Quote:
Originally Posted by CraigS
Not sure if anyone can elaborate on why the light is this way. See following link:
http://antwrp.gsfc.nasa.gov/apod/ap100809.html
(Nice photo of it, also).
More detailed explanation of the star, ('bullet'), which they think disrupted the matter, go to:
http://www.jpl.nasa.gov/news/news.cfm?release=2009-002
Very similar to our conversation today on the Science Forum about Hyper Velocity Stars. What we're seeing in this one seems to be what happens to normal matter when one of these bullets ploughs thru a bunch of stuff.
Cheers & Rgds. |
Mind you, Hyper Velocity Stars move at much greater speeds and are theorised to have a different ejection mechanism (or impulse).
From the post the other day (for comparative purposes):
RX J0822-4300, often referred to as a "Cosmic Cannonball = 723 km/sec;
Stars which make bullet-nosed bowshocks in nebulae = around 50 km/sec;
Typical 'young star' velocity = about 10 km/sec;
Light Speed = 300,000 km/sec.
Cheers