Sentences with phrase «emission of ultraviolet light»

Not exact matches

«We control the below - threshold harmonic light emission by using electromagnetic fields with time - dependent ellipticity, like we have done to the above - threshold high - order harmonics,» said Chang referring to the creation of a 67 - attosecond pulse of extreme ultraviolet light, which earned him international recognition.

By studying such a large data set — over 200,000 galaxies in 21 different wavelengths, or colors of light, from ultraviolet to infrared — astronomers compared the energy emissions from galaxies across a wide swath of space and time to read the history of the universe.

The aftermath of the neutron star collision detected in August included the gravitational waves spotted by LIGO and VIRGO (pale arcs); a near - light - speed jet that produced gamma rays (magenta); expanding debris from a kilonova — an explosion similar to a supernova, but smaller — that produced ultraviolet (violet), optical and infrared (blue - white to red) emission; and X-rays (blue).

My work currently focuses on observations of the ultraviolet light emitted from small stars, and in particular flares of that emission.

These star - formation rate estimators include the ultraviolet light that is emitted from young stars, the infrared light that shows how much of the ultraviolet light was absorbed by dust, and the nebular emission lines that are caused by young stars making the clouds of gas around them glow and radiate.

This study makes the first direct comparison between the optical emission line and the ultraviolet and infrared tracers of star formation and indicates that, despite the underlying uncertainties, astronomers can trust the nebular emission lines as robust indicators of the star - formation rate and the amount of light that is obscured by dust in distant galaxies.

The Guo Shou Jing telescope was able to harvest short ultraviolet light emissions from the 100,000 stars involved in the study, in the space of a few weeks.

Rogier Windhorst, Sam Pascarelle, Arizona State University, STScI, NASA Larger true - color image of ultraviolet emission redshifted to visible light.

Figure 1 (a) represents the corrected visible light from Neptune from 1950 to 2006; (b) shows the temperature anomalies of the Earth; (c) shows the total solar irradiance as a percent variation by year; (d) shows the ultraviolet emission from the Sun (Source: Hammel and Lockwood (2007)-RRB-.