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Feb. 11, 2021 —Scientists were expecting to find an intermediate-mass black hole at the heart of the globular cluster NGC 6397, but instead they found evidence of a concentration of smaller black holes lurking ...
July 5, 2021 —Palomar 5 is a unique star cluster. In a new paper, astrophysicists show that distinguishing features of Palomar 5 are likely the result of an oversized black hole population of more than 100 of them ...
Oct. 15, 2020 —In a surprising discovery, astronomers have found a star cluster in the Andromeda Galaxy that contains a record-breaking low amount of metals, calling into question the so-called ...
Oct. 13, 2020 —Astronomers have found that the total number of globular clusters around Dragonfly 44 and, therefore, the dark matter content, is much less than earlier findings had suggested, which shows that this ...
Jan. 11, 2022 —Using observations of Centaurus A, a nearby elliptical galaxy, obtained with the Gaia space telescope and ground-based instruments under the PISCeS survey, a team of astronomers presents an ...
Jan. 24, 2022 —At one hundred thousand solar masses, it is smaller than the black holes we have found at the centers of galaxies, but bigger than the black holes that are born when stars explode. This makes it one ...
Nov. 23, 2020 —Galaxies formed by the merging of smaller progenitor galaxies. An international team of astrophysicists has succeeded in reconstructing the merger history of our home galaxy, creating a complete ...
May 11, 2023 —Globular clusters are the most massive and oldest star clusters in the Universe. They can contain up to 1 million of them. The chemical composition of these stars, born at the same time, shows ...
June 8, 2022 —Astronomers have developed a new code to simulate the formation of a cluster of baby stars. Comparison with the well-known real case of the Orion Nebula shows that its off-center bubble of ionized ...
Sep. 29, 2022 —Using the James Webb Space Telescope (JWST), researchers have identified the most distant globular clusters ever discovered. These dense groups of millions of stars may be relics that contain the ...