All articles tagged with #cosmological simulations
Researchers used advanced cosmological simulations to study the early universe, revealing that runaway black hole mergers within dense star clusters may have played a crucial role in forming supermassive black holes, with the simulations showing rapid star formation and cluster merging in the galaxy's nucleus.
A new study using advanced simulations suggests that the mysterious gamma-ray glow at the center of the Milky Way could be explained by the distribution of dark matter shaped by the galaxy's early mergers, reigniting the debate over dark matter's role in this cosmic phenomenon.
Primordial black holes formed shortly after the Big Bang may have rapidly grown into supermassive black holes, potentially explaining their early appearance in the universe, as suggested by recent cosmological simulations and observations from the James Webb Space Telescope.
Recent cosmological simulations suggest that primordial black holes formed shortly after the Big Bang could have rapidly grown into supermassive black holes, potentially explaining the presence of such massive objects in the early universe, as observed by the James Webb Space Telescope. This theory offers an alternative to traditional growth models, proposing that primordial black holes, which do not rely on star collapse, could have had a head start in accumulating mass and settling at galactic centers.
An international research team has discovered Nube, an almost invisible dwarf galaxy with extreme characteristics challenging the dark matter model. Nube's diffuse appearance and specific properties make it 10 times fainter and more extended than other galaxies of its type, posing a challenge to current cosmological models. The galaxy's unusual properties may indicate the presence of dark matter particles with extremely small mass, potentially unifying quantum physics with galactic scale phenomena. Further observations and research are needed to understand this enigmatic galaxy and its implications for our understanding of the universe.
Astrophysicists have discovered why spiral galaxies, like the Milky Way, are largely absent from the Supergalactic Plane. The dense galaxy clusters in this region lead to frequent interactions and mergers, transforming spiral galaxies into elliptical galaxies. In contrast, galaxies outside the Plane can evolve in relative isolation, preserving their spiral structure. The findings, based on supercomputer simulations, provide insights into the distribution and evolution of galaxies in our local universe.
A team of researchers from Germany, the US, and the UK have completed a cosmological simulation called "MillenniumTNG" that traces the formation and distribution of galaxies in the Universe. The simulation includes various aspects of cosmic evolution, such as regular matter, dark matter, neutrinos, and dark energy. By simulating the Universe, cosmologists hope to gain a better understanding of the Standard Cosmological Model and the mysteries of dark matter and dark energy. The simulations also provide insights into galaxy evolution and intrinsic galaxy alignments. The simulations are a valuable tool for studying the origin and evolution of the Universe.
Using cosmological simulations, an international team predicts that there may be up to 12 ultra-diffuse galaxies in the Local Group, a small cluster that currently contains approximately 60 known galaxies, including the Milky Way and Andromeda. Ultra-diffuse galaxies are faint and difficult to observe, but understanding their total number in the Local Group is crucial to our understanding of the cosmos. The discovery of these new galaxies could have far-reaching implications for our understanding of galaxy formation and evolution.