Editing Astronomical radio source (section)

===Jupiter===
[[File:Jupiter's Magnetosphere animation.png|thumb|Magnetosphere of Jupiter]]
Oscillation of electrons trapped in the  [[magnetosphere of Jupiter]] produce strong radio signals, particularly bright in the decimeter band.

The magnetosphere of Jupiter is responsible for intense episodes of radio emission from the planet's polar regions. Volcanic activity on Jupiter's moon [[Io (moon)|Io]] injects gas into Jupiter's magnetosphere, producing a torus of particles about the planet. As Io moves through this torus, the interaction generates [[Alfvén wave]]s that carry ionized matter into the polar regions of Jupiter. As a result, radio waves are generated through a [[cyclotron]] [[Astrophysical maser|maser mechanism]], and the energy is transmitted out along a cone-shaped surface. When Earth intersects this cone, the radio emissions from Jupiter can exceed the solar radio output.<ref>{{cite web |date=February 20, 2004 |url=https://science.nasa.gov/science-news/science-at-nasa/2004/20feb_radiostorms |title=Radio Storms on Jupiter |publisher=[[NASA]] |access-date=August 23, 2017 |archive-date=May 16, 2017 |archive-url=https://web.archive.org/web/20170516195522/https://science.nasa.gov/science-news/science-at-nasa/2004/20feb_radiostorms |url-status=live }} ([https://web.archive.org/web/20070213220639/https://science.nasa.gov/headlines/y2004/20feb_radiostorms.htm archived version])</ref>