Researchers from Northumbria University in Newcastle, England, trying to unpack the mystery of why the sun's outer suburbs are much hotter than the surface of the Sun.
A team led by Richard Morton and consists of a number of researchers from the University of Sheffield and Queen's University Belfast that using cutting-edge solar imaging technology.
They examined the wave magnetohydrodynamic (MHD) and using British-made solar imaging telescope called Rapid oscillations in the Solar Atmosphere (ROSA) to observe the chromosphere with a high degree of clarity. This tool is able to generate a number of chromosphere images in the highest resolution ever taken. That picture makes the research team to study the speed and power of the waves and counting amount of the transferred energy. The results of their calculations confirm that the MHD waves responsible for the delivery of energy from the surface of the sun towards the chromosphere to the corona, the outermost layer and the warming sun to millions of degrees.
"The sun is the closest star to us, and provide the opportunity to study in detail the nature of the star," says Morton. Stars generate heat through thermonuclear reactions in the core and, perilously close to the stellar surface, the temperature will decrease. Even so, many stars have higher temperatures in the outer suburban atmosphere than at the surface.
 |
| Scientists may be able to answer why the sun's corona is so much hotter than its surface. (Picture from: http://www.scienceworldreport.com/) |
They examined the wave magnetohydrodynamic (MHD) and using British-made solar imaging telescope called Rapid oscillations in the Solar Atmosphere (ROSA) to observe the chromosphere with a high degree of clarity. This tool is able to generate a number of chromosphere images in the highest resolution ever taken. That picture makes the research team to study the speed and power of the waves and counting amount of the transferred energy. The results of their calculations confirm that the MHD waves responsible for the delivery of energy from the surface of the sun towards the chromosphere to the corona, the outermost layer and the warming sun to millions of degrees.
"The sun is the closest star to us, and provide the opportunity to study in detail the nature of the star," says Morton. Stars generate heat through thermonuclear reactions in the core and, perilously close to the stellar surface, the temperature will decrease. Even so, many stars have higher temperatures in the outer suburban atmosphere than at the surface.
Observations using ROSA makes the research team to estimate the amount of energy transferred by magnetic waves. "Estimates reveal that the wave energy to meet energy. Needed to explain the increase in temperature in the corona," he said. *** [EKA | FROM VARIOUS SOURCES | SCIENCEDAILY | TJANDRA DEWI | KORAN TEMPO 4135]
Note: This blog can be accessed via your smart phone.
