Using the LOw-Frequency ARray (LOFAR) and MeerKAT telescope, European astronomers have performed radio observations of a galaxy cluster known as Abell 1413. Results of the observational campaign, published August 1 in the ...
Astronomers studying gas halos around nearby galaxies were surprised when detailed studies with the National Science Foundation's Karl G. Jansky Very Large Array (VLA) showed that one of their subjects is not a single galaxy, ...
Astronomy
Nov 14, 2013
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Astronomers have mapped about a million previously undiscovered galaxies beyond the Milky Way, in the most detailed survey of the southern sky ever carried out using radio waves.
Astronomy
Dec 1, 2020
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(PhysOrg.com) -- Astronomers investigating why the cosmic background radiation is much brighter at radio wavelengths than expected have identified a potential culprit: fast spinning black holes early in the galaxy formation ...
Astronomy
Apr 14, 2010
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Giant elliptical galaxies, the oldest known large galactic structures in the universe, have no spiral arms and little or no current star formation activity, but their central supermassive black holes are often active galactic ...
Astronomy
Aug 21, 2020
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Windows to the past, stars can unveil the history of our universe, currently estimated to be 14 billion years old. The farther away the star, the older it is—and the oldest stars are the most difficult to detect. Current ...
Astronomy
Sep 5, 2012
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Black holes—the cosmic behemoths known for powering some of the brightest radio wave sources in the universe—were the focal point of a study led by Associate Professor Michael Brown, from the School of Physics and Astronomy ...
Astronomy
Dec 5, 2023
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An international team of astronomers has performed radio and X-ray observations of radio relics in a merging galaxy cluster known as PSZ2 G096.88+24.18. Results of this monitoring campaign could shed more light on the nature ...
An international team of astronomers has used the world's biggest radio telescope to look deep into the brightest galaxies that NASA's Fermi Gamma-ray Space Telescope can see. The study solidifies the link between an active ...
Astronomy
Apr 22, 2009
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Researchers from the U.S. Naval Observatory and elsewhere have performed simultaneous observations of an active galactic nucleus (AGN) in the galaxy NGC 2992 using the Very Long Baseline Array (VLBA) and NASA's Swift spacecraft. ...
