Some of the first data from a new orbiting infrared telescope are revealing that the Milky Way - and by analogy galaxies in general - is making new stars at a much more prolific pace than astronomers imagined.
Caption: The nebula RCW49, shown in infrared light in this image from the Spitzer Space Telescope, is a nursery for newborn stars. Using NASAs Spitzer Space Telescope, astronomers have found in RCW49 more than 300 newborn or protostars, all with circumstellar disks of dust and gas. The discovery reveals that galaxies make new stars at a much more prolific rate than previously imagined. The stelar disks of dust and gas not only feed material onto the growing new stars, but can be the raw material for new planetary systems.
Photo by: NASA/JPL-Caltech/University of Wisconsin-Madison
The findings from NASAs Spitzer Space Telescope were announced today (May 27) at a NASA headquarters press briefing by Edward Churchwell, a University of Wisconsin-Madison astronomer and the leader of a team conducting the most detailed survey to date of our galaxy in infrared light.
Focusing the telescope on a compact cluster of stars at the heart of a distant nebula known as RCW49, Churchwell and his colleagues discovered more than 300 newly forming stars. Each of the stars, known to astronomers as protostars, has a swirling disk of circumstellar dust and creates ideal conditions for the formation of new solar systems.
Terry Devitt | EurekAlert!
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A newly developed laser technology has enabled physicists in the Laboratory for Attosecond Physics (jointly run by LMU Munich and the Max Planck Institute of Quantum Optics) to generate attosecond bursts of high-energy photons of unprecedented intensity. This has made it possible to observe the interaction of multiple photons in a single such pulse with electrons in the inner orbital shell of an atom.
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For the first time, a team of researchers at the Max-Planck Institute (MPI) for Polymer Research in Mainz, Germany, has succeeded in making an integrated circuit (IC) from just a monolayer of a semiconducting polymer via a bottom-up, self-assembly approach.
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Researchers from the Institute of Organic Chemistry and Biochemistry of the CAS (IOCB Prague), Institute of Physics of the CAS (IP CAS) and Palacký University...
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