Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Space tornadoes power the atmosphere of the Sun

28.06.2012
Mathematicians at the University of Sheffield, as part of an international team, have discovered tornadoes in space which could hold the key to power the atmosphere of the Sun to millions of kelvin.
The super tornadoes - which are thousands of times larger and more powerful than their earthly counterparts but which have a magnetic skeleton - spin at speeds of more than 6,000 mph at temperatures in millions of centigrade in the Sun’s atmosphere.

They are more than 1,000 miles wide – hundreds of miles longer than the total distance between Land’s End to John O’Groats. It is estimated that there are as many as 11,000 of these swirling events above the Sun’s surface at any time.

Applied mathematicians from the University of Sheffield (Professor Robertus Erdélyi –senior author, and Dr Viktor Fedun) collaborating with the University of Oslo in Norway (Drs Sven Wedemeyer-Böhm – first author, Eamon Scullion – a Sheffield ex-postgraduate, Luc Rouppe van de Voort), Kiepenheuer Institute for Solar Physics of Freiburg, Germany (Dr Oskar Steiner), and Uppsala University in Sweden (Jaime de la Cruz Rodriguez), say the solar tornadoes carry the energy from the energy reservoir below the Sun’s surface, called the convection zone, to the outer atmosphere in the form of magnetic waves.

Professor Robertus Erdélyi (a.k.a von Fáy-Siebenbürgen) Head of the Solar Physics and Space Plasma Research Centre (SP2RC) of the University of Sheffield’s School of Mathematics and Statistics, said: “If we understand how nature heats up magnetised plasmas, like in the tornadoes observed in the Sun, one day we may be able to use this process to develop the necessary technology and build devices on Earth that produce free, clean, green energy. Because of our collaborative research it looks an essential leap forward is made towards unveiling the secrets about a great and exciting problem in plasma-astrophysics and we are getting closer and closer to find a solution.

“We report here the discovery of ubiquitous magnetic solar tornadoes and their signature in the hottest areas of the Sun’s atmosphere where the temperature is a few millions of degree kelvin, about thousands of kilometres from the Sun’s surface. This is a major step in the field.”

Professor Robertus Erdélyi added: “One of the major problems in modern astrophysics is why the atmosphere of a star, like our own Sun, is considerably hotter than its surface? Imagine, that you climb a mountain, e.g. a monroe in the Scottish highlands, and it becomes hotter as you go higher and higher. Many scientists are researching how to “heat” the atmosphere above the surface of the Sun, or any other star.

Tornado facts:
The space tornadoes are very magnetic and they operate in plasma - Plasma is the forth known state of matter, beside solid, liquid and gas and makes around 99 per cent of the known matter of the Universe. The tornados act in a similar way to water does if you take the plug out of a full bath.

Wedemeyer-Böhm et al (2012)

“It is understood that the energy originates from below the Sun’s surface, but how this massive amount of energy travels up to the solar atmosphere surrounding it is a mystery. We believe we have found evidence in the form of rotating magnetic structures - solar tornadoes - that channel the necessary energy in the form of magnetic waves to heat the magnetised solar plasma. It is hoped that the process could be replicated here on Earth one day to energise plasma in tokamak that are believed to be a future device to produce completely clean energy.”

Scientists viewed the solar tornadoes in the outer atmosphere of the Sun, stretching thousands of miles from the giant star’s surface by using both satellite and ground-based telescopes. They then created 3D-layered seqence of images of the tornadoes and simulated their evolution with state-of-the-art numerical codes using the magnetic imprints detected by their high-resolution, cutting-edge telescopes.

Additonal information

For images and videos visit http://www.solartornado.info

The University of Sheffield

With nearly 25,000 students from 125 countries, the University of Sheffield is one of the UK’s leading and largest universities. A member of the Russell Group, it has a reputation for world-class teaching and research excellence across a wide range of disciplines. The University of Sheffield has been named University of the Year in the Times Higher Education Awards for its exceptional performance in research, teaching, access and business performance. In addition, the University has won four Queen’s Anniversary Prizes (1998, 2000, 2002, and 2007).

These prestigious awards recognise outstanding contributions by universities and colleges to the United Kingdom’s intellectual, economic, cultural and social life. Sheffield also boasts five Nobel Prize winners among former staff and students and many of its alumni have gone on to hold positions of great responsibility and influence around the world. The University’s research partners and clients include Boeing, Rolls Royce, Unilever, Boots, AstraZeneca, GSK, ICI, Slazenger, and many more household names, as well as UK and overseas government agencies and charitable foundations.

The University has well-established partnerships with a number of universities and major corporations, both in the UK and abroad. Its partnership with Leeds and York Universities in the White Rose Consortium has a combined research power greater than that of either Oxford or Cambridge.

Contact

For further information please contact:

Paul Mannion
Media Relations Officer
The University of Sheffield
0114 222 9851
P.f.mannion@sheffield.ac.uk

Professor Robertus Erdélyi
Head of the Solar Physics and Space Plasma Research Centre
0114 2223832
robertus@sheffield.ac.uk

Paul Mannion | EurekAlert!
Further information:
http://www.sheffield.ac.uk
http://www.sheffield.ac.uk/news/nr/super-space-tornadoes-magnetic-plasma-1.190654
http://www.solartornado.info

More articles from Physics and Astronomy:

nachricht The cascade to criticality
02.06.2020 | ETH Zurich Department of Physics

nachricht K-State study reveals asymmetry in spin directions of galaxies
02.06.2020 | Kansas State University

All articles from Physics and Astronomy >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: New measurement exacerbates old problem

Two prominent X-ray emission lines of highly charged iron have puzzled astrophysicists for decades: their measured and calculated brightness ratios always disagree. This hinders good determinations of plasma temperatures and densities. New, careful high-precision measurements, together with top-level calculations now exclude all hitherto proposed explanations for this discrepancy, and thus deepen the problem.

Hot astrophysical plasmas fill the intergalactic space, and brightly shine in stellar coronae, active galactic nuclei, and supernova remnants. They contain...

Im Focus: Biotechnology: Triggered by light, a novel way to switch on an enzyme

In living cells, enzymes drive biochemical metabolic processes enabling reactions to take place efficiently. It is this very ability which allows them to be used as catalysts in biotechnology, for example to create chemical products such as pharmaceutics. Researchers now identified an enzyme that, when illuminated with blue light, becomes catalytically active and initiates a reaction that was previously unknown in enzymatics. The study was published in "Nature Communications".

Enzymes: they are the central drivers for biochemical metabolic processes in every living cell, enabling reactions to take place efficiently. It is this very...

Im Focus: New double-contrast technique picks up small tumors on MRI

Early detection of tumors is extremely important in treating cancer. A new technique developed by researchers at the University of California, Davis offers a significant advance in using magnetic resonance imaging to pick out even very small tumors from normal tissue. The work is published May 25 in the journal Nature Nanotechnology.

researchers at the University of California, Davis offers a significant advance in using magnetic resonance imaging to pick out even very small tumors from...

Im Focus: I-call - When microimplants communicate with each other / Innovation driver digitization - "Smart Health“

Microelectronics as a key technology enables numerous innovations in the field of intelligent medical technology. The Fraunhofer Institute for Biomedical Engineering IBMT coordinates the BMBF cooperative project "I-call" realizing the first electronic system for ultrasound-based, safe and interference-resistant data transmission between implants in the human body.

When microelectronic systems are used for medical applications, they have to meet high requirements in terms of biocompatibility, reliability, energy...

Im Focus: When predictions of theoretical chemists become reality

Thomas Heine, Professor of Theoretical Chemistry at TU Dresden, together with his team, first predicted a topological 2D polymer in 2019. Only one year later, an international team led by Italian researchers was able to synthesize these materials and experimentally prove their topological properties. For the renowned journal Nature Materials, this was the occasion to invite Thomas Heine to a News and Views article, which was published this week. Under the title "Making 2D Topological Polymers a reality" Prof. Heine describes how his theory became a reality.

Ultrathin materials are extremely interesting as building blocks for next generation nano electronic devices, as it is much easier to make circuits and other...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Dresden Nexus Conference 2020: Same Time, Virtual Format, Registration Opened

19.05.2020 | Event News

Aachen Machine Tool Colloquium AWK'21 will take place on June 10 and 11, 2021

07.04.2020 | Event News

International Coral Reef Symposium in Bremen Postponed by a Year

06.04.2020 | Event News

 
Latest News

Perfect optics through light scattering

02.06.2020 | Power and Electrical Engineering

The digital construction site: A smarter way of building with mobile robots

02.06.2020 | Architecture and Construction

Process behind the organ-specific elimination of chromosomes in plants unveiled

02.06.2020 | Life Sciences

VideoLinks
Science & Research
Overview of more VideoLinks >>>