News tagged with interferometer
Earth-like Planets May Be Ready for Their Close-Up
(PhysOrg.com) -- Many scientists speculate that our galaxy could be full of places like Pandora from the movie "Avatar" -- Earth-like worlds in solar systems besides our own.
Jun 24, 2010 |
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New phenomenon found in internal waves
(PhysOrg.com) -- Internal waves -- huge but nearly invisible ripples that occur in the oceans, the atmosphere and stars -- can play an important role in climate change and other processes, but there is plenty ...
Apr 28, 2010 |
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Researchers Holding Steady in an Atomic-Scale Tug-of-War
(PhysOrg.com) -- How hard do you have to pull on a single atom of -- let's say -- gold to detach it from the end of a chain of like atoms?* It's a measure of the astonishing progress in nanotechnology that ...
Mar 31, 2010 |
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Quantum measurement precision approaches Heisenberg limit
(PhysOrg.com) -- In the classical world, scientists can make measurements with a degree of accuracy that is restricted only by technical limitations. At the fundamental level, however, measurement precision ...
Feb 26, 2010 |
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Most precise test yet of Einstein's gravitational redshift
(PhysOrg.com) -- While airplane and rocket experiments have proved that gravity makes clocks tick more slowly - a central prediction of Albert Einstein's general theory of relativity - a new experiment in ...
Feb 17, 2010 |
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Closing the loop for ALMA
On 20 November 2009 the third antenna for the ALMA observatory was successfully installed at the Array Operations Site, the observatory's "high site" on the Chajnantor plateau, at an altitude of 5000 metres ...
Jan 04, 2010 |
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Keck Telescopes Take Deeper Look at Planetary Nurseries
(PhysOrg.com) -- Astronomers using the W. M. Keck Observatory have peered far into a young planetary system, giving an unprecedented view of dust and gas that might eventually form planets similar to Jupiter, ...
Dec 23, 2009 |
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Does weak equivalence break down at the quantum level?
(PhysOrg.com) -- One of the givens in physics is the weak equivalence principle. This principle has been considered solid since Einstein proposed that it is not possible to detect the difference between uniform acceleration ...
Dec 08, 2009 |
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New interferometer could simplify materials research
(PhysOrg.com) -- “Most current hard x-ray interferometers are based on crystals, which require their high quality and high mechanical stability,” Anatoly Snigirev tells PhysOrg.com. “This can make x-ray interferometry quite ...
Aug 13, 2009 |
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Double engine for a nebula
(PhysOrg.com) -- The new image, showing a very rich field of stars towards the Carina arm of the Milky Way, is centred on the star HD 87643, a member of the exotic class of B[e] stars [1]. It is part of a ...
Aug 05, 2009 |
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An Intriguing, Glowing Galaxy
A supermassive black hole may be responsible for the glowing appearance of galaxy 3C 305, located about 600 million light years away in the constellation Draco. Composite data from NASA’s Chandra X-ray Observatory ...
May 14, 2009 |
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Major milestone: First two ALMA telescope antennas linked
On 30 April, the team observed the first "interferometric fringes" of an astronomical source by linking two 12-metre diameter ALMA antennas, together with the other critical parts of the system. Mars was chosen ...
May 06, 2009 |
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In the heart of the Orion Nebula
(PhysOrg.com) -- A team of astronomers, led by Stefan Kraus and Gerd Weigelt from the Max-Planck-Institute for Radio Astronomy (MPIfR) in Bonn, used ESO's Very Large telescope Interferometer (VLTI) to obtain ...
Apr 02, 2009 |
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Powerful New Technique to Measure Asteroids' Sizes and Shapes
A team of French and Italian astronomers have devised a new method for measuring the size and shape of asteroids that are too small or too far away for traditional techniques, increasing the number of asteroids ...
Feb 04, 2009 |
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Black Holes Lead Galaxy Growth
(PhysOrg.com) -- Astronomers may have solved a cosmic chicken-and-egg problem -- the question of which formed first in the early Universe -- galaxies or the supermassive black holes seen at their cores.
Jan 06, 2009 |
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