Sentences with phrase «of auroral»

The experimental behavior supports the storm scenario the traveling atmosphere disturbances (TADs) of auroral origin and changes in the thermospheric wind are the main physical mechanisms driving equatorward - directed and vertical winds which in turn move the plasma along the magnetic field lines and raise the ionospheric peak height.

The geographical distribution of these events, shown in Section 3.3, fits very well with the boundaries of the auroral zone.

Analyzing the occurrence probability, these authors show that profiles with enhanced E-layer ionization are closely related to the location and shape of the auroral zone (Fig. 12).

From HubbleSite: «NASA's Hubble Space Telescope observed a pair of auroral belts encircling the Jovian moon Ganymede.

How does the solar wind determine the strength and morphology of auroral features in the giant planets?

Recently, Hallinan et al. (2015) reported simultaneous radio and optical spectroscopic observations (obtained with the Karl G. Jansky Very Large Array (VLA) radio telescope and the Double Spectrograph (DBSP) on the 5.1 - m Hale telescope, respectively) of auroral emissions of an object at the end of the stellar main sequence (i.e. at the boundary between stars and brown dwarfs).

However, there is a third magnetic field in the mix — one emanating from the electrically conductive, saltwater ocean and induced by Jupiter's field — that counterbalances Jupiter's field and reduces the rocking of the auroral belts.

While the cause of the auroral oval emissions is reasonably well understood, the origin of the theta aurora was unclear until now.

So scientists have started looking for the cause of the auroral variations.

The geometry of the auroral appearance as seen from Kyoto on Sept. 17 1770, is calculated for its reconstruction.

«This is our best look yet at the rapidly changing patterns of auroral emission,» said Wayne Pryor, a Cassini co-investigator at Central Arizona College in Coolidge, Ariz. «Some bright spots come and go from image to image.

Cluster's observations provide «the first look at the future of auroral research,» says space physicist Patrick Newell of the Johns Hopkins University Applied Physics Laboratory in Laurel, Maryland.

Not exact matches

That man who does not believe that each day contains an earlier, more sacred, and auroral hour than he has yet profaned, has despaired of life, and is pursuing a descending and darkening way... It matters not what the clocks say or the attitudes and labors of men.

There, the charged particles strike molecules in Earth's atmosphere that release photons of various colors (red hues come from oxygen, for example) and light up polar regions in frequent auroral displays.

A map of MAVEN's Imaging Ultraviolet Spectrograph (IUVS) auroral detections in December 2014 overlaid on Mars» surface.

The Jovian Auroral Distributions Experiment (JADE) is a set of sensors detecting the electrons and ions associated with Jupiter's auroras.

The satellite, which swoops on an egg - shaped orbit to within 350 kilometers of Earth's surface, detected electrical impulses from electrons coursing upward within charged sheets that shadow the downward flowing auroral electrons.

NASA's Fast Auroral Snapshot (FAST) satellite, launched in 1996, now has spied the outgoing electrons that close the loop, according to results shown here yesterday at a meeting of the American Geophysical Union.

According to a NASA news release, the auroral light appears in the near infrared at wavelengths of three to four microns.

But in a series of Hubble campaigns between 2005 and 2009, Nichols and his colleagues compiled enough images to show that the auroral activity at the planet's poles tends to peak in synchrony with the intensity of the SKR.

Magnetic storms recorded as auroral sightings in Meigetsuki («The Record of the Clear Moon,» ca 1180 - 1241) by Fujiwara no Teika of Japan, and in Song Shi («History of Song,» commissioned 1343) from China, have given researchers the ability to reconstruct a chronology of past astronomical events.

Nearly circular bands, called auroral ovals, surround both poles of our planet.

At times of maximum solar activity, the magnetic ferment represented by sunspots frequently releases and leaps across space to Earth — to foment magnetic storms that disrupt communications networks and light the polar skies with auroral displays.

The UVIS images, which are also being analyzed by team associate Aikaterini Radioti at the University of Liege, Belgium, also suggest that one way the bright auroral storms may be produced is by the formation of new connections between magnetic field lines.

A strong auroral display, characteristic of a space storm, followed less than three minutes later.

The far ultraviolet images revealed that the front edges of the shimmering auroral curtains, which can stretch 1000 kilometers tall on Saturn, raced across the planet's surface at more than 4 kilometers per second — about three times faster than the planet rotates, the researchers report in a forthcoming issue of Geophysical Research Letters.

This auroral display was due to a giant cloud of gas from the sun — a coronal mass ejection or CME — that collided with Earth's magnetic fields on Aug. 19, 2014, at 1:57 a.m. EDT.

Ground - based cameras called all - sky cameras, run by the University of Calgary and University of California, Berkeley, took pictures of large areas of the sky and captured Steve and the auroral display far to the north.

The new results come from Hubble's observations of Ganymede's magnetic field, which produces two auroral belts (pictured) that can be detected in the ultraviolet.

Steve is an important discovery because of its location in the sub auroral zone, an area of lower latitude than where most auroras appear that is not well researched.

NASA's IMAGE satellite, which studies the magnetosphere and auroral lights near the north and south poles, has captured numerous views of energetic «proton auroras» in ultraviolet light.

That came when the European Space Agency's Cluster satellites passed far above an auroral spot in March 2002 and detected a cascade of solar wind particles inside the magnetosphere.

The appearance of the plumes in this graphic is based on spectroscopic observations of oxygen and hydrogen in the auroral emissions.

High - resolution thermal imaging of Jupiter by the COoled Mid-Infrared Camera and Spectrometer (COMICS) mounted on the Subaru Telescope on Maunakea is providing information that extends and enhances the information that the Juno mission is gathering in its unprecedented mission to probe that planet's interior and deep atmospheric structure together with details of the magnetosphere and its auroral interactions with the planet.

The new extension will make it possible to study the auroral regions above Earth's poles and widen the investigations of the magnetosphere — its inner region in particular.

Cassini UVIS observations revealed recently the presence of small - scale structures in the dayside main auroral emissions indicative of magnetopause Kelvin - Helmholtz instabilities, which are key elements of the solar wind - magnetosphere viscous interaction (Grodent et al. 2011).

The mass loading required in this model can be achieved through interaction with the interstellar medium (ISM), the sputtering of the dwarf atmosphere by auroral currents, a volcanically active orbiting planet or magnetic reconnection in the photosphere.

Unlike the long, shimmering veils of typical auroral displays, these pulsating auroras are much dimmer and less common.

Auroral emissions, occurring when charged particles in a planetary object's magnetosphere collide with atoms in its upper atmosphere, causing them to glow, are an important demonstration of planetary space weather.

Recently, signatures of CO Cameron and CO2 + doublet ultraviolet auroral emissions have been detected with SPICAM (Gérard et al. 2015); they showed that the Mars aurora is a temporary and spatially localized phenomenon appearing near the open - closed magnetic field line boundary in cusp - like structures.

The last major solar flare was the «Carrington event» of 1859, which produced massive worldwide auroral displays and made the telegraph system do some scary things: Aside from delivering shocks to operators, telegraph paper caught fire, and there was enough residual juice in the system to send and receive telegrams even after they shut the network down.

Stallard and his team will be taking advantage of the Juno spacecraft currently in orbit around Jupiter, particularly the observations of Jupiter's aurora and upper atmosphere by the Jovian Infrared Auroral Mapper (JIRAM) instrument.

This picture of the Jupiter's South Pole is a mosaic of many images acquired by the Jovian InfraRed Auroral Mapper at wavelengths around 5 µm during perijove pass # 4.

The amount of large auroral displays tends to follow the amount of sunspots with a lag of a couple of years.

Cassini used its Ultraviolet Imaging Spectrograph to capture this final view of ultraviolet auroral emissions in Saturn's north polar region on Sept. 14, 2017.

The Nobel Committee wanted to nominate Kristian Birkeland for the prize, in recognition of the furnace he invented rather than the auroral theory he devised.

Alaska is one of the most celebrated places to visit the Aurora Borealis, mainly because its geographic location lies directly beneath the auroral oval.

Because it sits within the auroral zone, Tromsø is one of the most popular destinations for seeing the northern lights (aurora borealis).

Auroral emissions typically occur at altitudes of about 100 km (60 miles) and are often green, white, or reddish in colour depending on what species (atomic oxygen, molecular oxygen, or nitrogen, respectively) is primarily emitting light.

In the colour - coded image, which simultaneously shows dayside and nightside auroral activity, the most intense levels of activity are red, and the lowest levels are blue.