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Do you confirm, that the arm that is connected between the galaxies is all about stars & gas that are bonded by gravity force?
Yes, it's formed by gravitational attraction.
Calling it a "bond" isn't appropriate,
It's certainly not a stable situation, as the stars and dust would eventually settle in one galaxy or the other (or be thrown out by gravitational slingshoting).
Don't you see that those dots seems as a direct line?
So how can you explain that long lines of bright dots (clusters)?
Don't you agree that those clusters (with million stars in each cluster) are connected by gravity to each other?
How would you call that gravitational connections between the bright clusters of millions or billions stars?
What's wrong with gravity "bonding"?
So, why this free spiral arm forced itself to locate exactly in the opposite side of the "Gravitational Arm" in that lovely symmetrical structure - in BOTH galaxies?
Why all the billion stars and all the matter in the free spiral arm are not thrown out by gravitational slingshoting?
However, how can we explain that gravitational attraction in the free spiral arm and why all the billions stras there do not use the idea of gravitational slingshoting and find their way outwards from the spiral arm & the galaxy?
The stars and gas in one galaxy are falling towards the other due to gravity.
would you agree that an object on Earth should fall upward to the moon due to gravity?
Can you please explain how that "falling" mechanism works?
The star that is closed to galaxy A - is called star 1, while the other star that is close to galaxy B - is called star 2.Do you agree that the gravify force on star 1 due to galaxy A should be much stronger than Galaxy B?In the same token the gravify force on star 2 due to galaxy B should be much stronger than Galaxy A?
So how could it be that star 1 would "fall" in the direction of galaxy B (with less gravity force), while star 2 would "fall" in the direction to galaxy A (with less gravity force)?
Yes it does - it is called a "tide".- But the gravitational force of the Moon (1/80 the mass of the Earth, at a distance of almost 400,000km)- Is much less than the gravitational force of the Earth (at a distance of 6,300km)- So the ocean tide is pretty small (typically 1 or 2 meters around here)- And there is an equivalent tidal force on the far side of the Earth
And there is an equivalent tidal force on the far side of the Earth
tearing stars from both galaxies, and leaving a "luminous bridge" or "tidal tail" between them (NASA's words).
However, once one spiral arm had been frozen by gravity force to the other galaxy
Quote from: Dave Lev on 16/11/2022 04:32:13However, once one spiral arm had been frozen by gravity force to the other galaxyIt isn't. Gravity isn't freezing anything in place here. It's like saying something in free fall is frozen in place. It's not. This tidal tail is a temporary structure.
THANKSSo you fully confirm that one spiral arm which is connected to the other galaxy is due to gravitational attraction.
If so, how that bridge could rotate while the arms are connected to each other by gravity force?
Watch the video Origin posted.
At 0:16, it looks a lot like that galaxy pair you posted.
So the ocean tide is pretty small (typically 1 or 2 meters around here)
Do you have an idea which kind of theories they have used to form this simulation?
Quote from: Dave Lev on 17/11/2022 06:37:55Do you have an idea which kind of theories they have used to form this simulation?Yes, the science community refers to this phenomena as gravity.
How gravity by itself between two massive spiral galaxies could restructure the billion stars in those complex spiral galaxies into a dual arm galaxy and keep this structure for so long time?
Did they also use the idea of the density wave?
I don't understand your question.