When Galaxies Collide ???

I cut the picture of the Cartwheel galaxy out of a magazine,and it sits
upon my desk.(awesome) The magazine article had this. "This galaxy
had a face on collision with a dwarf galaxy" That the collision created
shock waves that passed through the spiral,and spread out like ripples
on a lake to form the glowing ring at the galaxy's edge. Did I not read
many a post here in our group that when galaxies collide very little
happens?? Hmmmm The Cartwheel galaxy shows us a lot can happen. I'm
thinking its very bright center is made up of two black holes.that are
controlling the vast amount of stars that make up its ring.
Looking closely at its bright core I see two bright rings very close
together. The outer one is revolving very fast around the center one.
(two black holes) This gives me a clue that these two galaxies collided
very recently. I get an idea that most of the stars in this galaxy are
very dense.(because of the great shock wave,and two massive black holes
creating this action. The galaxies revolving outer edge show
stars that are also very close together,so close I can visualize
millions of stars colliding.Reason is the ring is much to bright.
Well Knowing me tells I love pictures that are hard to take. That is
one of the reasons for framing the Cartwheel galaxy. A picture is worth
a 1,000 words. It freezes spacetime so we can hold it in front of our
eyes,and not only see but also study the event Bert .

When two spiral galaxies collide you get a giant elliptical galaxy.(like
M87) That tells me that spiral galaxies are younger than elliptical.
M87 is mind boggling for it is indeed a giant having a mass of
more than a trillion Suns If I had to pick a galaxy with life you
have to go with M87. Nature sure deals in big numbers. Lots of
reasons how gravity can make galaxies with different shapes,but I like
my spiral Milky Way shape the best,and I even don't mind being situated
in left field. Bert

(G=EMC^2 Glazier) wrote in
:

I cut the picture of the Cartwheel galaxy out of a magazine,and it
sits
upon my desk.(awesome) The magazine article had this. "This
galaxy had a face on collision with a dwarf galaxy" That the collision
created shock waves that passed through the spiral,and spread out like
ripples on a lake to form the glowing ring at the galaxy's edge. Did
I not read many a post here in our group that when galaxies collide
very little happens?? Hmmmm The Cartwheel galaxy shows us a lot
can happen. I'm thinking its very bright center is made up of two
black holes.that are controlling the vast amount of stars that make up
its ring.

You don't even need a collision to kick off considerable disturbance.
See this pictu

http://www.sky-watch.com/gallery/hubble.html

However individual stars wont generally come to any actual harm. Though
some can get their orbit perturbed to an extent where they can get
thrown out into intergalactic space.

Looking closely at its bright core I see two bright rings very close
together. The outer one is revolving very fast around the center one.
(two black holes) This gives me a clue that these two galaxies
collided very recently. I get an idea that most of the stars in this
galaxy are very dense.(because of the great shock wave,and two massive
black holes creating this action. The galaxies revolving outer
edge show stars that are also very close together,so close I can
visualize millions of stars colliding.

No stars are colliding. The collisons are occuring between gas and dust
clouds. This causes shock waves that trigger formation of new stars. It
is the new stars that are the cause of the bright ring you see.

Klazmon.


Reason is the ring is much to bright.
Well Knowing me tells I love pictures that are hard to take. That is
one of the reasons for framing the Cartwheel galaxy. A picture is
worth a 1,000 words. It freezes spacetime so we can hold it in front
of our eyes,and not only see but also study the event Bert .

Hi klazmon Thanks for that great picture. Close tidal force of gravity
from the outside can do the same damage as two galaxies immerging. Now
that NASA is going to fly the shuttles again their last final act should
be to save the Hubble. Bert