@inproceedings{Jaroschewski:20251X, author = "Jaroschewski, Ilja and Just, Johannes and Kun, Emma and Schussler, Fabian and Tjus, Julia and Veres, Patrik M.", title = "{J1048+7143: Signatures of a Supermassive Binary Black Hole Close to Merger?}", doi = "10.22323/1.501.0934", booktitle = "Proceedings of 39th International Cosmic Ray Conference {\textemdash} PoS(ICRC2025)", year = 2025, volume = "501", pages = "934" }