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Sassy69
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My personal interest in this stuff - to give you historical perspective - I was at the Planetary Physics / Terrestrial Sciences conference over Halloween of 1987 in Austin, TX where Carl Sagan discussed the first evidence of a solar system outside of our own, identified by an unaccounted for force in the gravitation in a binary star system. Not directly observed, but identified by inference.
Telescope spots two mega solar systems
Thursday, February 9, 2006; Posted: 10:22 a.m. EST (15:22 GMT)
PASADENA, California (AP) -- Astronomers said Wednesday they have spotted evidence of two mega solar systems -- giant stars enveloped by what appear to be huge disks of planet-forming dust.
Cloudy disks around stars are believed to represent current or future planetary systems. Our sun is surrounded by the Kuiper Belt, a disk containing dust, comets and other bodies.
Astronomers said the latest findings were surprising because such massive stars are thought to be inhospitable to the formation of planets.
"Our data suggest that the planet-forming process may be hardier than previously believed, occurring around even the most massive stars," Joel Kastner, of the Rochester Institute of Technology, said in a statement.
Results appear in the February 10 issue of the Astrophysical Journal Letters.
The new stars were measured to be 30 to 70 times more massive than the sun. Because of the stars' size, scientists said the surrounding debris disks are larger versions of the Kuiper Belt and probably contain about 10 times more mass.
The new stars were found using NASA's Spitzer Space Telescope during a survey of 60 bright stars. Kastner said the new discoveries stuck out from the rest because an analysis indicated the presence of flat disks.
Last year, another team of scientists discovered what they believe was a mini solar system. The team found a dust cloud around a brown dwarf, or failed star.
Copyright 2006 The Associated Press. All rights reserved.This material may not be published, broadcast, rewritten, or redistributed.
Telescope spots two mega solar systems
Thursday, February 9, 2006; Posted: 10:22 a.m. EST (15:22 GMT)
PASADENA, California (AP) -- Astronomers said Wednesday they have spotted evidence of two mega solar systems -- giant stars enveloped by what appear to be huge disks of planet-forming dust.
Cloudy disks around stars are believed to represent current or future planetary systems. Our sun is surrounded by the Kuiper Belt, a disk containing dust, comets and other bodies.
Astronomers said the latest findings were surprising because such massive stars are thought to be inhospitable to the formation of planets.
"Our data suggest that the planet-forming process may be hardier than previously believed, occurring around even the most massive stars," Joel Kastner, of the Rochester Institute of Technology, said in a statement.
Results appear in the February 10 issue of the Astrophysical Journal Letters.
The new stars were measured to be 30 to 70 times more massive than the sun. Because of the stars' size, scientists said the surrounding debris disks are larger versions of the Kuiper Belt and probably contain about 10 times more mass.
The new stars were found using NASA's Spitzer Space Telescope during a survey of 60 bright stars. Kastner said the new discoveries stuck out from the rest because an analysis indicated the presence of flat disks.
Last year, another team of scientists discovered what they believe was a mini solar system. The team found a dust cloud around a brown dwarf, or failed star.
Copyright 2006 The Associated Press. All rights reserved.This material may not be published, broadcast, rewritten, or redistributed.
