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An international team, led by researchers at MIT's Haystack Observatory, has for the first time measured the radius of a black hole at the center of a distant galaxy—the closest distance at which matter can approach before being irretrievably pulled into the black hole. The scientists linked together radio dishes in Hawaii, Arizona and California to create a telescope array called the "Event Horizon Telescope" (EHT) that can see details 2,000 times finer than what's visible to the Hubble Space Telescope. These radio dishes were trained on M87, a galaxy some 50 million light years from the Milky Way. M87 harbors a black hole 6 billion times more massive than our sun; using this array, the team observed the glow of matter near the edge of this black hole—a region known as the "event horizon."
The team used a technique called Very Long Baseline Interferometry, or VLBI, which links data from radio dishes located thousands of miles apart. Signals from the various dishes, taken together, create a "virtual telescope" with the resolving power of a single telescope as big as the space between the disparate dishes. The technique enables scientists to view extremely precise details in faraway galaxies.
Jets at the edge of a black hole.
Supermassive black holes are the most extreme objects predicted by Albert Einstein's theory of gravity—where, according to Doeleman, "gravity completely goes haywire and crushes an enormous mass into an incredibly close space." At the edge of a black hole, the gravitational force is so strong that it pulls in everything from its surroundings. However, not everything can cross the event horizon to squeeze into a black hole. The result is a "cosmic traffic jam" in which gas and dust build up, creating a flat pancake of matter known as an accretion disk. This disk of matter orbits the black hole at nearly the speed of light, feeding the black hole a steady diet of superheated material. Over time, this disk can cause the black hole to spin in the same direction as the orbiting material.
Testing General Relativity.
A jet's trajectory may help scientists understand the dynamics of black holes in the region where their gravity is the dominant force. Doeleman says such an extreme environment is perfect for confirming Einstein's theory of general relativity—today's definitive description of gravitation. "Einstein's theories have been verified in low-gravitational field cases, like on Earth or in the solar system," Doeleman says. "But they have not been verified precisely in the only place in the universe where Einstein's theories might break down—which is right at the edge of a black hole."
Originally posted by ubeenhad
reply to post by XPLodER
I mentioned in another thread that with the limits of experimental particle physics approaching, extreme-gravity astrophysical observations are going to be the future of fundamental physics.
"think about a second big bang as the creation of a black hole from the interior. On the outside of the horizon there is our universe, full of matter and energy. In our universe stuff slowly goes into the black hole seemingly not moving at all but to the inflow material time is running normal, so it seems like stuff is falling in before and after you but from the outside the flow looks frozen. Well if we fast forward in the inflows reference frame, and our point of reference is around some of the first material to fall in, we could imagine seeing a new portion of space time being created. this first "bubble" would be the quark-gluon plasma, So were does the inflation come from? Some critical density reached when enough material as fallen through causes the explosion of inflation at a couple miliseconds into the life of the universe, or in this case, a new region of space time, that will continue to grow and make black holes were energy and matter fall into creating new regions of space time. Because of the difference in time, conservation of energy is still maintained over the entire system because its all from the same "bank", just spread out over "time zones"
The difference in time dialation between outside material and inflow material compared to the rate of expansion of the early quark gluon universe before the secondary inflation it could be used to find the "critical density" that would be needed to cause inflation and that could give us testable predictions.
I dont know why similar thought isnt taken more seriously. maybe because the recent developments in particle physics has made people shy away from gravity, un quantized, and theories like these have no experimental basis. which is fine for most quantum theories of gravity cause there is enough math that goes together to make you suspicious. But things like this have less to explain by and are more intuitive conceptual stuff. I think this is why string theory and loop quantum gravity have support, cause they found little mathmatical curiosities. Well what about the conceptual curiosities. I cant get over the correlation with creating new regions of space/time. Thats one thing every big bang supporter must agree on, that it created new regions of space. Well what is the only other known object in the universe shares the same traits. BLACK HOLES. So as a black hole eats, the unstoppable force of gravity keeps pulling more and more energy into the black hole. Some property of space under these conditions only allow for certain "critical density". Once that is reached, BANG, space expands and the black hole is cut off. Now back in the original universe time is going by as normal and matter slowly goes into the black hole. Because of such a drastic difference in time frames it seems mathmatically possible to never loose the conservation of energy over the entire system, even with an infinite amount of "total time"."
Originally posted by XPLodER
IMHO it is the vibrations of the components within the quark/gluon plasma, and the induced energy from this vibration in the density that allows the interactions between these parts,
field, space inhabited
conductor, quark gluon integration of spin/motion with energy equalisation
time being relative to the scale of the observed and the observer
cern has been producing quark gluon plasma for a while now and the data sets are increasing in size, at the speeds being approached i suspect a critical density will be just out of reach at the speeds close to the speed of light. this comes about because of time dialation.
black holes consume energy in a equatorial toroid shape and is sporadic depending on a number of factors,
i believe the difference in consumption of energy and the creation of energy leads to the shape of our galaxy
Im confused. Are you just giving your view on the characteristics of a QGP or are you disagreeing with something?
To experimentally test, obviously. Im talking about using the different inflation models to find a correlation between the inflation rate of a black hole from the interior of the horizon, and the universe.
Some property of space allows inflation, correct me if im wrong we can describe it but not give a mechanism to it.
Irrelevant. Not every new area of spacetime would have to reach inflation. Not every new area of spacetime has to have the same amount of "stuff"
Active galactiv nucluei fueling the expansion of the universe, doing other things stuff. Is that what you mean by shaping and what not.
Are you talking about the ideas put forth by the guy who claimed quasars were much closer and their redshift was due to something else, I cant remember the details. It was falsified by other types of measurements I believe.