A team of researchers has discovered that pairs of stars exiled from their host galaxy. The discovery was made with the help of data collected by the Chandra X-ray Observatory, and it proves a theory which inferred that star duos would be rejected by the galaxy in which they reside. These pairs of stars are known under the name of binary stars systems in the scientific community. The stars orbit around each other, and there are several combinations, with some being formed by stars similar to our sun to while others include neutron stars or black holes.
Neutron stars are born when a star explodes during the supernova stage. When certain conditions are present, the remnants of these explosions will come from neutron stars, which can be pushed across the galaxy by the force of the blast, which led to their appearance. The information obtained by Chandra suggests that their companion stars may follow them in some cases. In this scenario, the companion star is pushed along with the neutron star because it was orbiting around the star which reached the supernova stage.
NASA Chandra X-ray Observatory Spotted Pairs Of Stars Exiled From Their Host Galaxy
If the companion star remains in the proximity of the neutron star, the latter will attract material from the former, which accumulates in the form of a disk around the neutron star. The powerful gravitational field of the neutron star will increase the speed at which the material travels towards the neutron star. The same forces cause friction within the disk, and both phenomena will generate a large amount of heat, glowing like a flare in X-ray light.
The researchers found the signatures emitted by these pairs beyond the borders of their host galaxies. Over 16 years of data on the Fornax galaxy was used in the study. The cluster is located at a distance of 60 million light-years away from Earth. The results of the study are quite impressive, and further research is already underway. The study was published in a scientific journal.
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