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M83 The Southern pinwheel Galaxy From VLT
Posted: Tue Dec 20, 2005 4:24 am
by orin stepanek
http://antwrp.gsfc.nasa.gov/apod/ap051218.html
I noticed the greater population of stars seem to be away from the core of the galaxy. Is this the case or are the stars within the center camouflaged due to the abundant light in the core? Comments please!!!
Orin
Posted: Tue Dec 20, 2005 9:04 am
by harry
Hello Orin
Look at
http://antwrp.gsfc.nasa.gov/apod/ap011106.html
The Centre is extremely busy. It may have two large Black Holes and many small ones.
The total mass of this image centre is greater than the rest of the galaxy.
Posted: Tue Dec 20, 2005 1:16 pm
by orin stepanek
That's a very good view. Thanks Harry!
Orin
Re: M83 The Southern pinwheel Galaxy From VLT
Posted: Tue Dec 20, 2005 1:17 pm
by Empeda2
orin stepanek wrote:http://antwrp.gsfc.nasa.gov/apod/ap051218.html
I noticed the greater population of stars seem to be away from the core of the galaxy. Is this the case or are the stars within the center camouflaged due to the abundant light in the core? Comments please!!!
Orin
The core seems like one like source because the stars are compacted so much more than the rest of the galaxy.
The core is much denser.
Posted: Tue Dec 20, 2005 1:20 pm
by orin stepanek
Thank you also Empedia!
Orin
Posted: Fri Dec 23, 2005 10:53 am
by harry
Can someone tell me how dense a core can get.
I can estimate it I think
Posted: Fri Dec 23, 2005 12:35 pm
by Empeda2
A core of a galaxy? Depends on the galaxy I suppose...
One thing to note is that even at the centres of galaxies where the density is much greater, the ratio of the space between the stars and the stars themselves is still huge..... even when galaxies merge core on core it is still highly unlikely that two stars will collide....
Posted: Fri Dec 23, 2005 11:28 pm
by harry
Although the space is great between the stars.
When two galaxies collide the chances increase for star collision.
In time all will be sucked into the Black Holes.