Stellar opacities in a flash
Article Abstract:
The opacity of matter has been determined at the temperatures and densities found inside stars. L.B. Da Silva and colleagues heated a thin slice of iron with an X-ray laser and then measured the iron's photo-absorption using another X-ray laser. The resulting opacity was strikingly close to the opacity tables that F.J. Rogers and C.A. Iglesias obtained through a supercomputer analysis of atomic physics. The opacity of stellar matter must be estimated indirectly since the stars' interiors cannot be seen.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1992
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Observation of high-energy neutrinos using Cerenkov detectors embedded deep in Antarctic ice
Article Abstract:
Research is presented concerning the use of Cerenkov detectors to observe low-energy neutrinos from a supernova and from the sun. Neutrinos which have been generated in the atmosphere of the Earth are also detected.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2001
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A stellar performance
Article Abstract:
Research is presented describing the study of stellar creation using a time-lapse telescope system which monitors the birth of a star over a period of time.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2001
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