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Há 1 dia · In fact, they would have contained the maximum amount of any type of charge allowed for a black hole, according to the fundamental laws of physics. Whereas such “extremal” black holes have been hypothesized for decades, until now no one had discovered a realistic process by which such oddities actually could have formed in our universe.
Há 1 dia · Massachusetts Institute of Technology. "Exotic black holes could be a byproduct of dark matter." ScienceDaily. ScienceDaily, 6 June 2024. <www.sciencedaily.com / releases / 2024 / 06 ...
Há 2 dias · Vol. 109, Iss. 12 — 15 June 2024. Reuse & Permissions. 1 − ( a χ ˙) 2. 1 2. Domain walls (DWs) are topological defects originating from phase transitions in the early Universe. In the presence of an energy imbalance between distinct vacua, enclosed DW cavities shrink until the entire network disappears. By studying the dynamics of thin ...
Há 4 dias · Stephen Hawking suggested black holes "leak " and evaporate away — scientists could use "morsels" launched from catastrophic black hole collisions to prove it.
Há 3 dias · Black hole, cosmic body of extremely intense gravity from which nothing, not even light, can escape. It can be formed by the death of a massive star wherein its core gravitationally collapses inward upon itself, compressing to a point of zero volume and infinite density called the singularity.
- The Editors of Encyclopaedia Britannica
- A black hole is a cosmic body of extremely intense gravity from which even light cannot escape. Black holes usually cannot be observed directly, bu...
- The singularity constitutes the center of a black hole, hidden by the object’s “surface,” the event horizon. Inside the event horizon, the escape v...
- A black hole can be formed by the death of a massive star. At the end of a massive star's life, the core becomes unstable and collapses in upon its...
- One example of a black hole is can be found in Cygnus X-1, a binary X-ray system consisting of a blue supergiant and an invisible companion 14.8 ti...
Há 2 dias · Current observations show that a significant fraction of the Universe is composed of dark energy and dark matter. In this paper, we investigate the simultaneous effects of these dark sectors on the Euler-Heisenberg black hole, using the quintessence matter field and perfect fluid to model them. In particular, we study the black hole's thermodynamics, shadows, and quasinormal modes, and discuss ...
Há 3 dias · Death of a Star Reveals Midsize Black Hole Lurking in a Dwarf Galaxy; Friday, November 4, 2022. Astronomers Discover Closest Black Hole to Earth; Thursday, November 3, 2022
