Quick Answer: What Happens When Two Spiral Galaxies Collide?

What happens when two black holes collide?

When two black holes spiral around each other and ultimately collide, they send out gravitational waves – ripples in space and time that can be detected with extremely sensitive instruments on Earth.


What happens when two spiral galaxies collide quizlet?

when two spiral galaxies collide they form a elliptical galaxy. a spiral galaxy alone is neat and orderly, when two orderly galaxies collide they form a messy tangled galaxy which is an elliptical galaxy. … This can cause galaxies to become distorted or even rip apart.

Do galaxies die?

In time, any given galaxy begins to run out of recyclable gas. Without gas, it can’t form new stars; the old stars live out their lives and die, and eventually the galaxy dies too. … The galaxies breathe gas in and out, and their stars burn until their gas is gone. Within a galaxy, relatively dense gases fuel star birth.

Why do spiral galaxies rotate?

Astronomers sometimes call this the “wind-up problem” of the spiral arms. It has been observed that the inner parts of galaxies rotate faster than the outer parts. … The idea is that the entire disk of a galaxy is filled with material. As this density wave passes through, it’s thought to trigger bursts of star formation.

What will happen if 2 galaxies collide?

The Milky Way galaxy and the Andromeda galaxy are moving towards each other on a collision course. … Instead, as galaxies collide, new stars are formed as gasses combine, both galaxies lose their shape, and the two galaxies create a new supergalaxy that is elliptical.

What does a galaxy’s rotation curve tell us about its total mass?

The rotation curve tells you the amount of mass inside a given distance from the center. You find how the mass is distributed in the Galaxy by looking at how the amount of enclosed mass changes with the size of the orbits.

Will we die when Andromeda collides?

Four billion years from now, our galaxy, the Milky Way, will collide with our large spiraled neighbor, Andromeda. The galaxies as we know them will not survive. In fact, our solar system is going to outlive our galaxy. … Currently, Andromeda and the Milky Way are about 2.5 million light-years apart.

What is the biggest thing in the universe?

The biggest supercluster known in the universe is the Hercules-Corona Borealis Great Wall. It was first reported in 2013 and has been studied several times. It’s so big that light takes about 10 billion years to move across the structure. For perspective, the universe is only 13.8 billion years old.

Where does space end?

No, they don’t believe there’s an end to space. However, we can only see a certain volume of all that’s out there. Since the universe is 13.8 billion years old, light from a galaxy more than 13.8 billion light-years away hasn’t had time to reach us yet, so we have no way of knowing such a galaxy exists.

When two galaxies collide what happens to their stars quizlet?

When two galaxies collide, what happens to their stars? Nothing happens to them, except that their orbits may change. Why are galaxy collisions of interest?

Why does the rotation curve of a spiral galaxy?

Why does the rotation curve of a spiral galaxy increase with increasing distance near the galaxy’s center? The encircled mass increases so fast that gravity increases with radius. … The stellar mass distribution does not account for the rotation curve of galaxies.

What do rotation curves for spiral galaxies show?

The rotation curve of a galaxy shows how the velocity of stars around the center varies as the distance from the center increases. Most spiral galaxies show flat rotation curves out as far as we can trace them, even where no more stars are visible.

Do galaxies collapse?

Yes, given just the right kind of “everything”. For example, if your physical system is a completely motionless 1 sphere of Helium gas sitting in empty space, then it will collapse under its own self-gravity towards the center of the sphere. However, you can’t say the same thing about a spiral galaxy.

What will happen when the Milky Way collides with the Andromeda Galaxy?

The Milky Way is on track to collide and merge with its nearest neighbor, the Andromeda galaxy, in about 4 billion years. The galaxies will pass through each other, get snapped back together by gravity, and eventually merge cores. NASA illustrations show what the arrival of an entire galaxy of stars will look like.

Do stars collide when galaxies merge?

Although stars don’t collide when two galaxies merge, the much larger gas clouds do. … Shock waves from the collision run through the clouds and trigger the collapse of dark nebulae to form stars. Thus, if the two colliding galaxies are rich in gas, their merger will be accompanied by a burst of star formation.