Artist’s conception illustrating the aftermath of an intermediate-mass black hole tearing apart a passing star, resulting in an accretion disk and narrow relativistic jet (top left). The dotted line indicates our line of sight from Earth. The jet’s off-axis afterglow only became visible once the expanding radio emission (bottom right) had grown wide enough to sweep into our line of sight, causing that emission to brighten dramatically years after the initial event. Credit: NSF/AUI/NSF NRAO/M.Weiss
Chinese astronomers report the detection of a peculiar optical transient event that occurred in the center of a dwarf galaxy. The newly discovered event, designated AT2019ijncn a paper published July 6 in The Astrophysical Journal Letters.
One of the rarest transients Among astronomical tra...
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