Reawakening of GS 1843+00: A Multiwavelength Study of its 2026 Giant X-ray Outburst

Gaurava K. Jaisawal, Georgios Vasilopoulos, Francesco Carotenuto +1

GS 1843+00 (Ginga 1843+009) is a poorly studied Be/X-ray binary system that underwent a major X-ray outburst in 2026 February-May after nearly sixteen years of quiescence. We prese…