If “Al Khalas” is proven to occur within a star cluster, it provides evidence of the influence of invisible dark matter on objects and nearby galaxies.
Analysis of astronomical observations by researchers at the European Space Agency has shown that the star cluster closest to our solar system experiences a fracture due to the gravitational pull of an unknown giant object.
وحسب Statement to the AgencyIf Hydes is proven to occur within the stellar group, it provides evidence for the influence of invisible dark matter on objects and nearby galaxies.
Discomfort in the bull’s head
The Hydes Group with Big Dipper is the nearest open star cluster, located 153 light-years from the Sun. In the Taurus constellation in the northern and southern hemispheres, it can be easily seen in the form of bright stars in the form of “V”, which represent the head of the region. The cluster contains about 350 stars, moving at a speed of 32 kilometers per second.
In a new study, researchers from the European Space Agency discovered that while the stars in our galaxy are closely related to their general background, stars in our galaxy are experiencing remarkable turbulence due to the gravitational pull of an invisible physical object. Published The result Finally in the scientific journal Astronomy and Astronomy.
The researchers believe that this finding provides evidence for the effect of dark matter (subhalos), which are thought to be invisible clouds that encircle the galaxy disk formed after the creation of the Milky Way and extend beyond visible boundaries. It spreads through it and creates a transparent infrastructure that exerts a large gravitational influence on the orbs.
The researchers hope that the group will gradually lose stars due to the attraction of dark matter, because a star trapped by gravity will disturb the rest of the stars, changing their path to the edges of the group. From there, these stars can be drawn by the gravitational pull of the galaxy to form two long tails.
These tails are called gravitational tidal tails, one of which follows the star cluster and the other moves outward, which scientists have not previously found in nearby star clusters.
To find tidal tails, scientists have found stars moving in the sky similar to a star cluster. Thanks to data from the European Space Agency’s satellite “Gia”, scientists have been able to measure the distances of more than a billion stars in our galaxy and accurately estimate their motions.
“These are the two most important dimensions to look for in tidal tails in the Milky Way’s star clusters,” said Theresa Yarabkova, a researcher at the European Space Agency.
Using a computer model that mimics the various disturbances that occur in stars escaping from a cluster in space over millions of years, scientists have been able to understand the magnitude of the orbits.
After comparing the simulations with real data, scientists have identified thousands of stars that once belonged to the Hides clusters, which today extend thousands of light-years across the galaxy into two giant tidal tails.
The cluster is tearing …
Scientists were surprised to find something in the tidal tail, which means something more brutal is gradually tearing up the star cluster. After reactivating the simulations, the researchers proved that the data could be reconstructed if the tail collided with a cloud of matter containing 10 million solar cells.
But what could this mass be? No gas cloud or other star cluster of this size was observed near the cluster. “If a visual structure is not found even in future targeted searches, it may be a subset of dark matter,” the researcher replies.
Regarding the significance of this discovery, the lead author of the study adds, “The way the Milky Way is viewed has completely changed with the data of the Moon (Gia). Thanks to these findings, we can sub-map. The structure of the Milky Way is better than ever.”