Out of this world: Scientists discover 300,000 new galaxies
Using the LOFAR radio telescope, astronomers have discovered hundreds of thousands of previously undetected galaxies. Scientists hope the find will allow them to learn more about black holes and how galaxy clusters form.
Red flickers
This montage shows several galaxies from the HETDEX region. More than 200 scientists from 18 countries discovered hundreds of thousands of galaxies that no human has ever seen before. The astronomers created the new map of the northern sky with the radio telescope network LOFAR (Low Frequency Array).
Fluorescent wings
The different colors in the radio source B3 0157+406 indicate the presence of large-scale turbulences in the source's magnetic field. Less scientific observers might see faces in the wing-shaped structures.
Spiral galaxy
This brightly colored tail belongs to spiral galaxy M106. Researchers believe the flame-looking structures are the result of activity from the galaxy's central supermassive black hole. "With LOFAR, we want to find out which influence black holes have on the galaxies in which they are located," said Marcus Brüggen, an astrophysicist at the University of Hamburg.
The 'Whirlpool Galaxy'
No, we did not make this nickname up! M51 is known as the "Whirlpool Galaxy" among LOFAR-astronomers, and it's not hard to see why. It's between 15 and 35 million light-years away from Earth and has a supermassive black hole at its center as well.
The all-seeing red eye
This merging galaxy cluster goes by the snappy name of CIZA J2242.8+5301. Among astronomers it's known for its northern arch, dubbed the "Sausage." Researchers hope the new LOFAR data will also give them more information on how galaxy clusters evolve.
Explosions in space
What you see here are supernova explosions in the spiral arms of galaxy IC 342. Pretty awesome, right? "This is a new window on the universe," said Cyril Tasse, an astronomer at the Paris Observatory who was involved in the LOFAR project, said about the newly discovered galaxies.
Glimmering stars
Even LOFAR astronomers will use some trickery to arrive at the most beautiful picture sometimes. For this glittering snapshot, they super-imposed LOFAR images of a galaxy on an optical photo of the night sky. We'd say the effort paid off.
'10 million DVDs'
The galaxy cluster Abell 1314 is located at a distance of approximately 460 million light-years away from Earth. LOFAR researchers will have mountains of data to look into from Abell 1314 and the roughly 300,000 other galaxies they have now discovered. "We have to work through the equivalent of 10 million DVDs," Dominik Schwarz from Bielefeld University in Germany said.