Little by little, specialists in reviewing what happens in outer space, like astronomers, are visualizing phenomena that are usually unexplained and that baffle even the most thoughtful minds. In Spain we have already seen some from thousands of light years away. Now these astronomers have discovered up to four new objects that are unique in their composition.
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According to him paper titled: Unexpected Circular Radio Objects at High Galactic Latitude, astronomers have discovered 4 phenomena called radius circles or ORC (Odd Radius Circle) as they have a ring-like shape with a shiny appearance along their edges. They are unlike anything astronomers have seen before and it is not known exactly how far away these ORCs are from us.
All these objects have been found, as detailed LiveScience, far from the galactic plane of the Milky Way. In fact, it is estimated that these ORCs could be, at least, linked or closely close to galaxies far from ours, so we are talking about very considerable distances.
glowing radio rings
These four ORCs are very bright in radio wavelengths, but completely invisible in visible light, X-rays, and infrared. Two of them have galaxies in its center that can be glimpsed in visible wavelengths, so it is estimated that two of these could be formed by their respective galaxies. The other two They seem to be very close indicative that they could have originated at the same time.
It all happened while the astronomers responsible for the paper they were scanning the night sky with radio frequencies as part of a survey for a project called Evolutionary Map of the Universe or EMUs. They used the ASKAP radio telescope array or Path Finder square kilometer array of Australia, at the Murchinson Radio Astronomy Observatory.
This array makes use of up to 36 different antennas to observe the sky in a wide angle view. Initially found 3 of the objects, and the fourth was found in archival data collected by the MetreWave radio telescope in India. They hope that, with this data, they will be able to reveal similar objects. The paper has been sent to the magazine Nature Astronomy for your review.
The most striking thing is that astronomers do not know exactly what these objects are or their nature. In fact, they have given several explanations, but none fully fit these ORCs. The most accepted theory is that these objects could be shock waves left over from some extragalactic event, although they do not know exactly, pointing out that this could be a completely new phenomenon.
As detailed to LiveScience Kristine Spekkens, an astronomer at the Royal Military College of Canada and Queens University, these objects could point “to a new phenomenon that we have not yet investigated […] It may also be that it is an extension of an already known class of objects that we have not been able to explore.”