Image Details
Caption: Figure 1.
The field of EP250916a observed with (a) Swift/XRT (0.5–10 keV). Panels (b), (c), and (d) display zoomed views of the Swift/UVOT (V-band), NOT/ALFOSC R-band, and LCO i﹩^{\prime} ﹩-filter images, respectively, centered on the Swift/XRT position (marked by a plus sign). Each zoomed-in panel shows a ∼8″ × 8″ region centered on the X-ray position. Both Gaia DR3 sources within the 2″ X-ray positional uncertainty (black circle) are also marked.
© 2026. The Author(s). Published by the American Astronomical Society.