Astronomers first observed these mysterious circles in 2019.
While research is still ongoing, the astronomers say that such imagery will eventually allow them to narrow down how these radio structures are formed, and to better fit in ORC evolution with theThe original discovery of ORC1 from ASKAP data, and a follow-up observation of ORC1 with the MeerKAT radio telescope.
At present, there are three theories as to how ORCs form. One is they could represent a gigantic explosion in the middle of their host galaxy, on the scale of twoOther possibilities include ORCs being jets of energetic particles emanating from the galaxy's center, or a starburst"termination shock" produced as stars are formed.
An overhead view of South Africa's MeerKAT radio-telescope array while it was under construction. The 64-dish network was inaugurated in July 2018.
France Dernières Nouvelles, France Actualités
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