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Illustration of a large -scale structure of the universe, showing galaxy’s clusters and supercocrators connected to long threads. | Credit: Mark Garlick/Science Photo Libary/Getty Images
The universe is soaked in weak but overwhelming magnetic fields. Despite decades of research, astronomers are still not absolutely sure where these magnetic fields came from. However, new studies show that they have almost certainly emerged in the deep history of space.
We see magnetic fields wherever we look. Sometimes the magnetic fields are quite weak, as are those who point their way through the spiral hands of galaxies. Sometimes they are moderate as the earth. At other times, they are extremely strong, as are the ones that are fed by magnetarians.
Many of these magnetic fields have a likely history of origin. For example, combined with molten iron and nickel dynamic inside the ground creates a field of our planet. But this is not the case with the largest space structures. Those structures are galaxy clusters with a thousand or more galaxies, and threads, which tens of millions of light-year-long magnetic fields that rotate and wind over their huge volume.
These magnetic fields are incredibly weak – a billion times weaker than the Earth’s magnetic field. However, what they lack strength, they compensate for the size of the magnetic field of the magnetic field can stretch tens of thousands of light-years, completely uninterrupted.
So how can the universe create such giant magnetic fields? One option is that they are born in a very early universe, probably due to a certain exotic mechanism when the space was only a few seconds. Another idea is that they are created by extreme astrophysical objects, such as the environment around the supermassive black holes, and they are quickly inflated into enormous proportions.
The discussions of these two origin stories have been raging in the astronomical community for many years. The Italian -based researchers’ pair accepted the challenge of measuring the giant magnetic fields in the space network and comparing those measurements with observations of modeled magnetic fields to see if these filaments can be used to separate two scenarios of origin. Their work will soon be published in the Universes magazine.
The modeling of a large space network with a supercomputer is based on a standard cosmology model. | Credit: Alejandro Benitez-Llambay/MPa/University Mailland Bicocca
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Threads are long, thin galaxy yarn that lasts tens of millions of light -year -olds connecting clusters, such as the intergalactic highway system. Researchers used several methods to explore and measure the strengths of magnetic fields in the gun. In a single analysis, they looked at the quantity known as a measure of rotation, which is the amount of rotation experienced by the polarized light when it travels through these large magnetic fields. In another analysis, they used the synchrotron emissions, which is radiation emitted by electron because they are spiral along the magnetic field lines.
Compared to their measurements and modeling, it could be assumed that magnetic fields were probably emerging in the early universe. This is because the magnetic fields were stronger in the early universe than in the modern universe. In addition, the magnetic fields were not weaker, all the more so when the threads were from galaxies. If the galaxies themselves were responsible for generating magnetic fields, the magnetic fields should be stronger next to them. But it wasn’t.
Although the investigation is far from convincing, it shows that the largest magnetic fields of the universe are due to a certain exotic mechanism that has absolutely soaked early spaces. The next step is to set that mechanism.