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| Black Hole One of
Oldest, Largest Yet |
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BIG SUCKER: Artist's rendition
of the newfound blazar.space
Courtesy Nasa |
astrophysicist at stanford
have identified a supersized whopper of a black hole—10
billion times the mass of our sun, and one of the oldest
yet found. “It’s within a billion years
of the origin of it all,” says associate professor
of physics Roger Romani.
Scientists believe the universe formed some 13.7 billion
years ago with the Big Bang, and the newly discovered
black hole is thought to have formed at the end of what
is called the “Dark Age,” when the universe
began to light up with stars and galaxies. The hole,
categorized as a “blazar,” sits in the center
of a galaxy, sucking in stars and gases and generating
enormous energy—a process “far more efficient
even than nuclear fusion,” according to Romani.
Romani made the discovery with graduate student David
Sowards-Emmerd, MS ’02, physics professor Peter
Michelson, MS ’76, PhD ’80, and radio astronomer
Lincoln Greenhill of the Harvard-Smithsonian Center
for Astrophysics. They worked together at Stanford’s
Kavil Institute for Particle Astrophysics and Cosmology.
The team has surveyed some 200 blazars in preparation
for the 2007 launch of NASA’s Gamma Ray Large
Area Space Telescope, which will map the changing positions
and intensities of celestial bodies over time.
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