[Paleopsych] the birth of galaxies--just another wonder-dance
HowlBloom at aol.com
HowlBloom at aol.com
Fri Jan 21 04:43:26 UTC 2005
The following story hints that galaxies formed in the darkness of the great
gravity wars roughly 400,000 years After the Big Bang (400,000 ABB). These
proto-galaxies, these huge gravitational clumps, were ovoid, spinning, and
would have looked like primitive, potato-shaped galaxies if we’d been able to see
them. But we would not have seen them. They’d have been utterly dark.
Slowly (actually rapidly in cosmic time) gravity balled together the fists of
black holes at these galaxies’ hearts. …until those black holes heart—the
ultimate destroyers—began to birth stars. Thus the great destroyers were also
the great creators. And the competition and pre-biotic carnage of the
gravity crusades led to the empires of circling stars we now see as galaxies.
Howard
Retrieved January 20, 2005, from the World Wide Web
http://www.sciencedaily.com/releases/2005/01/050111090727.htm Source: Lawrence Livermore National
Laboratory Date: 2005-01-20 Print this page Email to friend Good News From Big
Bad Black Holes LIVERMORE, Calif. -- Astronomers have discovered how ominous
black holes can create life in the form of new stars, proving that jet-induced
star formation may have played an important role in the formation of
galaxies in the early universe.
_..\text\black hole spewing stars.jpeg_
(aoldb://mail/write/..\text\black%20hole%20spewing%20stars.jpeg) This false-color image incorporates infrared
data (invisible to the human eye). The blue regions (essentially the whole of
Minkowski’s Object) show enhanced star formation. The red background galaxy
and two red foreground stars appear in sharp contrast. The red overlay is the
radio jet. (Image courtesy of Lawrence Livermore National Laboratory) Related
News Stories Galaxies And Black Holes: You Can't Have One Without The Other
(February 20, 2001) -- Galaxies and black holes are so intimately connected
that it is almost impossible to find one without the other, according to
University of Michigan astronomer Douglas Richstone. ... > full story Which Came
First: Black Hole Or Galaxy? (January 14, 2000) -- U-M astronomer says black
holes formed early and influenced galactic ... > full story Astrophysicists
Discover Massive Forming Galaxies (September 19, 2003) -- A Lawrence
Livermore National Laboratory astrophysicist, in collaboration with international
researchers, has found evidence for the synchronous formation of massive,
luminous elliptical galaxies in ... > full story Black Holes In Distant Galaxies
Point To Wild Youth, Chandra Discovers (June 5, 2002) -- Like 'flower power'
tattoos on aging ex-hippy baby boomers, unexpectedly large numbers of neutron
stars and black holes in elliptical galaxies suggest some of these galaxies
lived through a ... > full story > more related stories Related section:
Space & Time Click Here Using the Very Large Array (VLA) at the National Radio
Astronomy Observatory in New Mexico, the Keck telescopes in Hawaii and the
Hubble Space Telescope, astronomers Wil van Breugel and Steve Croft have shown
that "Minkowski’s Object," a peculiar starburst system in the NGC 541 radio
galaxy, formed when a radio jet – undetectable in visible light but revealed by
radio observations– emitted from a black hole collided with dense gas. The
researchers carried out the observations after computer simulations at
Lawrence Livermore National Laboratory by Chris Fragile, Peter Anninos and Stephen
Murray had shown that jets may trigger the collapse of interstellar clouds
and induce star formation. The astronomers will present their findings today
at the American Astronomical Society 205th national meeting, in San Diego,
Calif. "Some 20 years ago this kind of thinking was thought to be science
fiction," said van Breugel, who along with Croft works at the Laboratory’s
Institute for Geophysics and Planetary Physics. "It brings poetic justice to black
holes because we think of them as sucking things in, but we’ve shown that
when a jet emits from a black hole, it can bring new life by collapsing clouds
and creating new stars." Radio jets are formed when material falls into
massive black holes. Magnetic fields around the black holes accelerate electrons
to almost the speed of light. These electrons are then propelled out in narrow
jets and radiate at radio frequencies because of their motion in the
magnetic fields. The jets may affect the formation of stars when they collide with
dense gas. But only recently have van Breugel and Croft figured out how this
happens. The regions between stars in a galaxy are filled with mainly gas and
dust, and are commonly called the interstellar medium. The gas appears
primarily in two forms as cold clouds of atomic or molecular hydrogen or as hot
ionized hydrogen near young stars. In the case of the recent discovery, the
Livermore researchers observed that when a radio jet ran into a hot dense
hydrogen medium in NGC 541, the medium started to cool down and formed a large
neutral hydrogen cloud and, in turn, triggered star formation. Although the
cloud did not emit visible radiation, it was detected by its radio frequency
emission. "The formation of massive black holes is critical to the formation of
new galaxies," Croft said. Van Breugel, who has been studying black holes
since his days as a postdoctoral fellow more than 20 years ago, said the
recent observations are another good reason to study the relationship between
black holes and early galaxies. He said the conditions his team saw in NGC 541
may be important in understanding the formation of galaxies in the early
universe. "Our observations show that jets from black holes can trigger extra
star formation. In the early universe this process may be important because the
galaxies are still young, with lots of hydrogen gas but few stars, and the
black holes are more active," he said. According to the big bang theory, the
universe is believed to have originated approximately 13.5 billion years ago
from a cosmic explosion that hurled matter in all directions. Although van
Breugel and Croft observed the jets by using the VLA, Keck and Hubbel images,
they also said that the Livermore computer simulations by Fragile, Anninos
and Murray were crucial to verify that this is happening. NGC 541 is
approximately 216 million light years from Earth and is roughly half the size of the
Milky Way. In addition to van Breugel and Croft, other collaborators on the
project include W. de Vries, UC Davis; J. H. van Gorkom, Columbia University;
R. Morganti and T. Osterloo, ASTRON, Netherlands; M. Dopita, Australian
National University; C. Fragile, UC Santa Barbara; and Anninos and Murray, LLNL.
Founded in 1952, Lawrence Livermore National Laboratory is a national security
laboratory, with a mission to ensure national security and apply science and
technology to the important issues of our time. Lawrence Livermore National
Laboratory is managed by the University of California for the U.S. Department
of Energy's National Nuclear Security Administration. Editor's Note: The
original news release can be found here. This story has been adapted from a
news release issued by Lawrence Livermore National Laboratory. Can't find it?
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Howard Bloom
Author of The Lucifer Principle: A Scientific Expedition Into the Forces of
History and Global Brain: The Evolution of Mass Mind From The Big Bang to the
21st Century
Visiting Scholar-Graduate Psychology Department, New York University; Core
Faculty Member, The Graduate Institute
www.howardbloom.net
www.bigbangtango.net
Founder: International Paleopsychology Project; founding board member: Epic
of Evolution Society; founding board member, The Darwin Project; founder: The
Big Bang Tango Media Lab; member: New York Academy of Sciences, American
Association for the Advancement of Science, American Psychological Society,
Academy of Political Science, Human Behavior and Evolution Society, International
Society for Human Ethology; advisory board member: Youthactivism.org;
executive editor -- New Paradigm book series.
For information on The International Paleopsychology Project, see:
www.paleopsych.org
for two chapters from
The Lucifer Principle: A Scientific Expedition Into the Forces of History,
see www.howardbloom.net/lucifer
For information on Global Brain: The Evolution of Mass Mind from the Big
Bang to the 21st Century, see www.howardbloom.net
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