Sun's mood swings not so strange after all, say scientists
July 17, 2017, 9:40:02 CEST | Wikinews

The Sun has long been known to go through eleven-year cycles of high and low activity, including sunspots, which Strugarek likened to solar volcanoes. As the magnetic disruption from a sunspot approaches Earth, it can intensify the Aurora Borealis and Australis but it also dings the performance of satellites and power grids. During these periods, the sun's magnetic poles flip. A hypothetical heat-proof compass at the surface of the Sun would point toward one pole during one eleven-year period but toward the other during the next.

To predict and explain this activity, Strugarek and colleagues developed a model of the plasma, high-energy matter, inside the sun and examined how its flow and change could create magnetic fields. To build this model, they incorporated data from at least 25 different stars.

They found the Sun operated on the same basic principles as other stars: The activity of all stars in the system was found to be driven by their luminosity, their rotation, and nothing else. The luminosity and rotation are used together to determine a star's Rossby number, relating to plasma flow. The smaller the Rossby number, the less active the star was with respect to magnetic changes.

Source: Wikinews
Share this article:
share article on facebook share article on twitter share article on google+ share article on tumblr share article on blogger share article on reddit

Send us your articles and web-novels!
comments powered by Disqus
Most popular


Recently Viewed:


Sun's mood swings not so strange after all, say scie...

The Sun has long been known to go through eleven-year cycles of high and low activity, inclu...


Former Irish footballer Liam Miller dies at 36

Monday, February 12, 2018  Obituaries   12 February 2018: Former Irish footballer Lia...


Pakistan court sentences one man to death penalty, a...

Saturday, February 10, 2018  Crime and law Related articles 10 February 2018: Pakistan c...


United States: Emergency calls from Great Mills High...

Friday, March 30, 2018  United States Related articles 30 March 2018: United States: Emer...


Uber London to lose operator licence after September

Monday, September 25, 2017  United Kingdom Related articles 20 August 2017: New South Wa...

Automotive
Reviews | Technology | Projects & Tuning | Events | Racing
Business & Technology
Business & Economy | Mobile | Internet & Media | Security & Privacy | Gadgets & Tech | Software
Lifestyle
Health, Food & Fitness | Fashion | Gardening | DIY | Homes
Society
Accidents | Crime | Culture | Finance | Politics
Science & Environment
Wildlife | Green | Space
Gaming
Reviews
Society
Accidents | Crime | Culture | Finance | Politics
Travel
MM-iNEWS
Copyright & Privacy | Site Roadmap | Sitemap | Contact
Web Development @ OverHertz Ltd
Ω