are primordial black holes real ?

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https://astronomy.com › news › 2019 › 07 › primordial-black-holes

https://astronomy.com › news › 2019 › 07 › primordial-black-holes
What are primordial black holes? | Astronomy.com
Regardless of where or how they’re found, primordial black holes could tell astronomers a lot about the universe we live in. Depending on their mass, they could serve as probes into galaxy…
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https://en.wikipedia.org › wiki › Primordial_black_hole

https://en.wikipedia.org › wiki › Primordial_black_hole
Primordial black hole – Wikipedia
Primordial black holes (also abbreviated as PBH) are hypothetical black holes that formed soon after the Big Bang. Due to the extreme environment of the newly born universe, extremely dense pockets of sub-atomic matter had been tightly packed to the point of gravitational collapse, creating a primordial black hole that bypasses the …

https://astronomy.com › news › 2021 › 05 › have-astrophysicists-finally-discovered-primordial-black-holes

https://astronomy.com › news › 2021 › 05 › have-astrophysicists-finally-discovered-primordial-black-holes
Have astrophysicists finally discovered primordial black holes
19 mai 2021Nobody knows what dark matter is made of, but one theory is that primordial black holes could account for this mass. The new evidence that primordial black holes do exist will help…

https://www.sciencefocus.com › space › primordial-black-holes

https://www.sciencefocus.com › space › primordial-black-holes
Is a primordial black hole lurking in our Solar System? | BBC Science …
8 janv. 2022According to Prof Sohrab Rahvar, an astrophysicist and cosmologist from Sharif University of Technology in Iran, Earth has only been hit by a maximum of four primordial black holes in its entire 4.54-billion-year existence. For one to pass through the Earth during your lifetime is almost impossible.

https://www.nasa.gov › audience › forstudents › 5-8 › features › F_Do_Black_Holes_Really_Exist.html

https://www.nasa.gov › audience › forstudents › 5-8 › features › F_Do_Black_Holes_Really_Exist.html
NASA – Do Black Holes Really Exist?
A black hole has a powerful gravitational field which traps everything that goes near it. Scientists now believe that some galaxies have huge black holes in their centers. These black holes release huge amounts of energy that powers the active events that go on within the galaxy.

https://arxiv.org › abs › 2211.05767

https://arxiv.org › abs › 2211.05767
[2211.05767] Primordial Black Holes
10 nov. 2022Primordial Black Holes. We review aspects of primordial black holes, i.e. black holes formed in the early Universe. Special emphasis is put on their formation, their r {ô}le as dark matter candidates and their manifold signatures, particularly through gravitational waves.

https://arxiv.org › abs › 2103.12087

https://arxiv.org › abs › 2103.12087
A brief review on primordial black holes as dark matter
22 mars 2021Primordial black holes (PBHs) represent a natural candidate for one of the components of the dark matter (DM) in the Universe. In this review, we shall discuss the basics of their formation, abundance and signatures. Some of their characteristic signals are examined, such as the emission of particles due to Hawking evaporation and the accretion of the surrounding matter, effects which could …

https://www.nasa.gov › feature › goddard › 2016 › nasa-scientist-suggests-possible-link-between-primordial-black-holes-and-dark-matter

https://www.nasa.gov › feature › goddard › 2016 › nasa-scientist-suggests-possible-link-between-primordial-black-holes-and-dark-matter
Possible Link Between Primordial Black Holes and Dark Matter
The research team concluded that primordial black holes must have been abundant among the earliest stars, making up at least about one out of every five of the sources contributing to the CIB. The nature of dark matter remains one of the most important unresolved issues in astrophysics.

https://www.scientificamerican.com › article › death-by-primordial-black-hole

https://www.scientificamerican.com › article › death-by-primordial-black-hole
Death by Primordial Black Hole – Scientific American
6 juin 2021Primordial black holes (PBHs) could potentially make the dark matter. Various astrophysical constraints rule out PBHs as the dark matter if they have either low or high masses, but allow for…

https://solarsystem.nasa.gov › news › 1068 › 10-questions-you-might-have-about-black-holes

https://solarsystem.nasa.gov › news › 1068 › 10-questions-you-might-have-about-black-holes
10 Questions You Might Have About Black Holes
More mysterious are the giant black holes found at the centers of galaxies — the supermassive black holes, which can weigh millions or billions of times the mass of the Sun. It can take less than a billion years for one to reach a very large size, but it is unknown how long it takes them to form, generally.

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