_version_ 1866912925403316224
author Liu, Jialian
Wang, Bao
Wang, Xiaofeng
Aguado, David
Lin, Weili
Rosa, Nancy-Elias
Liu, Qichun
Poidevin, Frederick
Perez-Fournon, Ismael
Li, Long
Wang, Ailing
Yang, Yi
Dai, Zigao
Filippenko, Alexei V.
Brink, Thomas G.
Xiao, Di
Li, Wenxiong
Liang, Yifang
Wu, Xuefeng
Tinyanont, Samaporn
Geng, Jinjun
Yan, Shengyu
Yuan, Weimin
Zhang, Jujia
Zeng, Xiangyun
Zheng, WeiKang
Wang, Yuanming
An, Tao
Cai, YongZhi
Cooke, Jeff
Dai, Lixin
Farina, Andrea
Hu, Maokai
Li, Ye
Jin, Chichuan
Liu, Yuan
Fernandez-Nespral, David Lopez
Oramas, Alicia Lopez
Reguitti, Andrea
Shu, Xinwen
Song, Cuiying
Sun, Hui
Sun, Ning-chen
Wang, Lifan
Wang, Tinggui
Wei, Junjie
Wu, Qingyu
Xiang, Danfeng
Yang, Lei
Li, Liping
Wang, Zhenyu
author_facet Liu, Jialian
Wang, Bao
Wang, Xiaofeng
Aguado, David
Lin, Weili
Rosa, Nancy-Elias
Liu, Qichun
Poidevin, Frederick
Perez-Fournon, Ismael
Li, Long
Wang, Ailing
Yang, Yi
Dai, Zigao
Filippenko, Alexei V.
Brink, Thomas G.
Xiao, Di
Li, Wenxiong
Liang, Yifang
Wu, Xuefeng
Tinyanont, Samaporn
Geng, Jinjun
Yan, Shengyu
Yuan, Weimin
Zhang, Jujia
Zeng, Xiangyun
Zheng, WeiKang
Wang, Yuanming
An, Tao
Cai, YongZhi
Cooke, Jeff
Dai, Lixin
Farina, Andrea
Hu, Maokai
Li, Ye
Jin, Chichuan
Liu, Yuan
Fernandez-Nespral, David Lopez
Oramas, Alicia Lopez
Reguitti, Andrea
Shu, Xinwen
Song, Cuiying
Sun, Hui
Sun, Ning-chen
Wang, Lifan
Wang, Tinggui
Wei, Junjie
Wu, Qingyu
Xiang, Danfeng
Yang, Lei
Li, Liping
Wang, Zhenyu
contents Fast blue optical transients (FBOTs) represent one of the most exotic astrophysical transients, exhibiting unusually strong emission across X-ray, optical, and radio wavelengths. Their physical origins remain highly debated, with proposed explanations ranging from stellar explosion to tidal disruption event (TDE). Here we report observations of the most luminous FBOT, AT 2024wpp whose post-peak luminosity rebrightens in X ray and becomes flattening in optical in a manner follows the decay rate characteristic of TDEs ($L_{\rm bol} \propto t^{-5/3}$). This invokes energy contribution of accretion by a central compact object, getting further corroborations from hardening of X-ray spectral index and detection of outflow inferred from the emission lines at similar phase. Detailed modeling of luminsoity evolution favors a coalesce explosion of a 34 M$_{\odot}$ Wolf-Rayet star with a 15 M$_{\odot}$ black hole (BH), demonstrating that some FBOTs may be associated with TDE of a stellar blackhole.
format Preprint
id arxiv_https___arxiv_org_abs_2602_20523
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle AT 2024wpp: the most luminous fast-evolving optical transient linked to the merger explosion of a black-hole binary
Liu, Jialian
Wang, Bao
Wang, Xiaofeng
Aguado, David
Lin, Weili
Rosa, Nancy-Elias
Liu, Qichun
Poidevin, Frederick
Perez-Fournon, Ismael
Li, Long
Wang, Ailing
Yang, Yi
Dai, Zigao
Filippenko, Alexei V.
Brink, Thomas G.
Xiao, Di
Li, Wenxiong
Liang, Yifang
Wu, Xuefeng
Tinyanont, Samaporn
Geng, Jinjun
Yan, Shengyu
Yuan, Weimin
Zhang, Jujia
Zeng, Xiangyun
Zheng, WeiKang
Wang, Yuanming
An, Tao
Cai, YongZhi
Cooke, Jeff
Dai, Lixin
Farina, Andrea
Hu, Maokai
Li, Ye
Jin, Chichuan
Liu, Yuan
Fernandez-Nespral, David Lopez
Oramas, Alicia Lopez
Reguitti, Andrea
Shu, Xinwen
Song, Cuiying
Sun, Hui
Sun, Ning-chen
Wang, Lifan
Wang, Tinggui
Wei, Junjie
Wu, Qingyu
Xiang, Danfeng
Yang, Lei
Li, Liping
Wang, Zhenyu
High Energy Astrophysical Phenomena
Fast blue optical transients (FBOTs) represent one of the most exotic astrophysical transients, exhibiting unusually strong emission across X-ray, optical, and radio wavelengths. Their physical origins remain highly debated, with proposed explanations ranging from stellar explosion to tidal disruption event (TDE). Here we report observations of the most luminous FBOT, AT 2024wpp whose post-peak luminosity rebrightens in X ray and becomes flattening in optical in a manner follows the decay rate characteristic of TDEs ($L_{\rm bol} \propto t^{-5/3}$). This invokes energy contribution of accretion by a central compact object, getting further corroborations from hardening of X-ray spectral index and detection of outflow inferred from the emission lines at similar phase. Detailed modeling of luminsoity evolution favors a coalesce explosion of a 34 M$_{\odot}$ Wolf-Rayet star with a 15 M$_{\odot}$ black hole (BH), demonstrating that some FBOTs may be associated with TDE of a stellar blackhole.
title AT 2024wpp: the most luminous fast-evolving optical transient linked to the merger explosion of a black-hole binary
topic High Energy Astrophysical Phenomena
url https://arxiv.org/abs/2602.20523