Scientists have now made a major breakthrough in understanding this complexity by studying the ‘skeleton’ of the magnetic field. A team of scientists from St Andrew’s University will present the results on Monday 16 April at the Royal Astronomical Society National Astronomy Meeting in Preston. "It is the Sun's magnetic field that dominates the behaviour of the corona and determines its structure", said team member Andrew Haynes, “and our work is a key step forward in understanding its structure”.
Until now the complexity of the magnetic field has baffled solar scientists. Professor Eric Priest first proposed the concept of the solar skeleton in 1996. It consists of the key elements on which the complex shape of the magnetic field is built. "We realised", added Dr Clare Parnell, "that by constructing the skeleton of the field, we could unravel this complexity and hopefully determine how the corona is heated".
Dr Parnell and colleagues have managed to develop a computer experiment, which simulates the complex structure of the corona and have found that the coronal heating is focused in specific parts of the skeleton. "In future", she added, "we should be able to compare this type of analysis with dramatic new observations from the recently launched Hinode spacecraft and thereby really nail down the heating mechanism".
The work of the St Andrew’s team indicates that the solar skeleton changes continually and has a much richer structure than anyone imagined. Their work is a building block in astronomers’ efforts to better understand events such as the solar flares and coronal mass ejections that eject billions of tonnes of matter into space.
Smallest transistor worldwide switches current with a single atom in solid electrolyte
17.08.2018 | Karlsruher Institut für Technologie (KIT)
Protecting the power grid: Advanced plasma switch for more efficient transmission
17.08.2018 | DOE/Princeton Plasma Physics Laboratory
New design tool automatically creates nanostructure 3D-print templates for user-given colors
Scientists present work at prestigious SIGGRAPH conference
Most of the objects we see are colored by pigments, but using pigments has disadvantages: such colors can fade, industrial pigments are often toxic, and...
Scientists at the University of California, Los Angeles present new research on a curious cosmic phenomenon known as "whistlers" -- very low frequency packets...
Scientists develop first tool to use machine learning methods to compute flow around interactively designable 3D objects. Tool will be presented at this year’s prestigious SIGGRAPH conference.
When engineers or designers want to test the aerodynamic properties of the newly designed shape of a car, airplane, or other object, they would normally model...
Researchers from TU Graz and their industry partners have unveiled a world first: the prototype of a robot-controlled, high-speed combined charging system (CCS) for electric vehicles that enables series charging of cars in various parking positions.
Global demand for electric vehicles is forecast to rise sharply: by 2025, the number of new vehicle registrations is expected to reach 25 million per year....
Proteins must be folded correctly to fulfill their molecular functions in cells. Molecular assistants called chaperones help proteins exploit their inbuilt folding potential and reach the correct three-dimensional structure. Researchers at the Max Planck Institute of Biochemistry (MPIB) have demonstrated that actin, the most abundant protein in higher developed cells, does not have the inbuilt potential to fold and instead requires special assistance to fold into its active state. The chaperone TRiC uses a previously undescribed mechanism to perform actin folding. The study was recently published in the journal Cell.
Actin is the most abundant protein in highly developed cells and has diverse functions in processes like cell stabilization, cell division and muscle...
17.08.2018 | Event News
08.08.2018 | Event News
27.07.2018 | Event News
17.08.2018 | Physics and Astronomy
17.08.2018 | Information Technology
17.08.2018 | Life Sciences