Paul H. Wrote:
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> New Class of Radio-Astronomical Objects
> Discovered: Odd Radio Circles
Or ORCs, as they were promptly christened.
(No mention of elves or hobbits, though ... )
On a more serious note:
Quote
The edge-brightening in some ORCs suggests that this circular image may represent a spherical object, which in turn suggests a spherical wave from some transient event.
“Several such classes of transient events, capable of producing a spherical shock wave, have recently been discovered, such as fast radio bursts, gamma-ray bursts, and neutron star mergers. However, because of the large angular size of the ORCs, any such transients would have taken place in the distant past.
Fascinating ...
Hermione
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