Bounds on ultralight bosons from the Event Horizon Telescope observation of Sgr A${}^{\ast }$

Akash Kumar Saha, Priyank Parashari, Tarak Nath Maity +3

Recent observation of Sagittarius A${}^{\ast }$ (Sgr A${}^{\ast }$) by the Event Horizon Telescope (EHT) collaboration has uncovered various unanswered questions in black hole (BH) physics. Beside…