View Full Version : New Kind of “Runt” Supernovae Could be Lurking Unseen

2013-Mar-26, 06:10 PM
Imagine this “Death from the Skies” scenario; a tiny supernova lurks unseen near our Sun. Astronomers from the Harvard-Smithsonian Center for Astrophysics (CfA) announced the discovery of just such an object today and while it is not nearby, this new kind of supernova is so faint it has been hiding in the shadows. (...)Read the [...]

More... (http://www.universetoday.com/101005/new-kind-of-runt-supernovae-could-be-lurking-unseen/)

2013-Mar-27, 11:41 AM
Well I don't understand. This mini Supernova looks very much like a regular Nova to me. What is the difference ?

Edit :For info this link to wikipedia explains what is a nova : http://en.wikipedia.org/wiki/Nova

2013-Mar-27, 02:31 PM
Good question. The article fails to describe anything that would set it apart from a helium nova. I think the difference is that it's not just a helium shell burning, but some of the carbon and oxygen of the white dwarf ignites as well, it just doesn't start a runaway reaction that destroys the star.