PDA

View Full Version : Galactic Black Hole Fires a Jet at a Nearby Neighbour



Fraser
2007-Dec-17, 11:00 PM
Ouch, that's going to leave a mark. A new photograph captured by NASA's Chandra X-Ray Observatory shows a powerful jet blasting out of one galaxy, and colliding with another. As the jet tears through the galaxy, it could have serious implications for planetary formation, and trigger a wave of new star formation.

More... (http://feeds.feedburner.com/~r/universetoday/pYdq/~3/201879353/)

Noclevername
2007-Dec-17, 11:58 PM
Pow! Right in the kisser!

How far away (from us) are they?

galacsi
2007-Dec-18, 10:48 AM
Hi

I have a question : What is this jet made of ? Protons ? Electrons ? Heavy ions or only gamma or X rays ?

Galacsi

jlhredshift
2007-Dec-18, 02:03 PM
The answer is yes . The particles are moving sublight, so somewhat trail the EM radiation.

The salient point here is the cooperation that occurred between different investigators and agencies to construct a description and image of what is happening. Big science indeed.

From Chandra website (http://chandra.harvard.edu/photo/2007/3c321/):

Each wavelength shows a different aspect of this system, known as 3C321. The Chandra X-ray image provides evidence that each galaxy contains a rapidly growing supermassive black hole at its center. Hubble's optical light images (orange) show the glow from the stars in each galaxy. A bright spot in the VLA and MERLIN radio image shows where the jet has struck the side of the galaxy - about 20,000 light years from the main galaxy - dissipating some of its energy. An even larger "hotspot" of radio emission detected by VLA (seen in an image with a much larger field-of-view) reveals that the jet terminates much farther away from the galaxy, at a distance of about 850,000 light years away. The Hubble UV image shows large quantities of warm and hot gas in the vicinity of the galaxies, indicating the supermassive black holes in both galaxies have had a violent past. Faint emission from Chandra, Hubble and Spitzer, not shown in this image, indicate that the galaxies are orbiting in a clockwise direction, implying that the companion galaxy is swinging into the path of the jet.

parallaxicality
2007-Dec-18, 07:04 PM
Wow. Sucks to be anyone living there. If that happened to us we wouldn't even have time to paint the placards.

Jetlack
2007-Dec-19, 12:09 PM
Wow. Sucks to be anyone living there. If that happened to us we wouldn't even have time to paint the placards.

I think it beats dying of a horrible disease or starving to death through a nuclear winter caused by a huge asteroid strike.

Not that i wanted to get morbid or anything...

JohnBStone
2007-Dec-19, 01:48 PM
When our galaxy and Andromeda mingle, will that happen here too?

IsaacKuo
2007-Dec-19, 03:08 PM
When our galaxy and Andromeda mingle, will that happen here too?

Probably not, but it's possible that a big infalling of mass into one of the two supermassive black holes in question will occur, and it's possible that this will result in a stupendous death beam aimed at the other galaxy.