filters to compare with the libraries using species (Stolker et al. 2020). We also added the expected ﹩L^{\prime} ﹩-band absolute magnitudes of the background stars around LSPM J1922+0702 (bgs1 and bgs2) assuming the same distance as the target star in the left panel. The right panel shows the zoomed-in diagram without the background stars.
© 2023. The Author(s). Published by the American Astronomical Society.