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TOPIC: N103B

Blobrana

L

Posts: 131433

Date: Mar 30 20:27 2017

SNR 0509-68.7	Permalink

Search For Stellar Survivor of a Supernova Explosion Of all the varieties of exploding stars, the ones called Type Ia are perhaps the most intriguing. Their predictable brightness lets astronomers measure the expansion of the universe, which led to the discovery of dark energy. Yet the cause of these supernovae remains a mystery. Do they happen when two white dwarf stars collide? Or does a single white dwarf gorge on gases stolen from a companion star until bursting? Read more __________________

Blobrana

L

Posts: 131433

Date: Jun 4 16:05 2014

N103B	Permalink

New Suspect Identified in Supernova Explosion Supernovas are often thought of as the tremendous explosions that mark the ends of massive stars' lives. While this is true, not all supernovas occur in this fashion. A common supernova class, called Type Ia, involves the detonation of white dwarfs -- small, dense stars that are already dead. New results from NASA's Spitzer Space Telescope have revealed a rare example of Type Ia explosion, in which a dead star "fed" off an aging star like a cosmic zombie, triggering a blast. The results help researchers piece together how these powerful and diverse events occur. Read more __________________

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