We found a 'clogged' star explosion that’s so full of junk it moves way slower than it’s supposed to.

Original Paper

An energetic dirty fireball detected in soft X-rays

C.-Y. Dai, J. Quirola-Vásquez, Y.-H. Wang, H.-L. Li, J. Yang, X.-L. Chen, A.-L. Wang, H. Sun, X.-Y. Wang, B. Zhang, P. G. Jonker, Y. Liu, W. Yuan, D. Xu, Z.-G. Dai, M. E. Ravasio, L. Piro, P. O'Brien, D. Stern, H.-M. Zhang, Y.-P. Yang, T. An, Y.-L. Qiu, L.-P. Xin, W.-X. Li, R.-Y. Liu, X.-F. Wu, C.-Y. Wang, D.-M. Wei, Y.-F. Huang, F. E. Bauer, W.-H. Lei, B.-B. Zhang, N.-C. Sun, H. Gao, V. S. Dhillon, J. An, C.-H. Bai, A. Martin-Carrillo, H.-Q. Cheng, J. A. Chacon Chavez, Y. Chen, G.-W. Du, J. N. D. van Dalen, A. Esamdin, Y.-Z. Fan, X. Gao, F. Harrison, J.-W. Hu, M.-Q. Huang, S.-M. Jia, A. J. Levan, C.-K. Li, D.-Y. Li, E.-W. Liang, S. Littlefair, X.-W. Liu, Z.-Y. Liu, Z.-X. Ling, D. B. Malesani, H.-W. Pan, A. Rodriguez, A. Rossi, D. Mata Sánchez, J. Sánchez-Sierras, X.-J. Sun, M. A. P. Torres, A. P. C. van Hoof, X.-F. Wang, Q.-Y. Wu, X.-P. Xu, Y.-F. Xu, Y.-W. Yu, C. Zhang, M.-H. Zhang, S.-N. Zhang, Y. Zhang, Y.-H. Zhang, Z.-P. Zhu

arXiv · 2603.26213