News tagged with light intensities

Massive stellar winds are made of tiny pieces

(Phys.org)—ESA's XMM-Newton space observatory has completed the most detailed study ever of the fierce wind from a giant star, showing for the first time that it is not a uniform breeze but is fragmented ...

dateFeb 05, 2013 in Astronomy
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A light to manage learning exercises

Imagine a classroom. Students are working on their exercises. The hands go up to call the teacher or assistant. It is impossible for them to know who asked first, who most needs their help, how much time the students spent ...

dateJan 21, 2013 in Social Sciences
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Galaxy-wide echoes from the past

(Phys.org)—A new galaxy class has been identified using observations from ESO's Very Large Telescope, the Gemini South telescope, and the Canada-France-Hawaii Telescope. Nicknamed 'green bean galaxies' ...

dateDec 05, 2012 in Astronomy
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Record-setting X-ray jet discovered

A jet of X-rays from a supermassive black hole 12.4 billion light years from Earth has been detected by NASA's Chandra X-ray Observatory. This is the most distant X-ray jet ever observed and gives astronomers ...

dateNov 28, 2012 in Astronomy
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X-raying stellar winds in a high-speed collision

(Phys.org)—Two massive stars racing in orbit around each other have had their colliding stellar winds X-rayed for the first time, thanks to the combined efforts of ESA's XMM-Newton and NASA's Swift space ...

dateOct 12, 2012 in Astronomy
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