The phrase
"early universe" refers to the period of time right after the Big Bang when the universe began to form. It represents the very beginning of our universe, with stars, galaxies, and other cosmic structures starting to take shape.
Full definition
Life couldn't have survived in the
very early universe before stars formed, so the universe had to have reached a certain age and stage of evolution before life could arise.
Only a handful of galaxies currently have accurate distances measured in this
very early universe.
«We study supermassive black holes in the very
early universe when they are actively growing by accreting massive amounts of gaseous material,» says Wright.
If confirmed, the detection would have suggested that the very
early universe underwent a massively fast expansion, known as inflation, and perhaps even hinted at the existence of a multiverse.
The discovery of this ultraluminous quasar also presents a major puzzle to the theory of black hole growth
at early universe, according to Xiaohui Fan, Regents» Professor of Astronomy at the UA's Steward Observatory, who co-authored the study.
The MOIRCS near - infrared spectrograph is very effective for studies focused on the distant,
early universe because strong emission lines from star - forming galaxies are redshifted from the optical to the near - infrared regime.
«But it's been hypothesized that there could be black holes that formed in the very
early universe before stars existed at all.
«Numerical simulations shed new light
on early universe: BURST code probes first minutes after the Big Bang for fundamental insights.»
Unlike run - of - the - mill black holes that form from collapsing stars, such primordial black holes could have formed when dense regions of the very
early universe collapsed under their own gravity, some theories suggest.
Rapid switch between neutrino flavours could herald experiments to
explore early universe's preference for matter
Like the Higgs boson, the theory of an
inflating early universe has many daddies — partly because it draws on disparate ideas in physics and cosmology
When he examined galaxies in the
distant early universe, astronomer Roberto Abraham of the University of Toronto found they were far more mature than expected.
In the
densest early universe structures, many galaxies already have old stellar populations, implying that these galaxies formed first and accumulated the greatest masses in a bottom - up assembly process where smaller galaxies merge to make bigger galaxies - like tributaries converging to form a large river.
«Radiation from nearby galaxies helped fuel first monster black holes: Modeling supports one view of massive black - hole creation
in early universe.»
«With several next - generation, even - more - sensitive facilities currently being built, we can expect many exciting discoveries in the
very early universe in the coming years.»
She likens
the early universe to a «distant symphony that all comes together as one sound,» while colliding black holes «dominate anything the early universe will have produced.»
I can't claim to be providing certainly accurate information on this, since it's been a while since I've done relevant physics reading (lay books, not academic), but in
the early universe (before inflation went out of control) there were irregularities that gave rise to clumping, from which the first stars and galaxies originated.
It condensed out of the very hot,
early universe.
Absolutely nothing about the study of cosmology of
the early universe and big bang would lead to the conclusion that it somehow required action or planning.
This latest evidence for «inflation» supports the expansion of space in
the early universe at a rate much faster than the speed of light.
Without this brief period of nucleosynthesis,
the early universe would have consisted entirely of hydrogen.
«Take one simple example: two hydrogen atoms meet in
the early universe.
4s) then photons erupted from this energy cloud (detectable today as the microwave background radiation) 5s) photons and other particles form the bodies of
the early universe (atoms, molecules, stars, planets, galaxies) 6s) it rained on the early earth until it was cool enough for oceans to form 7s) the first life form was blue green bacteria.
The early universe was way too hot and way too dense for visible light to exist.
There is evidence for Big Bang cosmology which explains the rapid expansion at the beginning of
the early universe.
Gravitational waves result from «inflation» of
the early universe, an exponential expansion of space in the first fraction of a second of the Big Bang, 14 billion years ago.
George has a PhD in astrophysics and worked at the University of Cambridge researching the effects of black holes in galaxies and quasars in
the early universe.
The existence of supermassive black holes in
the early universe has never made much sense to astronomers.
Astronomers suspect galaxies began as accumulations of dark matter in
the early universe that acted as seedbeds for normal matter.
Surpassing that rate is theoretically possible under special circumstances in dense, gas - rich environments, and these conditions may have been available in
the early universe, but they would not have been common, and they would have been short - lived.
The observatory will also measure patterns in the distribution of galaxies left by acoustic waves in
the early universe.
We could predict precisely how much dark matter would be left over from
the early universe and compare it with the amount we measure today.
Thus, the idea of very large initial seeds appears feasible in
the early universe.
And putting together a census of binary supermassive black holes from
the early universe, he adds, might help researchers understand what role (if any) these dark duos had in shaping galaxies during the billion or so years following the Big Bang.