Sentences with phrase «strong ultraviolet»

Using Keck Observatory's powerful infrared spectrograph called MOSFIRE, the team dated the galaxy by detecting its Lyman - alpha emission line — a signature of hot hydrogen gas heated by strong ultraviolet emission from newly born stars.

This condition is produced by the strong ultraviolet light emitted from the very luminous, hot stars embedded in the gas.

There is strong evidence that some bacteria can survive strong ultraviolet light from the sun and other space radiation.

The star's loss of its outer, gaseous layers exposes the hot stellar core, whose strong ultraviolet radiation then causes the... Read more

The diffuse gas clouds backlit by J1717 - 337 and NRAO530 show chemical composition similar to the gas in active star forming regions, indicating that the diffuse gas is bathed in strong ultraviolet light.

The UV index is an international standard measurement of how strong the ultraviolet (UV) radiation from the sun is at a particular place on a particular day.

Not exact matches

The ultraviolet light pushes the electrons into the iron trap — then the red light has enough energy to transfer them into the stronger manganese traps.

Not even the most intense meteor storms on Earth have produced as strong a response as this one: The emission dominated Mars» ultraviolet spectrum for several hours after the encounter and then dissipated over the next two days, according to the MAVEN science team.

One strong possibility is that the ultraviolet (UV) radiation from the first - generation galaxies in the one - billion - year - old Universe ionized the hydrogen gas.

In particular, astronomers would like to see the Milky Way's star - forming regions emit ultraviolet radiation known as Lyman alpha because it's expected to be both strong and a key diagnostic of conditions in stellar nurseries.

Such materials display a strong absorption of ultraviolet or visible light, making them attractive as primary light absorbers in molecular solar cells and other devices of molecular optoelectronics.

«Now that we know such large changes occur, we think of hydrogen escape from Mars less as a slow and steady leak and more as an episodic flow — rising and falling with season and perhaps punctuated by strong bursts,» said Michael Chaffin, a scientist at the University of Colorado at Boulder who is on the Imaging Ultraviolet Spectrograph (IUVS) team.

The team also presented the first observational evidence that WASP - 33b's atmosphere contains titanium oxide, one of only a few compounds that is a strong absorber of visible and ultraviolet radiation and capable of remaining in gaseous form in an atmosphere as hot as this one.

The joint work, recently published in Advanced Materials Interfaces, shows that these composite materials could become 93 - percent stiffer and 35 - percent stronger after a five minute exposure to ultraviolet light.

Upon ultraviolet light exposure, a chemical reaction occurs such that the interaction between the reinforcing agents and the polymer increases, thus making the material stiffer and stronger.

«They're producing these strong winds that could be opening an escape route for ultraviolet light.

«We don't really know why it is so much stronger at Venus than Earth,» said Collinson, «but, we think it might have something to do with Venus being closer to the sun, and the ultraviolet sunlight being twice as bright.

This suggests that the accretion disk and gas stream are strong enough to survive despite the damage caused by ultraviolet light,» explained Andrés Guzmán, the study's principal researcher and a postdoctoral fellow at the University of Chile.

«Now that we know such large changes occur, we think of hydrogen escape from Mars less as a slow and steady leak and more as an episodic flow — rising and falling with season and perhaps punctuated by strong bursts,» said Michael Chaffin, a scientist at the University of Colorado Boulder's Laboratory for Atmospheric and Space Physics who is on the Imaging Ultraviolet Spectrograph (IUVS) team.

C. Carreau, ASPERA - 4 & MAG teams, Venus Express, ESA Annotated image illustrating loss of hydrogen through plasma wake Venus may have lost oceans of water due to a runaway greenhouse effect which evaporated water into the upper atmosphere, where ultraviolet light dissociated water into ionized atomic hydrogen and oxygen (some later incorporated into carbon dioxide) that were blown away by the Solar wind due to the lack of a strong magnetic field like the Earth's (more).

Between the non-stop action and the lack of a strong male lead, your chance of hooking up after taking someone to this movie is slightly less than the chance that «Ultraviolet» will win the Best Picture Oscar in 2007.

Advisory: On top of the film's violence and strong language, «Ultraviolet» may be the worst date movie ever.

In many Mediterranean climates there is a strong diurnal character to daily temperatures in the warm summer months, due to the great loss of ultraviolet radiation from the sun at night.

The study group has created ultrathin sheets composed of black phosphorous layers, which feature strong light absorption in the near - infrared as well as ultraviolet and visible light ranges, combined with lanthanum titanate layers.

The dryness of the air is associated with strong penetration of ultraviolet.

The postulated effects are from increased solar ultraviolet output, affecting upper atmosphere chemistry, and from stronger solar wind — the continuous flow of charged particles emanating from the sun that bathes the whole solar system.

A rooftop is an extreme environment with strong and variable wind patterns and little or no protection from the sun's intense heat and ultraviolet radiation.

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