- We have auroras on Earth. You might be familiar with the Northern Lights, for example. But to this point, auroras have only been spotted on planets. A brown dwarf is a small star that might be too small to maintain hydrogen fusion.
- To spot the aurora, scientists used a radio telescope to spot jump in radio waves caused by the star’s roatation, which led them to a pulsing bright spot. Tracking that brightness led the scientists to conclude they were looking at an aurora., which is believed to be caused by magnetic activity.
- From one of the study’s authors: “We are challenged by seeing objects that traditionally would have been classified as stars, but seem to be showing more and more properties that make them look like super-sized planets.
Aurora Suggests Brown Dwarves Are Huge Planets, Not Failed Stars
7. 29. 15 by Kif Leswing