Radio Astronomers Develop New Technique for Studying Dark Energy
in [Physics]
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From: Sam Wormley on 25 Jul 2010 09:35 Radio Astronomers Develop New Technique for Studying Dark Energy http://www.prnewswire.com/news-releases/radio-astronomers-develop-new-technique-for-studying-dark-energy-98936224.html "Sound waves in the matter-energy soup of the extremely early universe are thought to have left detectable imprints on the large-scale distribution of galaxies in the universe. The researchers developed a way to measure such imprints by observing the radio emission of hydrogen gas. Their technique, called intensity mapping, when applied to greater areas of the universe, could reveal how such large-scale structure has changed over the last few billion years, giving insight into which theory of dark energy is the most accurate". "Our project mapped hydrogen gas to greater cosmic distances than ever before, and shows that the techniques we developed can be used to map huge volumes of the universe in three dimensions and to test the competing theories of dark energy," said Tzu-Ching Chang, of the Academia Sinica in Taiwan and the University of Toronto.
From: HardySpicer on 25 Jul 2010 15:14 On Jul 26, 1:35 am, Sam Wormley <sworml...(a)gmail.com> wrote: > Radio Astronomers Develop New Technique for Studying Dark Energy > > http://www.prnewswire.com/news-releases/radio-astronomers-develop-new... > > "Sound waves in the matter-energy soup of the extremely early universe > are thought to have left detectable imprints on the large-scale > distribution of galaxies in the universe. The researchers developed a > way to measure such imprints by observing the radio emission of hydrogen > gas. Their technique, called intensity mapping, when applied to greater > areas of the universe, could reveal how such large-scale structure has > changed over the last few billion years, giving insight into which > theory of dark energy is the most accurate". > > "Our project mapped hydrogen gas to greater cosmic distances than ever > before, and shows that the techniques we developed can be used to map > huge volumes of the universe in three dimensions and to test the > competing theories of dark energy," said Tzu-Ching Chang, of the > Academia Sinica in Taiwan and the University of Toronto. Yeh but they're having a bit of trouble cos they can't see it - it's so dark. Hardy
From: Sam Wormley on 25 Jul 2010 15:20 On 7/25/10 2:14 PM, HardySpicer wrote: > On Jul 26, 1:35 am, Sam Wormley<sworml...(a)gmail.com> wrote: >> Radio Astronomers Develop New Technique for Studying Dark Energy >> >> http://www.prnewswire.com/news-releases/radio-astronomers-develop-new... >> >> "Sound waves in the matter-energy soup of the extremely early universe >> are thought to have left detectable imprints on the large-scale >> distribution of galaxies in the universe. The researchers developed a >> way to measure such imprints by observing the radio emission of hydrogen >> gas. Their technique, called intensity mapping, when applied to greater >> areas of the universe, could reveal how such large-scale structure has >> changed over the last few billion years, giving insight into which >> theory of dark energy is the most accurate". >> >> "Our project mapped hydrogen gas to greater cosmic distances than ever >> before, and shows that the techniques we developed can be used to map >> huge volumes of the universe in three dimensions and to test the >> competing theories of dark energy," said Tzu-Ching Chang, of the >> Academia Sinica in Taiwan and the University of Toronto. > > Yeh but they're having a bit of trouble cos they can't see it - it's > so dark. > > > Hardy Hardy, do you think other form of energy are something you "see"? Or just the effcts, as in the case of dark energy?
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