A research study is going on the phenomena of the cosmic dawn. The cosmic dawn signifies a period when the first stars marked their presence in the universe. Now the on-going study highlights the fact that the dark matter might be enclosing particles bearing small electric charge.
Avi Loeb says, “If the evidence stands up, it adds immensely to our understanding of the enigmatic substance that comprises more than 80% of the universe’s mass. Dark matter is only known by its gravitational interactions with ordinary matter. Those reveal that something is out there, even though we don’t know what it is.” Avi Loeb is the chair of Department of Astronomy at the Harvard University in the United States.
The project is entitled as Experiment to Detect the Global Epoch of Reionisation (EoR) Signature or EDGES. It makes the use of a couple of small radio telescopes in Western Australia. The radio telescopes couple monitors the entire sky for the radio emissions with approximately eighty megahertz frequencies. This value lies below that of the FM radio dial’s lower end.
The target of the on-going research is to observe and study the phenomenon named as the cosmic microwave background radiation.
What is the Cosmic Microwave Background Radiation (CBM Radiation)?
While you talk about the CBM radiation, it is nothing but a faint glow which the Big Bang left behind. During its emission, the radiation was in the form of microwave radiation. It was the universe’s ensuing expansion which the stretched the waves of these CBM radiations. As a result of this wave stretching, today the CBM wave lies in the FM radio band.
Instead of this, what holds importance is the 21-centimeter band, which has been stretched by two to three meters by the time and space. When the circumstances are favorable, this section of the CBM is available for the absorption by Hydrogen. Once absorbed, an absorption band gets imprinted over the CBM spectrum.