FRBs: Mystery repeating radio signals discovered emanating from unknown cosmic source

Repeating radio signals coming from a mystery source far beyond the Milky Way have been discovered by scientists. While one-off fast radio bursts (FRBs) have been detected in the past, this is the first time multiple signals have been detected coming from the same place in space.

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This is a second one?

> This is a second one?

Good question. Is this a second one or a re-report of the first one?

The first one is FRB 121102.

It sits in an irregular, low-metallicity dwarf galaxy host.

Have a look at the ellipse in the above images. They are from Hubble, Spitzer, and Gemini. The ellipse is the FRB location. Note that there is what appears to be a jet or “knot of star formation” along the axis of the ellipse, which appears to be the origin.

The real news is that “However, an international team of researchers has now discovered an additional 10 bursts coming from the same direction as FRB 121102, using the Arecibo radio telescope in Puerto Rico.”

Oh wait, this is old news, originally reported 3 Dec 2015. The jounalist mustn’t have had anything new to write about.

Since then is another burst from FRB 121102 which was detected just prior to 5 Sep 2017.