Bounds on Dark Matter Annihilation Cross-sections from Inert Doublet Model in the context of 21 cm Cosmology of Dark Ages

Rupa Basu, Madhurima Pandey, Debasish Majumdar +1

We study the fluctuations in the brightness temperature of 21-cm signal $\delta T_{21}$ at the dark ages ($z\sim 100$) with a dark matter candidate in Inter Doublet Model (IDM). We then e…