If you have a new account but are having problems posting or verifying your account, please email us on hello@boards.ie for help. Thanks :)

Hello all! Please ensure that you are posting a new thread or question in the appropriate forum. The Feedback forum is overwhelmed with questions that are having to be moved elsewhere. If you need help to verify your account contact hello@boards.ie

Hi there,
There is an issue with role permissions that is being worked on at the moment.
If you are having trouble with access or permissions on regional forums please post here to get access: https://www.boards.ie/discussion/2058365403/you-do-not-have-permission-for-that#latest

Aurora found on Brown Dwarf

Capt'n Midnight · 2015-07-30 19:53:41

http://www.bbc.com/news/science-environment-33711161 Nature:http://www.nature.com/nature/journal/v523/n7562/full/nature14619.html Might provide clues as to atmospheric composition of other solar systems

30-07-2015 7:53pm

#1

Capt'n Midnight

Moderators, Recreation & Hobbies Moderators, Science, Health & Environment Moderators, Technology & Internet Moderators Posts: 93,593 Mod ✭✭✭✭

Join Date: March 2003

Posts: 91831

http://www.bbc.com/news/science-environment-33711161

An international team detected the light display around a brown dwarf about 18 light years away in the Lyra constellation.

They say the luminous glow looks like the northern lights, but is up to a million times brighter and more red than green in colour.
...
The dwarf's aurora is mainly red in colour because the charged particles are mainly interacting with hydrogen in its atmosphere. On Earth, the greenish glow is caused as the electrons from the Sun hit oxygen atoms.

Nature:http://www.nature.com/nature/journal/v523/n7562/full/nature14619.html

Might provide clues as to atmospheric composition of other solar systems

1