primordial black holes

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primordial black holes

[prī′mȯrd·ē·əl ′blak ′hōlz]
(astronomy)
Hypothetical black holes which may have formed in the early, highly compressed stages of the universe immediately following the big bang.
References in periodicals archive ?
So, here's what happens: A neutron star meets up with a small primordial black hole, at least a hundred million times lighter than the sun.
Previous research had ruled out primordial black hole dark matter for all but a narrow range of masses.
28] [Astro-Ph/9911309] The Last Eight Minutes of a Primordial Black Hole (http://arxiv.
Postdoctoral researchers Shravan Hanasoge of Princeton's Department of Geosciences and Michael Kesden of NYU's Centre for Cosmology and Particle Physics simulated the visible result of a primordial black hole passing through a star.
The research suggests that when a primordial black hole comes across a neutron star, the interaction could lead to interesting galactic phenomenon.
In general a spherically symmetric matter distribution may have a static solution which is a linear combination of the inhomogeneous matter induced solution in (11) and the square of the homogeneous primordial black hole solution in (16), as (10) is linear in v[(r).
BH] = [alpha]M/2, as confirmed by the observational datas [2, 4, 5, 6, 7], to primordial supermassive black holes as seen in spiral galaxies as described by (9); here the matter spiral is caused by matter in-falling towards the primordial black hole.
We now consider the situation in which matter in-falls around an existing primordial black hole.
Medium-sized black holes range from tens to hundreds of thousands of solar masses and are thought to form in the early universe as supernova remnants or as descendants of primordial black holes.
As a scientist, Hawking dived into the two most fascinating fields of astrophysics -- the origin of the universe, and black holes; sometimes he even combined the two, as when he inferred the existence of primordial black holes from the early times of the universe, tiny objects that would evaporate and ultimately release huge amounts of energy.
However, that model would begin to be grossly insufficient if we were to discover primordial black holes - hypothetical gravity wells that existed before the first stars formed.
Occasionally, some primordial black holes will pass close enough to be gravitationally captured into binary systems.