Orbit and Motion of the Brown Dwarf Companion Derived from Multiple Observations (IMAGE)

National Institutes of Natural Sciences

Orbit and Motion of the Brown Dwarf Companion Derived from Multiple Observations

Caption

Figure 2: Our orbital fitting results. The left panel shows the projected orbit of the companion inferred from Keck direct imaging (blue points at upper right) and Gaia astrometric acceleration (red arrow). Axes indicate offsets in right ascension and declination (arcseconds). Color scale represents companion mass. The right panel shows radial velocity variations of the host star measured by Subaru (red points), along with simulated orbital solutions color-coded by companion mass. The bottom sub-panel shows residuals after fitting. Vertical axis is radial velocity (meters per second).

Credit

Qier An (UCSB) and Uyama et al. (2025)

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