Astronomers Detect and 'Weigh' Very Young Solar System 21
ogre7299 writes "Astronomers have found direct evidence of a forming proto-solar system and 'weighed' the forming star for the first time The results were reported in Nature (abstract) and the pre-print is available at the arXiv. 'The star, called L1527 IRS, is only one-fifth the mass of the sun, and is expected to keep growing as the swirling disk of matter surrounding it falls into its surface. Astronomers estimated the star formed around the same time that Neanderthals evolved on Earth: just 300,000 years ago. ... Generally, a star forms from a cloud of gas that collapses into itself. Material streams inward from the cloud and forms a protostar in the center of a disk of gas and dust. Over millions of years, material falls on the protostar and releases quite a bit of energy. In L1527, 90 percent of its energy comes from material landing on the surface of the protostar. The remaining 10 percent comes from the star itself.' Measurements for the research came from the Submillimeter Array and the Combined Array for Research in Millimeter-wave Astronomy."
Who Knew? (Score:4, Funny)
Who knew that Neanderthal gas could be so potent? Must have been all that woolly mammoth chili. "A cloud of gas that collapses into itself" sounds like it would knock the poop outta ya though.
Weighed? (Score:4, Funny)
It sounds easy to find its weight (force due to gravity). Here at earth, that solar system weighs approximately 0 N.
Doesn't sound like a good place to go (Score:4, Funny)
"The star, called L1527 IRS"
Not a good destination for interstellar travelers - they already collect taxes there.
They worked up to it (Score:3, Funny)
They didn't just start out with little solar systems. They first started by weighing less heavy things, like Richard Stallman prior to bathing.