What is it called when two galaxies collide?
Galaxy mergers can occur when two (or more) galaxies collide. They are the most violent type of galaxy interaction. The gravitational interactions between galaxies and the friction between the gas and dust have major effects on the galaxies involved.
What happens when two clusters of galaxies collide?
If the interaction takes place between two galaxies of different sizes, the larger object normally draws the small one into a long arc, extending it like taffy being pulled apart. The large object is relatively unaffected. More interesting, however, are mergers between galaxies of similar sizes.
What happens when galaxies collide quizlet?
The collisions can cause bursts of star formation, excess supernovae, new neutron stars and black holes, and other high-energy events. 5. In some cases colliding galaxies will merge together to form a single, larger galaxy.
What is the space between galaxies called?
Intergalactic space is more than just an empty void. ( The vast voids between galaxies can stretch millions of light-years across and may appear empty. But these spaces actually contain more matter than the galaxies themselves.
When galaxies collide What is the most likely outcome?
When two galaxies are merging, the star formation rate ramps up to 10 times its normal pace. In a cosmic flash, billions of new stars are born. For a brief moment, astronomically speaking, the merged galaxy will be brighter than ever before.
Why are collisions between galaxies common but collisions between stars rare?
We expect collisions between galaxies to be relatively common (while star-star collisions are rare) because the typical distance between galaxies is comparable in scale to the size of the galaxies themselves.
What causes galaxies to collide?
Gravitational Collisions: This is often the result of a galaxies drifting too close to one another, to the point where the gravity of the satellite galaxy will attract one of the giant galaxy’s primary spiral arms. In other cases, the path of the satellite galaxy may cause it to intersect with the giant galaxy.
Why are collisions between galaxies common but collisions between stars rare quizlet?
When galaxies collide what happens in general to the nebulae of gas and dust contained within them?
When galaxies collide, what happens in general to the nebulae of gas and dust contained within them? Many of them collide head-on with nebulae in the other galaxy, causing large-scale star formation.
Are there barriers between galaxies?
In Star Trek, the galactic barrier is an energy field composed of negative energy surrounding the rim of the Milky Way Galaxy. It appears as a purple/pink band of energy. No form of transmission can penetrate the barrier.
How are galaxies separated?
Most of the galaxies are 1,000 to 100,000 parsecs in diameter (approximately 3,000 to 300,000 light years) and are separated by distances on the order of millions of parsecs (or megaparsecs).
Why are collisions between galaxies more likely?
Why are collisions between galaxies more likely than collisions between stars within a galaxy? Relative to their sizes, galaxies are closer together than stars.
Why should galaxy collisions have been more common in the past?
The observed features of the starburst are thought to be caused by the presence of a supermassive black hole in the galaxy’s center. Why should galaxy collisions have been more common in the past than they are today? Galaxies were closer together in the past because the universe was smaller. A quasar’s spectrum is hugely redshifted.
What causes spiral galaxies to form stars?
cause the gas and dust clouds to collide, leading to rapid star formation. What is true of spiral galaxies? Select one: A. They have never been seen to have large redshifts.
How rare is a merger between two galaxies?
They are relatively rare in regions of high galaxy density. They are relatively rare in regions of high galaxy density. A merger between two large galaxies of comparable size will most likely produce: Select one: A. a small elliptical galaxy and a large spiral galaxy. B. two small elliptical galaxies. C. a large elliptical galaxy.
What happens when dark matter and gas move in a galaxy?
A. The gas stays with the luminous matter, but the dark matter moves on. B. Both the dark matter and gas continue their motion, leaving behind the luminous portions of the galaxies.