A global group of scientists has actually utilized information from NASA’ s Solar Dynamic Observatory to find a new kind of surge in the solar corona, the environment of the Sun. The remarkable occasion is called a forced magnetic reconnection and might assist discuss why the corona is numerous times hotter than the surface area of the Sun.
As reported in The Astrophysical Journal , observations in May 2012 revealed appeared product from the surface area of the Sun, a so-called prominence, knocking into magnetic lines. The interactions triggered a significant adjustment of the twisted electromagnetic field lines, launching energy extremely rapidly and triggering a surge.
The adjustment of field lines is a studied included of the Sun and it is referred to as magnetic reconnection. Prior to this research study, scientists had no proof recommending that it might be required by a solar eruption.
“ This was the very first observation of an external motorist of magnetic reconnection, ” lead author Abhishek Srivastava, a solar researcher at the Indian Institute of Technology (BHU) stated in a declaration . “ This might be extremely beneficial for comprehending other systems. Earth’ s and planetary magnetospheres, other allured plasma sources, consisting of experiments at lab scales where plasma is really difficult and extremely diffusive to manage. ”
The spontaneous magnetic reconnection needs extremely particular conditions, however the required one seems less stringent so they can occur more frequently, considered that there is something to provide the product. In this case, a solar eruption to launch the product in the very first location, however the group believes that other solar eruptions such as flares and coronal mass ejections might be similarly reliable in requiring magnetic reconnection.
“ Our idea is that required reconnection is all over, ” Srivastava included. “ But we need to continue to observe it, to measure it, if we wish to show that.”
Forced magnetic reconnections warm up product to heats more effectively than the spontaneous equivalent. For this factor, the solar researchers think it may have something to do with the secret of the corona temperature level. The surface area of the Sun has a temperature level of around 5,499° C( 9,930 ° F) however the corona is over 1 million ° C (1.8 million ° F).
NASA’ s Parker Solar Probe and the upcoming European Solar Orbiter will supply much more information to address the secret of how the corona gets warmed.