Two teams of astronomers led by researchers at the University of Cambridge have looked back nearly 13 billion years, when the Universe was less than 10 percent its present age, to determine how quasars - extremely luminous ...
Astronomy
Jan 16, 2015
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(Phys.org)—Radio halos are enormous regions of diffuse radio emission, usually found at the centers of galaxy clusters. Recently, an international team of astronomers has discovered such a large area of diffuse emission, ...
Astronomers report the detection of a new Fanaroff-Riley Class II (FRII) radio galaxy using various telescopes.The newly found galaxy turns out to be a peculiar gamma-ray emitting source. The discovery was detailed in a paper ...
Two giant radio galaxies have been discovered with South Africa's powerful MeerKAT telescope. These galaxies are thought to be amongst the largest single objects in the Universe. The discovery has been published today in ...
Astronomy
Jan 18, 2021
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European astronomers report the detection of a new giant radio galaxy (GRG) as part of the LOFAR Two-meter Sky Survey (LoTSS). The newly found object, named Alcyoneus, turns out to be the largest GRG known to date. The finding ...
An international team of astronomers has conducted radio and optical observations of a peculiar giant radio galaxy known as GRG-J223301+131502. Results of the observational campaign shed more light on the properties of this ...
An international team of astronomers has investigated a very high energy (VHE) emission from the radio galaxy Messier 87. Results of the study, published December 16 on arXiv.org, could help us better understand the nature ...
Seyfert galaxies are similar to spiral galaxies except that they have extraordinarily prominent, bright nuclei, sometimes as luminous as 100 billion Suns. Their huge energies are thought to be generated as matter falls towards ...
Astronomy
Jan 19, 2015
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143
(PhysOrg.com) -- Astronomers may have solved a cosmic chicken-and-egg problem -- the question of which formed first in the early Universe -- galaxies or the supermassive black holes seen at their cores.
Astronomy
Jan 6, 2009
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In the 1970s, astronomers became aware of a compact radio source at the center of the Milky Way Galaxy – which they named Sagittarius A. After many decades of observation and mounting evidence, it was theorized that the ...
Astronomy
Nov 9, 2016
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