An irregular radio circle or Odr (odd radio circle), a circular shape formed by radio waves and larger than our own galaxy, has recently been discovered. Using data collected by the powerful Meerkat radio telescope in South Africa, the film was created with unprecedented detail by research coordinated by Jordan Collier of the Australian University of Sydney. The results are published in the monthly issues of the Royal Astronomical Society.
“Odd radio circles (Odr) or ‘anomalous radio circles’ are recently discovered objects due to large studies capable of observing very large parts of the sky,” Tiziana Venturi of the National Astronomical Union (INAF) told ANSA. Director of the Radio Astronomical Institute.
Larger than galaxies and visible only on the radio wave frequency, new objects are defined as unusual (odd in English) because they represent an interesting comedy puzzle. “Its origins are not well understood,” Venturi noted. “In recent years – he added – we have learned to exclude some possibilities, for example they are the remains of supernovae.
According to the study, there are three possible hypotheses: Odr is the remnant of large eruptions at the center of a galaxy, for example, the fusion of the largest black holes; It is the result of a kind of shock wave created by jet or star production events of energetic particles emitted from the center of the galaxy. “The basic idea of all these hypotheses – specified venturi – is that they are in any case the result of the largest eruption occurring at the center of a galaxy.”
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