Sentences with phrase «magnetic field observations»

On the other hand, Cassini plasma and magnetic field observations revealed signatures of reconnection at Saturn's magnetopause (McAndrews et al. 2008).

The spacecraft also made magnetic field observations when it got closer to the Saturn.

Not exact matches

The only protruding features beyond the shield are a 10 - metre electric field antennae and an 11 - metre magnetometer boom (used to make magnetic observations).

Observations during the total solar eclipse may explain why the sun's atmosphere is so organized despite arising from a tangled magnetic field.

By combining observations from the ground and in space, the team observed a plume of low - energy plasma particles that essentially hitches a ride along magnetic field lines — streaming from Earth's lower atmosphere up to the point, tens of thousands of kilometers above the surface, where the planet's magnetic field connects with that of the sun.

The Auger observations should also help track magnetic fields in the galaxy, because these fields bend charged cosmic rays slightly off a straight path.

The latest observations, reported online January 10 in Nature and at a meeting of the American Astronomical Society, suggest the bursts are coming from an environment with an unusually strong magnetic field.

Previous observations suggest the magnetic field disappeared relatively rapidly, over 100 million years.

This modeling would be aided by observations that somehow capture the direction of the magnetic field within the CME as it leaves the sun and by «a better understanding of how the magnetic field will change and evolve as the CME makes its multiday transit from the sun to Earth,» Viereck says.

Astronomical observations aren't detailed enough to settle the argument, and computer models require a complex mix of data from general relativity, plasma physics, and magnetic fields.

The Galileo spacecraft took brief «snapshot» measurements of the magnetic field in 20 - minute intervals, but its observations were too brief to distinctly catch the cyclical rocking of the ocean's secondary magnetic field.

Using several years» worth of observations, they were able to build up a more complete picture of the magnetic field structure that supports the plasma, in structures known as prominences.

Observations of an elderly, rapidly rotating star known as a pulsar in the vicinity of Sgr A * have now provided the first sensitive measure of the magnetic field associated with the black hole.

Recent observations of the galaxy MCG -6-30-15 suggest thatthe spinning of its central black hole inside a huge magnetic field produces power just like an electric generator.

But observations last year hint that the protostar's stellar wind was flowing more quickly from the object's poles (relative speeds depicted in bluish ovoid in image above), and its magnetic field had become aligned with that of the larger cloud of gas and dust that surrounds it, the researchers report online today in Science.

In a study published in the Astrophysical Journal Letters, scientists from the University of New Hampshire and colleagues answer the question of why NASA's Voyager 1, when it became the first probe to enter interstellar space in mid-2012, observed a magnetic field that was inconsistent with that derived from other spacecraft observations.

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.

The observations by the Breakthrough Listen team at UC Berkeley using the Robert C. Byrd Green Bank Telescope in West Virginia show that the fast radio bursts from this object, called FRB 121102, are nearly 100 percent linearly polarized, an indication that the source of the bursts is embedded in strong magnetic fields like those around a massive black hole.

Bismuth is a historically interesting element for scientists, as a number of important discoveries in the metal physics world were made while studying it, including important observations about the effect of magnetic fields on electrical conductivity.

Given the corona is not expected to change much before the eclipse, scientists at the NSO used current observations to create a coronal magnetic model that shows where they expect to see field lines concentrated during the eclipse.

The study used advanced high - resolution observations from the Dunn Solar Telescope in New Mexico (USA) alongside complementary observations from NASA's Solar Dynamics Observatory, to analyse the strongest magnetic fields that appear in sunspots.

«Only by combining the high quality observations at very different wavelengths could we do this and when we separated these energy sources the effect of the magnetic field was surprisingly clear.»

These new and unique observations of the jets and estimates of magnetic field of V404 Cygni involved studying the body at several different wavelengths.

They combined observations in the visible and the near infrared from the Hubble Space Telescope with radio observations from the Very Large Array and the Submillimeter Array to explore the effect of the turbulence, stellar radiation, and magnetic field on massive star formation in the galaxy's nuclear ring.

In combination with theoretical models, the observations suggest that the magnetic field distribution in the outer layers may have become a bit thinner.

Since their theory predicts a specific relation between the size of the black hole — or star cluster — and the galaxy's magnetic field strength, future observations may put their ideas to the test.

«We found that the magnetic field direction is quite well preserved from large to small scales, implying that self - gravity and cloud turbulence are not able to significantly alter the field direction,» said lead author Hua - bai Li (The Chinese University of Hong Kong), who conducted the high - resolution observations while a post-doctoral fellow at the Harvard - Smithsonian Center for Astrophysics (CfA).

Cluster has provided the first 3D observation of magnetic reconnection in space — a phenomenon that reconfigures the magnetic field and releases high amounts of energy.

On the basis of these observations we conclude that class I excursions, epitomized by the Laschamp Excursion, are more closely related to normal secular variation and are not necessarily a prelude to magnetic field reversal.»

Supernova remnants — the leftovers of massive stellar explosions — possess magnetic fields much stronger than previously thought, recent observations of pulsating X-ray hot spots reveal.

Additionally, as this NASA press release details, Juno's observations reveal that Jupiter's magnetic field — already known to be the most intense in the solar system — is even stronger than previously estimated, and uneven, with lumpy areas of relative strength and weakness.

«The science from these recent observations is really interesting and what we've learned about the magnetic field is just the first part of it,» Catherine Johnson, a planetary scientist at the University of British Columbia in Vancouver and lead author of the study, said in a statement.

«This FRB, like others detected, is thought to originate from outside of Earth's own Milky Way galaxy, which means their signal has travelled over many hundreds of millions of light years, through a medium that — while invisible to our eyes — can be turbulent and affected by magnetic fields,» Ryan Shannon from Australia's ICRAR - Curtin University, the co-lead author of a study detailing the observation, said in a statement.

The VLBA observations provide the first evidence for an ordered magnetic field in another star.

«This breakthrough observation gives us the first measurement of magnetic fields in the afterglow of a GRB,» said Swift lead scientist Neil Gehrels, Swift lead scientist at NASA's Goddard Space Flight Center in Greenbelt, Md..

To carry out novel investigations based on spectro - polarimetric observations with ground - based and space solar telescopes, with emphasis on the study of the magnetic field in chromospheric and coronal structures and its coupling with the underlying photosphere.

Based on these observations and experiments, Harker and Pevtsov conclude that the observed magnetic transient is not an artifact created by the SDO / HMI observation process, but instead represents a real change in the vector magnetic field; since the active region was located so close to the solar limb, this suggests that the transient manifested in the horizontal component of the magnetic field (relative to the solar surface).

Polarized waves, which are generated under special conditions, provide us with important information that can not be obtained by ordinary radio observations such as magnetic force (magnetic fields) existing in space.

Subtle dynamical motions measured by Earth - based radar, the observed parameters of its gravity field, and observations of the magnetic field indicate that Mercury's core is at least partially liquid with an active core dynamo.

NOAA's Space Weather Prediction Service, based in part on these observations, predicts strong disturbances to Earth's magnetic field on January 9 and 10 as energetic material from the flare passes by the Earth.

The MESSENGER observations and data from the two earlier Mariner 10 flybys are consistent enough to describe a dipolar field with an active electrical dynamo in which the magnetic field is produced by electrical currents flowing in an outer core of molten metal (more discussion and images from MESSENGER's January 2008 flyby).

The spacecraft will begin regular observations April 4, 2011 by using seven instruments to investigate the composition of the planet's surface, measure its topology, and mesure the planet's magnetic field (NASA Science News; and Maggie McKee, New Scientist, March 16, 2011).

One must consider the various effects that alter the measured polarized signal, such as the shape of dust grains, the efficiency of grain alignment, the magnetic field properties, a... ▽ More (Sub --RRB- Millimeter observations of the polarized emission of aligned aspherical dust grains enable us to study the magnetic fields within protoplanetary disk.

The study brought together data from several spacecraft, as well as supporting observations from solar wind probes and ground - based geomagnetic observatories, to develop a model that describes the Earth's magnetic field and its interaction with the solar wind not just theoretically as had been the case previously, but based on actual measurements.

There is also an interesting suite of anomalies associated with observations related to the solar magnetic field and stellar magnetic fields.

For our earlier discussion the most significant observation is that the magnetic fields of outer planets can not penetrate to inner solar system due to the influence of solar wind.

(1)-RRB- and the WSO observations of the photospheric magnetic field in relation to the cycle phase, for solar cycles 21 — 24 as indicated in the legend.

In order to study if an underrepresentation of weak magnetic fields in the Carrington rotation synoptic charts is the explanation for the difference between our model and the observation, full - disk images with higher spatial and temporal resolution should be analyzed in future.

Information about the magnetic field evolution prior to the times of direct observations is determined in laboratory procedures from archeo - and paleomagnetic material.

On the basis of these observations we conclude that class I excursions, epitomized by the Laschamp Excursion, are more closely related to normal secular variation and are not necessarily a prelude to magnetic field reversal.»