Image Details
Caption: Figure 8.
Soft X-ray (0.3–10 keV; LX, dark-blue circles), broadband X-ray (0.3–30 keV; LXtot, orange circles), NIR (fitted power-law luminosity in the range 2000–24,000 Å; LNIR, yellow circles), and UVOIR bolometric luminosity (LUVOIR; teal circles) evolution of AT 2024wpp in its first 100 days. We also show the “engine luminosity” Lengine ≡ LX + LUVOIR with dark-red circles. We find that at 10 days < δt < 30 days, Lengine ∝ t−3.4 (gray dashed line) and that a similar scaling applies to LUVOIR at 10 days < δt < 30 days, while LX ∝ t−2.5 (blue dashed line). At δt > 30 days, there is some indication that the decay of Lengine flattens slightly toward the t−2.5 power law. The orange shaded area marks the time of appearance of clear spectral features (δt ≈ 16–30 days; Figures 2 and 6). X-ray data from Paper II.
© 2026. The Author(s). Published by the American Astronomical Society.