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Astronomers discover a new extragalactic circular radio source 5nvklj





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Astronomers discover a new extragalactic circular radio source

Dragon
Dragon
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Astronomers discover a new extragalactic circular radio source Empty Astronomers discover a new extragalactic circular radio source

Post by Dragon Tue May 18, 2021 2:53 am

Using the Australian Square Kilometre Array Pathfinder (ASKAP), astronomers have detected a new extragalactic odd radio circle (ORC).

The newfound radio source, designated ORC J0102–2450, has a diameter of nearly 1 million light years.

Odd radio circles (ORCs) are very large mysterious objects that are highly circular and bright along the edges at radio wavelengths.

Although ORCs are bright at radio wavelengths, they cannot be observed at visible, infrared or X-ray wavelengths.

So far, only few objects of this type have been identified, hence very little is known about their origin and nature.


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Astronomers discover a new extragalactic circular radio source 334pu7m
Dragon
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Astronomers discover a new extragalactic circular radio source Empty Re: Astronomers discover a new extragalactic circular radio source

Post by Dragon Tue May 18, 2021 2:55 am

Astronomers discover a new extragalactic circular radio source Astronomers-discover-a

ORC J0102–2450. — ASKAP radio continuum contours overlaid onto an optical RGB color image created from the Dark Energy Survey (DES)

The newly detected ORC has a radio ring diameter of around 70 arcseconds, or 978,000 light years. The source's total radio flux was measured to be some 3.9 mJy, while its total radio luminosity was found to be approximately 140 billion TW/Hz.

The object is most likely associated with the central elliptical galaxy DES J010224.33–245039.5.


Source / Image Courtesy


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Astronomers discover a new extragalactic circular radio source 334pu7m
Dragon
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Astronomers discover a new extragalactic circular radio source Empty Re: Astronomers discover a new extragalactic circular radio source

Post by Dragon Tue May 18, 2021 2:57 am



Astronomers have concluded that they aren't like anything they have seen before.

So they must consider things that might exist in space but haven't been observed to date.

Some scientists have even suggested ORCs might be the "throats" of wormholes in spacetime.

It is now suspected that there are nearly a thousand such strange objects in the sky.


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