Image Details
Caption: Figure 4.
Same proper-motion test as in Figure 2 for the companion candidates around LSPM J1922+0702. The first and second epochs correspond to the NIRC2 observations on 2022 August 8 and 2022 November 8, respectively. We attribute the difference between the expected position (red plus sign) and the second epoch (orange plus sign) to the proper motion of the background stars and potential proper-motion acceleration by an unseen companion.
© 2023. The Author(s). Published by the American Astronomical Society.