Dark dwarfs lurking at the center of our galaxy might hint at the nature of dark matter
- A UK-Hawaii research team introduced dark dwarfs at the Milky Way's center, suggesting they could reveal dark matter's nature.
- Brown dwarfs can trap dark matter, which then annihilates to turn them into dark dwarfs, as the process releases energy and heats these objects.
- Dark dwarfs have about 8% of the Sun’s mass, emit faint light from gravitational contraction, and lack nuclear fusion, according to Sakstein.
- Current observatories like JWST and SKA could detect dark dwarfs via lithium-7 signatures and 21-cm cosmology, testing dark matter models.
- Detection of dark dwarfs would strongly support the WIMP hypothesis and guide future SKA 21-cm cosmology observations to explore dark matter's nature.
12 Articles
12 Articles
Primordial Black Holes Could Have Accelerated Early Star Formation
The search for dark matter requires all of the best models, theories, and ideas we can throw at it. A new paper from Julia Monika Koulen, Stefano Profumo, and Nolan Smyth from the University of California at Santa Cruz (UCSC) tackles the implications of the sizes and abundance of one of the more interesting dark matter candidates - primordial black holes (PBHs).
Stars That Shouldn’t Shine Are Pointing Straight to Dark Matter’s Identity
Deep in the center of our galaxy, scientists believe a strange type of star may be quietly glowing—not from fusion like our Sun, but from the invisible fuel of dark matter. These “dark dwarfs” could act like cosmic detectors, collecting heavy, elusive particles that heat them from the inside. If we find them—and especially if [...]
Facts about our Milky Way galaxy
(WYTV) - Let's go on a galaxy quest… The very center of the Milky Way contains a powerful gravitational force that scientists believe is a black hole, which they have named Sagittarius A. It weighs about four million suns. The Milky Way rotates at a speed of 168 miles per second. So in an hour of Daybreak, we have all moved through space roughly 600,000 miles. If Earth orbited the sun at the same speed that stars orbit the center of the Milky Wa…
Dark Matter Search Could Lead Us to a New Kind of Star
Dark dwarfs could be lurking out in the cosmos, according to a new study. These hypothetical, effectively eternal bodies would be powered by dark matter annihilation, and though dim, there is a way we could spot them. Dark matter is expected to pervade the Universe, but being… well, dark, it's hard to find. It doesn't reflect or emit light – its existence is only inferred through its interactions with regular matter via gravity. No direct eviden…
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- 86% of the sources are Center
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