Why Is the Sun’s Corona So Hot? – SciShow


I hear the Sun is pretty hot. It is also a complicated thing. So why is the Corona so hot? This video from the folks at SciShow explain why. Interesting stuff! Still not as hot as this GIF of Nina Agdal though. You’re welcome, Science.

 

From Youtube:

 

The Sun’s corona is hotter than its surface, but where do scientists think such immense heat comes from?

Thumbnail Credit: USGS Bee Inventory and Monitoring Lab
https://commons.wikimedia.org/wiki/File:Apis_mellifera,_Queen,_side,_MD,_Talbot_County_2013-09-30-17.45.51_ZS_PMax.jpg

Hosted by: Reid Reimers

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Sources:

http://www.tunl.duke.edu/~ticesty/eclipse_2017/scientificamerican1973-68.pdf
https://www.nature.com/nature/journal/v475/n7357/pdf/nature10235.pdf
http://www.nature.com/nature/journal/v493/n7433/full/nature11772.html
http://science.sciencemag.org/content/sci/331/6013/55.full.pdf
https://sppgway.jhuapl.edu/instruments
https://www.cfa.harvard.edu/sweap/
https://link.springer.com/content/pdf/10.1007%2Fs11214-015-0206-3.pdf
http://rsta.royalsocietypublishing.org/content/roypta/373/2042/20140269.full.pdf
https://arxiv.org/pdf/1703.05707.pdf
http://iopscience.iop.org/article/10.1088/0741-3335/33/6/001/pdf
https://www.aanda.org/articles/aa/abs/2017/05/aa30059-16/aa30059-16.html
https://www.researchgate.net/profile/Heinz_Isliker/publication/301836680_A_data_driven_kinetic_approach_to_coronal_heating/links/5734f88008ae298602df07e1/A-data-driven-kinetic-approach-to-coronal-heating.pdf
https://www.aanda.org/articles/aa/pdf/forth/aa30748-17.pdf
https://arxiv.org/abs/1701.00795

Images:

https://commons.wikimedia.org/wiki/File:Sun_poster.svg
https://commons.wikimedia.org/wiki/File:Transition-region.jpg
https://commons.wikimedia.org/wiki/File:Solar_Probe_Plus_spacecraft_on_approach_to_the_sun.jpg
https://en.wikipedia.org/wiki/File:Arcing_Active_Region.jpg

source