Sentences with phrase «hot ultraviolet»
The discovery of hot ultraviolet stars in globular clusters proved to be a real surprise to astronomers in the 1970s, who thought that only young, massive stars could shine in the ultraviolet.
http://www.messier-objects.com/ Not exact matches
They are bright in the far ultraviolet, a trademark of a hot white dwarf.
These globules are under fierce bombardment from the ultraviolet radiation from nearby hot young stars.
Larger Bok globules in quieter locations often collapse to form new stars but the ones in this picture are under fierce bombardment from the ultraviolet radiation from nearby hot young stars.
This hot gas excited the cool, five - kilometer - per - second breeze of hydrogen molecules and heavier elements emanating from Mira, causing it to glow in the ultraviolet.
Ground - based remote sensing through ultraviolet and infrared spectroscopy is used to measure the composition of a volcanic plume, the column of hot volcanic ash, gas, and rock emitted when the volcano erupts.
With masses around 10 times that of the Sun, these hot stars radiate intense ultraviolet light.
A computer model developed by the team suggests that the grains must reach the size of boulders within a million years; otherwise, the dust particles and circumstellar gases will be blown apart by fierce ultraviolet radiation from the nebula's hottest, most massive young stars.
Future x-ray and ultraviolet telescopes will map the cosmic web more thoroughly, he predicts, shedding light on how gravity assembled hot gas into today's panoply of galaxies and stars.
The youngest white dwarfs are the hottest and emit strongly in the extreme ultraviolet, which corresponds to temperatures between 100 000 °C and about 1 million °C.
The gas glows because young, extremely hot stars like these are emitting intense ultraviolet light which strips the surrounding gas of its electrons and causes it to emit the faint glow seen in this image.
[2] Neutral hydrogen gas absorbs all the high - energy ultraviolet light emitted by hot young stars very efficiently.
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 first evidence of the presence of this super hot plasma was presented by Adrian Daw, a solar scientist at Goddard and principal investigator of the Extreme Ultraviolet Normal Incidence Spectrograph, or EUNIS, sounding rocket mission.
The solar corona is so hot that it is best observed with X-ray and extreme - ultraviolet (EUV) cameras.
Radiation from hot young stars could account for ionised oxygen in the cloud, but not the ionised neon: neon doesn't shine in the ultraviolet, as seen in the cloud, without lots of X-rays hitting it.
The dwarf is not hot enough to fuse carbon or oxygen, so it no longer burns like a star, but for a time it is still plenty hot enough - more than 50,000 degrees Fahrenheit - to expel the remnants of its atmosphere and to blast all that departed gas with ultraviolet light.
Gas and dust clouds in 30 Doradus, also known as the Tarantula Nebula, have been sculpted into elongated shapes by powerful winds and ultraviolet radiation from these hot cluster stars.
The «colours» are due to differences in the surface temperature of starsw1: hotter stars emit most of their light in the visible blue or ultraviolet regions of the electromagnetic spectrum, whereas cooler stars radiate at longer wavelengths, in the visible red or infrared regions (see Mignone & Barnes, 2011a).
The hottest stars also emit a significant fraction of their light in the ultraviolet band and the coolest stars emit a significant fraction of their light in the infrared band.
When the star's ultraviolet radiation strikes the gases in the nebula, they heat up, giving out radiation ranging in wavelength from blue — emitted by hot oxygen in the bubble near the star — to yellow — emitted by hot hydrogen and nitrogen.
The moss consists of hot gas at about two million degrees Fahrenheit which emits extreme ultraviolet light observed by the TRACE instrument.
Solar moss consists of hot gas at about two million degrees Fahrenheit which emits extreme ultraviolet light observed by the TRACE instrument.
The star's loss of its outer, gaseous layers exposes the hot stellar core, whose strong ultraviolet radiation then causes the... Read more
They are illuminated and heated by a torrent of energetic ultraviolet light from its four hottest and most massive stars, called the Trapezium, which lie near the center of the image.
This condition is produced by the strong ultraviolet light emitted from the very luminous, hot stars embedded in the gas.
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.
Images from the Extreme ultraviolet Imaging Telescope (EIT) and the Coronal Diagnostics Spectrometer (CDS) on SOHO show the hot gases of the ever - changing corona reacting to the evolving magnetic fields rooted in the solar surface.
To feed uncontaminated water to the hot - water drill, a 40 - foot shipping container held a water purification system with filters down to 0.2 microns and then a high - intensity ultraviolet lamp «that blasted any organisms that were still present,» Christner says.
O - type stars are very hot and extremely luminous, with most of their radiated output in the ultraviolet range.
Hubble, being a space - based observatory with state - of - the - art spectrographs, can search for the missing colors of light absorbed by the intergalactic gas, particularly in the high - energy ultraviolet colors where the hot intergalactic gas does a significant amount of absorption.
These dense winds can be rendered visible by ultraviolet light from the hot central star or from highly supersonic collisions with the ambient gas that excites the material into florescence.
At ultraviolet wavelengths, Hubble's Cosmic Origins Spectrograph (COS) is sensitive to absorption from hot gas, which shows up as reduced brightnesses at specific colors in a spectrum.
In 1956, astronomer Lyman Spitzer Jr. proposed that there was a significant amount of hot gas outside of galaxies that could be detected in high - energy ultraviolet light.
Ultraviolet light is the most abundant type of energy generated by very hot stars.
Hot stars burn brightly in this image from NASA's Galaxy Evolution Explorer, showing the ultraviolet side of a familiar face.
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If you could heat the metal even hotter, it would glow a bluish white, and eventually it would emit energy primarily in the ultraviolet.
All hot objects emit electromagnetic radiation, which includes radio waves, visible light, and x - rays, as well as ultraviolet and infrared radiation.