All articles tagged with #galactic center
Recent research suggests that advanced civilizations could reside near the galactic core, utilizing black holes for time dilation to expand their lifespan and exploration capabilities, which may explain why we haven't detected them and offers new avenues for SETI efforts.
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.
New simulations suggest dark matter near the Milky Way's center is flattened, potentially explaining the mysterious gamma-ray glow observed by the Fermi telescope, challenging previous spherical models and opening new avenues for understanding dark matter's nature.
A mysterious gamma-ray glow at the Milky Way's center could be evidence of dark matter particles annihilating each other, with simulations suggesting the shape of the glow is consistent with dark matter rather than pulsars, though both remain plausible explanations. Future observatories may help clarify the source.
New research shows that stars passing close to the Milky Way's supermassive black hole can survive, become brighter, and undergo chemical changes, providing insights into black hole feeding habits and possibly explaining mysterious G objects at the galaxy's core.
Astronomers discovered a massive, previously unknown molecular cloud in the Milky Way, called the Midpoint cloud, which acts as a conduit for gas flowing into the galaxy's core, potentially fueling star formation and revealing new insights into galactic dynamics and life cycles.
The Hubble Space Telescope captured images of the interstellar object 3I/ATLAS, a fast-moving comet from outside our solar system, which is headed towards the Sun and may have originated from the galactic center, offering scientists a rare opportunity to study an ancient cosmic visitor.
Astronomers discovered the Midpoint cloud, a massive 200-light-year-wide gas and dust structure in the Milky Way, which may be feeding material into the galaxy's center and revealing new insights into star formation and galactic dynamics.
Astronomers have discovered a massive 200-light-year-wide gas and dust cloud in the Milky Way, called the Midpoint cloud, which may be feeding material into the galaxy's center and fostering star formation, providing new insights into galactic dynamics.
Astronomers have discovered a massive, previously unknown molecular cloud in the Milky Way, called the Midpoint cloud, which is fueling star formation and providing insights into the galaxy's gas dynamics and evolution.
Scientists hypothesize that dark matter annihilations at the galactic center could create a 'dark main sequence' of stars, potentially making some stars appear younger, more massive, or even immortal, due to additional energy from dark matter interactions, which could explain some unusual observations of stars near the Milky Way's black hole.
Researchers propose the existence of dark dwarfs—low-mass objects at the galaxy's center powered by dark matter interactions—as potential clues to the nature of dark matter, particularly supporting the hypothesis that dark matter consists of heavy, self-interacting particles like WIMPs. Detection methods include observing lithium-7 signatures with telescopes like James Webb, which could provide strong evidence for the properties of dark matter.
The best time to view the Milky Way's core, located near Sagittarius and Scorpius, is in June when it becomes visible after dark, especially from the Southern Hemisphere or lower northern latitudes, away from light pollution, with optimal viewing around the solstice. Using a tripod and long exposure can enhance the experience.
Scientists have proposed a new class of stars near the Milky Way's center that could be powered by dark matter annihilation, making them essentially immortal by preventing gravitational collapse. This discovery could explain the unusual properties of stars in this region and place them in a new category on the Hertzsprung-Russell diagram.
New evidence suggests that stars in the Milky Way's galactic center appear much younger than they actually are due to cosmic cannibalism, where collisions and mergers allow some stars to collect more hydrogen and masquerade as rejuvenated, young-looking stars. The study, based on simulations, found that interactions between stars near the supermassive black hole result in grazing collisions, while those further away lead to violent mergers creating larger, short-lived stars. This process explains the absence of old red giant stars in the galactic center and sheds light on the complex dynamics of this unique cosmic environment.