News tagged with spectra
Hyperspectral imaging: Shedding new light on wound healing
(Phys.org) -- Clinicians who treat severe wounds may soon have powerful new diagnostic tools in the form of hyperspectral imaging (HSI) devices, calibrated to new NIST standard reference spectra, which will ...
Apr 09, 2012 |
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Toppling Raman shift in supercritical carbon dioxide
(PhysOrg.com) -- Just as a wine glass vibrates and sometimes breaks when a diva sings the right note, carbon dioxide vibrates when light or heat serenades it. When it does, carbon dioxide exhibits a vibrational ...
Feb 29, 2012 |
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Scattered light could reveal alien atmospheres
The light scattered off distant worlds could help reveal details about their atmospheres that no other method could uncover, scientists find.
Feb 20, 2012 |
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Blue light irradiation promotes growth, increases antioxidants in lettuce seedlings
The quality of agricultural seedlings is important to crop growth and yield after transplantation. Good quality seedlings exhibit characteristics such as thick stems, thick leaves, dark green leaves, and large white roots. ...
Dec 12, 2011 |
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Researchers unravel the mystery of quantum dot blinking
(PhysOrg.com) -- Research by Los Alamos scientists published today in the journal Nature documents significant progress in understanding the phenomenon of quantum-dot blinking. Their findings should enhanc ...
Nov 09, 2011 |
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Scientists develop the most advanced computer model to-date of the scattering of polarized light from chiral molecules
(PhysOrg.com) -- An international research team has described the first calculations of Raman optical activity (ROA) spectra using coupled-cluster theory – one of the most reliable quantum chemical methods ...
Chemistry / Analytical Chemistry
Oct 04, 2011 |
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Team calculates the role of buried layers in few-layer epitaxial graphene
A CNST-led collaboration with the University of Maryland and the University of Texas has computed how electrostatic interactions between electrons in different layers of few-layer graphene affect the properties ...
Nanotechnology / Nanomaterials
Jun 08, 2011 |
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Astro-H Satellite Will Gather Elusive X-ray Data
Japanese and Canadian astronomers are working together to develop a new satellite capable of detecting and imaging high- and low-energy X-ray emissions from space.
Space & Earth / Space Exploration
May 30, 2011 |
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Want to make planets? Better hurry
Currently, astronomers have two competing models for planetary formation. In one, the planets form in a single, monolithic collapse. In the second, the core forms first and then slowly accretes gas and dust. ...
May 24, 2011 |
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Energizing the Filaments of NGC 1275
When examining clusters of galaxies, astronomers often find massive elliptical galaxies lurking at the centers. In some of these, long filaments of gas and dust extend outwards from the core. One of the best ...
May 11, 2011 |
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First light for new spectrograph
The new observing instrument VIRUS-W, built by the Max Planck Institute for Extraterrestrial Physics and the University Observatory Munich, saw "first light" on 10th November at the Harlan J. Smith Telescope ...
Jan 26, 2011 |
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Did GD61 eat a Planetessimal?
The primary method by which astronomers hope to study exoplanet atmospheres is by detecting their absorption spectra as they transit their parent stars. However, another way would be to detect the signal of ...
Jan 06, 2011 |
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Ccatalina Sky Survey discovers possible extinct comet
(PhysOrg.com) -- The extraterrestrial rock is tumbling through space alongside thousands of similar objects in our solar system's main asteroid belt, roughly between the orbits of Mars and Jupiter.
Space & Earth / Space Exploration
Dec 21, 2010 |
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Magnetic fields on O-Class stars
The primary method by which astronomers can measure magnetic field strength on stars is the Zeeman effect. This effect is the splitting of spectral lines into two due to the magnetic field's effect on the ...
Dec 20, 2010 |
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Possible eruption on brink for symbiotic variable star
November 23rd, astronomers from the Asiago Novae and Symbiotic Stars collaboration announced recent changes in the symbiotic variable star, AX Persei, could indicate the onset of a rare eruption of this system. ...
Nov 26, 2010 |
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