Everybody knows that the space is empty, but it is actually filled with a lot of mysteries. The space between the galaxies – the intergalactic space – is sparsely populated, but completely empty. There can be found some lonely stars in this never ending space.
What Has Been Observed?
For the first time, astronomers think they have found evidence of death on one of these solitary stars. Close to the Large Magellanic Cloud, a satellite galaxy orbiting the Milky Way, mysterious and extremely clean radio waves were found hanging in space, and are called J0624-6948.
If this sounds familiar, there is a reason for it. Recently, astronomers have been fascinated by a host of mysterious, circular, orbiting radio circles, or ORCs.
The similarity was not hidden from astronomer Miroslav Filipovic of the University of Western Sydney in Australia.
“When we found this radio signal almost circular, we thought it was another ORC,” he said. “But after our further observation, it became clear that this thing could be something else.”
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What Are These ORCs?
ORCs were first detected using the Australian Square Kilometer Array Pathfinder (ASKAP) in Australia, one of the world’s most powerful radio telescopes. These objects seemed large and distant, with many descriptive features, at least a galaxy in a dead center.
Scientists now think that ORC is the result of a powerful process in those galaxies, although the nature of that process is unknown.
In fact, the ORCs may actually be round. The reason they look like rings is an idea; In the end, the density of the extracts is high on our line of sight.
What Is This Ring?
However, there are significant differences between J0624-6948 and ORC. The lack of a clear galaxy medium in J0624-6948 is great, but it is not certain in itself. The spectral index of radio output is much lower than that of ORCs, and J0624–6948 has a clear size difference, and that is much larger than other ORCs.
Filipovic and his team have considered several possibilities that could lead to something similar to their vision. This includes a very large ORC, as well as a super-flare from a star near the galactic center, or jets from an active black hole.
“A plausible explanation is that this is a remnant of a supernova in the sky caused by an exploding star that lived on the edge of the Large Magellanic Cloud that experienced a single collapse of the Ia supernova that involved the explosion of two orbiting stars. That’s right, ”explained Filipovic.
“What we may find is a unique supernova that has grown into an unusual galaxy – a place we never expected to find in such a thing. Our estimate points to some 2,200 to 7,100 years. ”
Although the remains of the supernova are not so beautiful circles, this would not be a surprise. Other similar examples have been documented, such as the amazing SN 1987A-shaped object on the Large Magellanic Cloud.
If scientists are right, J0624-6948 will be the first surviving supernova reef – a ball-shaped ejecta that stretches outward. According to group estimates, merging with the Large Magellanic Cloud will make J0624-6948 about 155 light years.
Follow-up comments can help resolve uncertainty. Additionally, monitoring of instruments such as ASKAP and its South African counterpart MeerKAT could help identify specific radio circles in the sky.
Finding more will give us a complete picture of their scope and diversity, giving us a better chance of discovering what they are.
“These new radio telescopes can pick up a range of circular objects,” said Filipovic. “Because of the combined effects of high sensitivity, good location samples and a wide area coverage, it enhances our understanding of the universe.”
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