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New technique for 'weighing' black holes
05-16-2007 · European Space Agency (ESA)ESA's XMM-Newton has helped to find evidence for the existence of controversial Intermediate Mass Black Holes. Scientists used a new, recently proven method for determining the mass of black holes.
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Keywords: technique, weighing, black, holes, hole
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- NASA scientists pioneer technique for 'weighing' black holes
05-16-2007 · EurekAlert!
Two astrophysicists at NASA's Goddard Space Flight Center in Greenbelt, Md., Nikolai Shaposhnikov and Lev Titarchuk, have successfully tested a new method for determining the masses of black holes.
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- Unusual supernovae may reveal intermediate-mass black holes in globular clusters
01-29-2008 · EurekAlert!
A strange and violent fate awaits a white dwarf star that wanders too close to a moderately massive black hole. According to a new study, the black hole's gravitational pull on the white dwarf would cause tidal forces sufficient to disrupt the stellar remnant and reignite nuclear burning in it, giving rise to a supernova explosion with an unusual appearance.
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- Scientists reveal how supermassive black holes bind into pairs during galaxy mergers
06-07-2007 · EurekAlert!
Now, using supercomputers to simulate galaxy mergers, scientists at Stanford and elsewhere have seen the formation of a new type of structure-a central disk of gas that can be from a hundred to a few thousand light years wide and from a few hundred million to a billion solar masses. They report the first simulated formation of a supermassive black hole (SMBH) pair in the June 7 edition of Science Express, an online version of Science magazine.
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- Black hole survey
11-18-2006 · Science News Online
Scanning the sky for high-energy X rays, a NASA satellite found more than 200 supermassive black holes within 400 million light-years of Earth.
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- Listening for the cosmic symphony: New SU supercomputer will help scientists listen for black holes
02-08-2008 · EurekAlert!
Scientists hope that a new supercomputer being built by Syracuse University's Department of Physics may help them identify the sound of a celestial black hole.
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- Ultrafast Star Escapes Black Hole
10-13-2006 · ScienceDaily
At last astronomers have a method to accurately measure the speed of stars within a galaxy containing a black hole. Dutch researcher Alessia Gualandris developed the algorithm for this in cooperation with the Astronomical Institute "Anton Pannekoek" and the Amsterdam Informatics Institute. The outcomes of this groundbreaking research provide convincing evidence for the relationship between galactic nuclei, heavy black holes and ultrafast stars in the Milky Way.
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- Laser light creates black holes in the lab
02-13-2008 · EurekAlert!
Imagine being able to peek inside a black hole and even perform experiments there. It may not be as far fetched as it sounds, thanks to a team which claims to have simulated a black hole's event horizon in the lab. This could allow physicist to examine what happens to light on both sides of an event horizon -- a feat that is utterly impossible in astrophysics.
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- Galaxy may hold hundreds of rogue black holes
01-09-2008 · EurekAlert!
If the latest simulation of what happens when black holes merge is correct, there could be hundreds of rogue black holes, each weighing several thousand times the mass of the sun, roaming around the Milky Way galaxy.
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- Biggest 'small' black hole discovered
10-19-2007 · EurekAlert!
Discovery of the largest example of a 'small' black hole -- one formed from the collapse of a single massive star at the end of its lifetime -- has led scientists to reevaluate of how black holes come into being, according to a report in Nature.
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- Black hole boldly goes where no black hole has gone before
01-03-2007 · European Space Agency (ESA)
Astronomers have found a black hole where few thought they could ever exist, inside a globular star cluster. The finding has broad implications for the dynamics of stars clusters and also for the existence of a still-speculative new class of black holes called 'intermediate-mass' black holes.
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