Astronomers from the University of Texas at Austin have rejected previous findings that the first galaxies had anomalously high mass. The results of their research were published in the journal Astrophysics Journal.
It was previously thought that some galaxies in the early universe had extremely large masses that contradicted the standard model of cosmology. But a new study has shown that these galaxies were actually much less massive than previously thought. It turns out that black holes inside galaxies give a false impression of their mass by increasing their brightness.
The study used data from the CEERS project, which focuses on studying the evolution of the Universe. Scientists suggest that the extra light from these galaxies does not come from stars, but from the friction of gas heated and accelerated in the black hole’s accretion disks. This causes the galaxies to shine brighter, creating the illusion of greater mass.
After excluding black hole galaxies from the analysis, the remaining objects turned out to be very consistent with the predictions of the standard cosmological model. This refutes the idea that the discovery of early galaxies could cast doubt on the theory of the evolution of the Universe.
Earlier scientists named This complicates the search for extraterrestrial intelligence.
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Source: Gazeta
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