Friday, February 25, 2011

Where Do You Find The Papers In Poptropica

Scoperte onde magnetiche vicino ai pori solari

The Sun is woven from a complex network of magnetic field lines that are responsible for a wide variety of attractive features, some of which are observable in its atmosphere.

Large dark regions, called "pore", which seem to holes on the surface of the Sun, mark out areas where the magnetic field goes deeper, bringing out even more hot material rising in the atmosphere then a one million temperaturadi degrees. The largest of these dark regions are called "sunspots" (solar spot) and have been known and studied as early as 364 BC
Led by Professor Robertus von Fay-Siebenburgen, Head of Solar Physics and Space Plasma Research Centre (SP2RC) at the University of Sheffield, the team studied a much smaller magnetic region of a sunspot, whose size, however, far exceeded that of the United Kingdom.

Their research, published in the Astrophysical Journal, showed that the observed pore, is able to channel the energy generated deep within the Sun along the field magnetic upper atmosphere.

The magnetic field emerging through the pore is greater than 1,000 times the Earth's magnetic field energy. The energy is delivered in a very particular form of waves, known as "sausage waves" ', which scientists were able to observe the solar observatory ROSA (Rapid Oscillation Atmospheric and Solar), which was designed by Queen's University Belfast and is operating at the Dunn Solar Telescope, Sacramento Peak in the USA.

This is the first direct observation of "waves of sausage on the solar surface. The magnetic
hole is known to increase and decrease in measuring the characteristics of these periodic waves sausage.
The team of experts, including Dr. Richard Morton at the University of Sheffield, as well as Professor Mihalis Mathioudakis and Dr. David Jess from Queen's University of Belfast, they hope that these giant magnetic holes have an important role in revealing unsolved secrets about the Sun's coronal heating

This is because the solar surface has a temperature of several thousand degrees, but the solar corona, the outermost, mysteriously, is heated to temperatures that are often thousands of times hotter surface.
The phenomenon of the temperature rise in the atmosphere of the Sun as you move farther from the center of energy production, which is located below the surface, is a great mystery of astrophysics. The results, which demonstrate the transfer of energy on a large scale, offer a new explanation for this puzzle.

The team now hopes to use the images provided by the sun rose for understanding the magnetic substructure of these huge holes and see what's inside of them. Professor Robertus von Fay
-Siebenburgen, said: "This is an exciting new discovery, in line with a series of discoveries in recent years by the team. It 's the first time that" the waves sausage were made with a detail like that. By analyzing these waves, we get closer and closer to understanding the physical mechanisms of the atmosphere stars.

Photo above: In this ultraviolet image, the gas at the photosphere is dark, indicating a temperature of thousands of degrees. While flowing above the photosphere, along the lines of the magnetic field, the gas is heated (somewhat) at temperatures of over a million degrees. emits ultraviolet radiation and X-ray

Arthur McPaul

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