Примери коришћења Primordial black на Енглеском и њихови преводи на Српски
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Soc 168(1974) 399:links between primordial black holes and the early universe.
If they observe specific small interference patterns within gamma-ray bursts,it could be the first indirect evidence for primordial black holes and string theory.
One way to detect primordial black holes is by their Hawking radiation.
Although most regions of high density would be quickly dispersed by the expansion of the universe, primordial black holes would be stable, persisting to the present.
Another way to detect primordial black holes could be by watching for ripples on the surfaces of stars.
NASA's Fermi Gamma-ray Space Telescope satellite, launched in June 2008,was designed in part to search for such evaporating primordial black holes.
The evaporation of primordial black holes has been suggested as one possible explanation for gamma ray bursts.
And while Hawking radiation has never been directly observed,some scientists believe that certain gamma ray flashes detected in the sky are actually traces of the last moments of small, primordial black holes formed at the dawn of time.
However, since primordial black holes are not formed by stellar core collapse, they may be of any size.
Stephen Hawking theorized in 1974 that large numbers of such smaller primordial black holes might exist in the Milky Way in our galaxy's halo region.
Other problems for which primordial black holes have been suggested as a solution include the dark matter problem, the cosmological domain wall problem and the cosmological monopole problem.
Because of its tiny diameter, large mass compared to a nucleon, andrelatively high speed, such primordial black holes would simply transit Earth virtually unimpeded with only a few impacts on nucleons, exiting the planet with no ill effects.
Since a primordial black hole does not necessarily have to be small(they can have any size), primordial black holes may also have contributed to the later formation of galaxies.
However, if theoretical Hawking radiation does not actually exist, such primordial black holes would be extremely difficult, if not impossible, to detect in space due to their small size and lack of large gravitational influence.
A primordial black hole is a hypothetical type of black hole that is formed not by the gravitational collapse of a star but by the extreme density of matter present during the universe's early expansion.
Even if they do not solve these problems,the low number of primordial black holes(as of 2010, only two intermediate mass black holes were confirmed) aids cosmologists by putting constraints on the spectrum of density fluctuations in the early universe.
Early theories include primordial black holes, colliding neutron stars, and even some idle talk about extraterrestrial civilizations, though aliens are not an explanation that's generally taken seriously.
General relativity predicts the smallest primordial black holes would have evaporated by now, but if there were a fourth spatial dimension- as predicted by string theory- it would affect how gravity acts on small scales and"slow down the evaporation quite substantially".