A group consisting of Chinese Astronomers have discovered that absorption lines of 21 cm are an excellent tool to use simultaneously investigating the masses of particles in dark matter as well as early galaxies.
Absorption characteristics in the spectrum of radio sources that have high redshifts provide the only way of knowing the dawn of the cosmic era and the galaxies that are in their first generation in a research study released on this week in the journal of science Nature Astronomy.
The reason for this is the ultrafine structure lines that surround hydrogen atoms that are found within the distributions of intermediates.
The study shows that by the single-dimensional power spectrum for the 21-cm absorption lines this SKA (Square Kilometer Array) radio telescope is able to simultaneously discover the properties of galaxies that first formed as well as dark matter.
This is an important step in revealing the mysteries of dark matter, and understanding the origins of celestial bodies that were formed in the beginning of the universe.
Scientists Xu Yidong and Chen Xuelei who represent the National Astronomical Observatory of the Chinese Academy of Sciences, as well as Zhang Xin, from Northeast China University highlighted the significance of this finding to answer fundamental questions regarding how the galaxy formed the first galaxy generation.
One of the biggest concerns is how the cosmic dawn was created in addition to the ionization process and heat of the intergalactic space during the initial stages of galactic development.
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