Tight constraints on the excess radio background at z = 9.1 from LOFAR
Tight constraints on the excess radio background at z = 9.1 from LOFAR
ABSTRACT The ARCADE2 and LWA1 experiments have claimed an excess over the cosmic microwave background (CMB) at low radio frequencies. If the cosmological high-redshift contribution to this radio background is between 0.1 per cent and 22 per cent of the CMB at 1.42 GHz, it could explain the tentative EDGES …