Dark Matter Interacts with Electromagnetic Waves

The large-scale structure of DM cannot be directly seen, but it is believed it can be inferred from the distribution of visible galaxies formed from ordinary matter. Bright visible galaxies that emit the Lyman α (Lyα) emission line of the hydrogen atom (Lyα galaxies) are used to observe the large-scale structure of distant space. However, recently Momose et al. have reported cases where the large-scale structures of DM indicated by Lyα galaxies and other galaxies fail to match. This raises the possibility that Lyα galaxies may not correctly indicate the large-scale structure of DM. In the currently accepted cold DM model, DM and neutral hydrogen gas are thought to interact only through the mutual effects of gravity. However, according to Suto, DM and ordinary matter are like two sides of the same coin. By giving and receiving approximately 2m_ec² (1.022 MeV), it is possible to mutually convert between the two. If, in future observations of the density distribution of interstellar gas using Lyα emission lines, unexpected data is obtained that cannot be explained based only on absorption by neutral hydrogen gas, then the author believes the problem can be solved with Suto’s DM model.