Russian Federation
From the theory of the inflationary Universe, it follows that the wavelength of the relic radiation (RR) can be ~230 μm, which is ~5 times shorter than the wavelength of the microwave background radiation (MBR) of ~1 mm in the region of the maximum of the energy spectrum. The RR may correspond to the observed rise in the MBR spectrum in the region of ~0.9 cm, formed due to the absorption of the RR at z ~ 80 in the main absorption band of ~2.8 μm of HD molecules (formed during the recombination epoch at z r ~ 230) with subsequent emission in the rotational line of ~110 μm. The MBR can be formed by the radiation of the first stars (with a mass of ~6∙M☉ and an energy release of ~10 52 erg), which ionized gas at the epoch z i ~ 17 ± 2 according to the hydrogen radio line. Gas and dust clouds (formed by stars completing their evolution) could have absorbed the UV radiation of the first stars, with subsequent radiation in the region of ~60 µm shifted to the ~1 mm.
relic radiation, cosmic background radiation, theory of the inflationary Universe
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