News tagged with dust emissions
Three-telescope interferometry allows astrophysicists to observe how black holes are fueled
(Phys.org) -- By combining the light of three powerful infrared telescopes, an international research team has observed the active accretion phase of a supermassive black hole in the center of a galaxy tens ...
May 16, 2012 |
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Dusty stellar nurseries from the dark side of a galaxy
(Phys.org) -- A new multi-million pound camera is producing its first detailed pictures of our neighboring galaxies, revealing vast, dusty stellar nurseries where the next generation of stars is being created. ...
Apr 18, 2012 |
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The earliest stages of planet formation
(PhysOrg.com) -- Small dust particles in a disk of gas around a young star, according to current models, gradually coagulate during the first million years until kilometer-sized objects are formed. These in ...
Mar 26, 2012 |
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China's pollution related to E-cars may be more harmful than gasoline cars, researchers find
Electric cars have been heralded as environmentally friendly, but findings from University of Tennessee, Knoxville, researchers show that electric cars in China have an overall impact on pollution that could be more harmful ...
Feb 13, 2012 |
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Dust makes light work of vehicle emissions
Queensland University of Technology (QUT) researchers have identified a silver lining in the cloud of red dust that enveloped much of eastern Australia two years ago.
Space & Earth / Earth Sciences
Sep 23, 2011 |
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Researchers examine way to undercut dust emissions
There is literally a way to undercut dust emissions in the very driest parts of the Pacific Northwest's Columbia Plateau region, according to a U.S. Department of Agriculture (USDA) scientist.
Jul 14, 2011 |
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Gamma-ray emission from Terzan 5
(PhysOrg.com) -- The H.E.S.S. telescope system in Namibia discovered a new source of very-high-energy gamma-rays from the direction of the globular cluster Terzan 5. Being very likely located in the outer ...
Jun 24, 2011 |
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Tracking down particulates
Wood-burning stoves are enjoying a surge in popularity. But burning biomass releases fine dust particles that are hazardous to health. Consequently, new legal limits for particulate emissions from such stoves ...
Dec 02, 2010 |
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Blushing dusty nebula
On Earth, we tend to find dust nothing more than a nuisance that blankets our furniture and causes us to sneeze. Cosmic dust can also be a hindrance to astronomers because cameras using visible light cannot ...
Dec 01, 2009 |
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The Energy Sources of Ultraluminous Galaxies
(PhysOrg.com) -- Ultraluminous infrared galaxies ((ULIRGs) are galaxies whose luminosity exceeds that of a trillion suns; for comparison, the Milky Way galaxy has a typical (and much more modest) luminosity ...
Nov 27, 2009 |
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Tracing ultra-fine dust
Limit values for fine dust emissions are based on total particle weight. It is the ultra-fine particles, however, that are particularly harmful to health. A new technique separates them by size and identifies ...
Oct 05, 2009 |
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First direct evidence of lightning on Mars detected
For the first time, direct evidence of lightning has been detected on Mars, say University of Michigan researchers who found signs of electrical discharges during dust storms on the Red Planet.
Space & Earth / Space Exploration
Jun 17, 2009 |
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Scientists monitor developing Mars dust storm
(PhysOrg.com) -- Scientists at Arizona State University's Mars Space Flight Facility are using the Thermal Emission Imaging System (THEMIS) on NASA's Mars Odyssey orbiter to monitor a new dust storm that has ...
Space & Earth / Space Exploration
Apr 20, 2009 |
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