New evidence shows that radiation of gamma rays from dark matter is less convincing, as other parts of galaxies also emit excessive gamma ray. This leaves the dark matter to remain the biggest mystery.
The excessive blip of radiation from the center of Milky Way galaxy detected as gamma rays are also found from other galaxies as recent research finds. The researchers who analyze data obtained from the Fermi Gamma Ray Space Telescope found that the other control regions, located further away from the center of Milky Way also emits the abundant of gamma rays radiation. These findings surprised the researchers who expect to uncover the mystery of dark matter by associating dark matter with gamma rays radiation.
“What I see in the control regions looks just like what I see in the galactic center,” Astrophysicist Andrea Albert of Los Alamos National Laboratory in New Mexico who also participated in the analysis said. “That's a bummer.”
Gamma rays radiation was previously believed was emitted by dark matter as its signature of activities. However, this finding has weakened the case of dark matter, similar to the previous finding as reported last month in the Science Magazine. The finding found the presence of a very high-energy gamma rays from pulsars in the dwarf stars, detected by the High-Altitude Water Cherenkov Observatory in Mexico.
The two findings annihilated theory that suggested radiation of gamma rays is the signature of dark matter. Thus, bringing back the mystery of dark matter back to square one. Albert along with her colleagues from the Kavli Institute for Particle Astrophysics and Cosmology at Stanford University are baffled with the finding.
In order to reveal the relationship between the dark matter and gamma rays, NASA and government research agencies from five countries France, Germany, Italy, Japan, and Sweden launched a space observatory into space in 2008. The space observatory was named Fermi Gamma-ray Space Telescope, after the Italian physicist Enrico Fermi, the pioneer of high-energy physics. Watch the insight from NASA Goddard Space Flight Center about dark matter as obtained by Fermi below:
