The 21-cm signal from the Cosmic Dawn: metallicity dependence of high mass X-ray binaries

Harman Deep Kaur, Yuxiang Qin, Andrei Mesinger +3

X-rays from High-Mass X-ray Binaries (HMXBs) are likely the main source of heating of the intergalactic medium (IGM) during Cosmic Dawn (CD), before the completion of reionization.…