Bounds on ultralight bosons from the Event Horizon Telescope observation of Sgr A Akash Kumar Saha, Priyank Parashari, Tarak Nath Maity, Abhishek Dubey, Subhadip Bouri and Ranjan Laha Eur. Phys. J. C, 84 9 (2024) 901 Published online: 05 September 2024 DOI: 10.1140/epjc/s10052-024-13239-x