Galactic arms may be transitory.

[kaneda]

Sun may have been thrown far from its birthplace.



http://space.newscientist.com/article/dn14749-sun-may-have-been-thrown-far-from-its-birthplace.html

[common_sense_seeker]

I wish to mention that I believe DM exists in the center of stars. I have also deduced that the fundamental particle doesn't emit gravity particles in all directions. This would mean that DM's gravitational influence could have a directional component.

[DwayneD.L.Rabon]

Well it actually interesting,
given the suggestion from the article i assume that it is very posibble that the galatic arm could speed up at any time and are local group of stars would be reunited with the galaxtic arm.
So it also appears that are solar systems position just out side of the galaxtic arm is just a osscilation of the galaxtic arm.
I guess we must be lucky because we can actually see out side of the galaxtic arm to conduct assumations of astronomy, if we where in side of the galaxtic arm or in any closer range the skys or stars would be clouded from our view due to interstellar gases.

I guess also that from the assumation of the article we can assume that are star group has lost a lot of hydorgen, gases and material from interplanetary space within our solar system. more so than if we where just a stargroup orbiting the galaxtic arm.


DwayneD.L.Rabon

[EndLightEnd]

So is that suggesting oscillation where our distance to the galactic center changes dramatically? Or still on our way out?

[DwayneD.L.Rabon]

Well in my refference i am talking about the motion of the galatic arm to speed up and slow down.
Where in the motion of the arm around the galaxy, it at times speeds up and at other times slows down. when it beings to slow down some star material will still be traveling at a faster motion and so appear seprate from the main spiral of the galatic arm (this residue effect would also happen when the arm speeds up).
This motion is not nessacary inward or outward but along side of the galatic arm, but overall the increased speed of the arm or slowing down of the sprial arm of the galaxy is a result of the inward rate of induction.

So in end the speeding up and slowing down of the galatix arm appears as a osscilation as it happens repeatlyas a cycle.


DwayneD.L.Rabon

[kaneda]

It is tempting to think that our snapshot view of any spiral galaxy is exactly the same view we would have seen several billion years ago but this may not be so. The idea that DM holds a galaxy into a set shape would be wrong too.

[common_sense_seeker]

I thought that the transient nature of the spiral shape of a galaxy was common knowledge nowadays. I believe DM is stronger about a star's ecliptic, which maintains the general disc shape of a galaxy over billions of years. If galaxies collide then this would obviously complicate the issue.