Image Details

Choose export citation format:

The Most Luminous Known Fast Blue Optical Transient AT 2024wpp: Unprecedented Evolution and Properties in the Ultraviolet to the Near-infrared

  • Authors: Natalie LeBaron, Raffaella Margutti, Ryan Chornock, Nayana A. J., Olivia Aspegren, Wenbin Lu, Brian D. Metzger, Daniel Kasen, Thomas G. Brink, Sergio Campana, Paolo D'Avanzo, Jakob T. Faber, Matteo Ferro, Alexei V. Filippenko, Ryan J. Foley, Xinze Guo, Erica Hammerstein, Saurabh W. Jha, Charles D. Kilpatrick, Giulia Migliori, Dan Milisavljevic, Kishore C. Patra, Huei Sears, Jonathan J. Swift, Samaporn Tinyanont, Vikram Ravi, Yuhan Yao, Kate D. Alexander, Prasiddha Arunachalam, Edo Berger, Joe S. Bright, Chuck Cynamon, Kyle W. Davis, Braden Garretson, Puragra Guhathakurta, Wynn V. Jacobson-Galán, D. O. Jones, Ravjit Kaur, Stefan Kimura, Tanmoy Laskar, Morgan Nuñez, Michaela Schwab, Monika D. Soraisam, Nao Suzuki, Kirsty Taggart, Eli Wiston, Yi Yang, WeiKang Zheng

Natalie LeBaron et al 2026 The Astrophysical Journal Letters 997 .

  • Provider: AAS Journals

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.

Other Images in This Article

Show More

Copyright and Terms & Conditions

Additional terms of reuse