Robert Lea is a science journalist in the U.K. whose articles have been published in Physics World, New Scientist, Astronomy Magazine, All About Space, Newsweek and ZME Science. He also writes about science communication for Elsevier and the European Journal of Physics. Rob holds a bachelor of science degree in physics and astronomy from the U.K.
Jam packed issues filled with the latest cutting-edge research, technology and theories delivered in an entertaining and visually stunning way, aiming to educate and inspire readers of all agesAstronomers have used the wide-field view of the Dark Energy Camera to confirm that supermassive-black-hole-powered quasars in the early universe were packed into dense neighborhoods. However, it seems these cosmic beasts weren't exactly the best neighbors.
The necessarily high rate of feeding has led many astronomers to propose that quasars must sit in some of the. This is a signature of a form of hydrogen that has had its electrons stripped by high temperatures. Electrons and hydrogen nuclei then recombine, with the previously ionized hydrogen atoms grabbing back some electrons.
Doing this for quasar VIK J2348-3054, the team found 38 companion galaxies, out as far as 60 million light-years, indicating a dense region of space. To the surprise of Lambert and colleagues, they also found a complete absence of companion galaxies within a distance of 15 million light-years of the quasar.
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