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First super-massive black holes were born 'soon' after Big

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PostPosted: 26.08.2010 9:18    Post subject: First super-massive black holes were born 'soon' after Big Reply with quote

Iskee silmää Iskee silmää Iskee silmää Hullujen kyykytystalkoot jatkuvat Iskee silmää Iskee silmää Iskee silmää

First super-massive black holes were born 'soon' after Big Bang



vanhat teoriat käännetään päälaelleen.

Juuri tästä malli on kertonut jo monta aikaa.

Eteenpäin menevän liikkeen aikana galaksien keskusten jättimäisten energiatihentymien liikeradat kohtaavat, voimakas vuorovaikutus ja kyseiset energiatihentymät räjähtävät paljon energiaansa toisiaan kohti.

Kyseiset energia-aallot vuorovaikuttavat toistensa kanssa eli vastaan tulevan energia-aallon kanssa ja syntyy paljon uusia tähti jne.

Tähtien energia on peräisin galaksin keskustasta.

Mikään mystinen vetävä voima ei ole vetänyt ainetta galakseihin pikkuhiljaa.

ja tila ei laajene.

Energiatihentymät räjähtävät eli laajenevat eli muuttuvat HAVAITTAVASTI vähemmän tiheäksi energiaksi.

Iskee silmää Iskee silmää Iskee silmää Joko pistämme laajenevaan tilaan uskovat hoitoon ja kunnon lääkitykseen, mitä? Iskee silmää Iskee silmää Iskee silmää

In the image, the panel illustrates the complexity of dynamical evolution in a typical collision between two equal-mass disk galaxies. The simulation follows dark matter, stars, gas, and supermassive black holes, but only the gas component is visualized. Brighter colors indicate regions of higher gas density and the time corresponding to each snapshot is given by the labels. The first 10 panel images measure 100 kpc on a side, roughly five times the diameter of the visible part of the Milky Way galaxy. The next five panels represent successive zooms on the central region. The final frame shows the inner 300 pc of the nuclear region at the end of the simulation. Credit: Ohio State University
Astronomers believe they have discovered the origin of our universe's first super-massive black holes, which formed some 13 billion years ago.
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The discovery fills in a missing chapter of our universe's early history, and could help write the next chapter -- in which scientists better understand how gravity and dark matter formed the universe as we know it.
In the journal Nature, Ohio State University astronomer Stelios Kazantzidis and colleagues describe computer simulations in which they modeled the evolution of galaxies and black holes during the first few billion years after the Big Bang.
Our universe is thought to be 14 billion years old. Other astronomers recently determined that big galaxies formed much earlier in the universe's history than previously thought -- within the first 1 billion years, Kazantzidis explained.
These new computer simulations show that the first-ever super-massive black holes were likely born when those early galaxies collided and merged together.
"Our results add a new milestone to the important realization of how structure forms in the universe," he said.
For more than two decades, the prevailing wisdom among astronomers has been that galaxies evolved hierarchically -- that is, gravity drew small bits of matter together first, and those small bits gradually came together to form larger structures.
Kazantzidis and his team turn that notion on its head.
"Together with these other discoveries, our result shows that big structures -- both galaxies and massive black holes -- build up quickly in the history of the universe," he said. "Amazingly, this is contrary to hierarchical structure formation."
The paradox is resolved once one realizes that dark matter grows hierarchically, but ordinary matter doesn't," he continued. "The normal matter that makes up visible galaxies and super-massive black holes collapses more efficiently, and this was true also when the universe was very young, giving rise to anti-hierarchical formation of galaxies and black holes."
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For Kazantzidis and other astronomers, our Milky Way galaxy is small compared to others.
So when it comes to normal matter, big bits like giant galaxies and super-massive black holes come together quickly, and smaller bits like our own Milky Way galaxy -- and the comparatively small black hole at its center -- form more slowly. The galaxies that formed those first super-massive black holes are still around, Kazantzidis added.
"One of them is likely our neighbor in the Virgo Cluster, the elliptical galaxy M87," he said. "The galaxies we saw in our simulation would be the biggest galaxies known today, about 100 times the size of the Milky Way. M87 fits that description."

On two accompanying videos -- during the interaction, violent tidal forces tear the galactic disks apart, generating spectacular tidal tails, plumes and prominent bridges of material connecting the two galaxies. The ultimate outcome of a series of increasingly close encounters is the inevitable merger of the disk galaxies into a single structure and the formation of a nuclear disk as shown in the last panel. The simulated nuclear disks have masses of approximately a billion solar masses and exhibit prominent non-axisymmetric features known to produce strong gas inflows. The gas inflows are likely responsible for fueling the central black hole, but even higher resolution will be needed to study this process in detail. Nevertheless, the simulations carried out by Kazantzidis and his collaborators provide the first direct evidence that gas originally in galaxies separated by hundreds of kiloparsecs is collected to sub-parsec scales simply as a result of the dynamics and hydrodynamics involved in the merger process. Credit: University of Zürich

They started their simulations with two giant primordial galaxies -- ones made of the kinds of stars that were around at the beginning of the universe. Astronomers believe that back then, all stars would have been much more massive than present-day stars -- up to 300 times the mass of our sun.
Then the astronomers simulated the galaxies colliding and merging together.
The astronomers were able to make their discovery because they used supercomputers to provide a high-resolution view of what happened next.
Previous simulations showed details of the merged galaxy down to only about 300 light-years across. A light-year is the distance that light travels in year, about six trillion miles.
These new simulations contained features that were 100 times smaller, and revealed details in the heart of the merged galaxies on a scale of less than a light year.
The astronomers saw two things happen. First, gas and dust in the center of the galaxies condensed to form a tight nuclear disk. Then the disk became unstable, and the gas and dust contracted again, to form an even denser cloud that eventually spawned a super-massive black hole.
The implications for cosmology are far-reaching, Kazantzidis said.
"For example, the standard idea -- that a galaxy's properties and the mass of its central black hole are related because the two grow in parallel -- will have to be revised. In our model, the black hole grows much faster than the galaxy. So it could be that the black hole is not regulated at all by the growth of the galaxy. It could be that the galaxy is regulated by the growth of the black hole."
He and his cohorts also hope that their work will aid astronomers who are searching the skies for direct evidence of Einstein's theory of general relativity: gravitational waves.
According to general relativity, any ancient galaxy mergers would have created massive gravitational waves -- ripples in the space-time continuum -- the remnants of which should still be visible today.
New gravitational wave detectors, such as NASA's Laser Interferometer Space Antenna, were designed to detect these waves directly, and open a new window into astrophysical and physical phenomena that cannot be studied in other ways.
Scientists will need to know how super-massive black holes formed in the early universe and how they are distributed in space today in order interpret the results of those experiments. The new computer simulations should provide a clue.

Olemmeko löytämässä itse itsemme? Yhdistyvätkö eri uskonnot ja tiede jo meidän aikana?
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Joined: 02 Jan 2007
Posts: 1931

PostPosted: 26.08.2010 9:19    Post subject: Lisää painetta Reply with quote

Kun katsotte videoita, huomioikaa etteivät kyseiset energiatihentymät vedä toisiaan puoleensa. Ne laajenevat kolmiulotteisesti ja niihin kohdistuu ulkoinen jne.

Helppo juttu, kun sen oikein oivaltaa.

Ja tietysti ne varjostavat tilaa, jolloin kyseinen ulkoinen paine ei kohdistu juuri ohittaneeseen laajenevaan energiatihentymään jossa oleva energia muuttuu havaittavasti vähemmän tiheäksi ja hajaantuu jo olemassa olevaan tilaan joka ei laajene.

Ulkoinen paine siis työntää niitä toisiansa kohti.

Ulkoinen paine pysähtyy kyseisiin energiatihentymiin ja ei jatka matkaansa juuri ohittaneseen energiatihentymään, vaan työntää sitä johon osui, kohti juuri ohittanut koko ajan laajenevaa energiatihentymää jne.

Ps. Kyseessä on suora havainto siitä miten energiatihentymien energiaa räjähtä eli laajenee eli muuttuu vähemmän tiheäksi energiaksi.

Itseasiassa kaikki havainnot perustuvat siihen että kaikkien energiatihentymien energiaa hajaantuu jo olemassa olevaan tilaan.

Ja tämähän on FAKTA

Muuten mitään ei tapahtuisi eli ei olisi minkäänlaisia havaintoja mistään.

Twisted Evil Twisted Evil
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