An artist’s impression of a galaxy within which lies a supermassive black hole. The black hole drives enormous outflows of plasma from the galaxy’s core which produce prodigious amounts of radio emission. In this image, the outflows travel toward the upper left and lower right. Credit: ESA/Hubble, L. Calçada (ESO)
With new survey, a team has doubled the number of known young, compact radio galaxies powered by newly energized black holes. The improved tally will help astronomers understand the relationship between the size of these radio sources and their age, as well as the nature of the galaxy itself. In particular, it will help astronomers understand why there are so many more young radio galaxies than old...
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