Meanwhile, atop Mauna Kea in Hawaii, the Subaru telescope was able to begin its observing run, identifying the precise source of the FRB and radio afterglow. As the location of the April 18 FRB was known to a precision of 1,000 times better than previously discovered FRBs, Subaru made the groundbreaking discovery that this FRB originated inside a galaxy 6 billion light-years away.
What is particularly interesting is that, after further observations of this random galaxy, the researcher found it to be an old elliptical galaxy - the kind of galaxy where you wouldn't expect to see much in the way of star formation. This is the first indication that FRBs probably aren't generated by star formation processes.
ANALYSIS: The Glitchy Gamma-Ray Burst
"This is not what we expected," said Simon Johnston, Head of Astrophysics at CSIRO and a member of the research team. "It might mean that the FRB resulted from, say, two neutron stars colliding rather than anything to do with recent star birth."
What's more, this observation was used as a tool to identify how much material the radio emission from the FRB traveled through, eventually reaching Earth 6 billion years later. And for this one event, it seems to exactly match our theoretical models as to the distribution of matter, including dark matter, in the universe.