With which type of galaxy is a small galaxy most likely to merge? Select the two correct answers.(1 point) Responses a much larger galaxy a much larger galaxy an equal-sized galaxy an equal-sized galaxy a fast-moving galaxy a fast-moving galaxy a nearby galaxy
A small galaxy is most likely to merge with a much larger galaxy and a nearby galaxy.
Which characteristics are considered most typical of an old galaxy in decline?(1 point) Responses low gas content, little star formation low gas content, little star formation very bright, relatively small very bright, relatively small spiral, abundant planets present spiral, abundant planets present shrinking in size, high dust content
The characteristics considered most typical of an old galaxy in decline are:
- Low gas content
- Little star formation
Which factor is essential to the initial formation of galaxies, for either of the theories describing galaxy evolution?(1 point) Responses Massive gas and dust clouds collapse. Massive gas and dust clouds collapse. The force of orbiting stars generates collisions. The force of orbiting stars generates collisions. Gravity acts on existing material, shaping it into a new form. Gravity acts on existing material, shaping it into a new form. Small lumps of material merge into larger clumps.
The factor essential to the initial formation of galaxies, for either of the theories describing galaxy evolution, is "Massive gas and dust clouds collapse."
A small galaxy is most likely to merge with a much larger galaxy and/or a nearby galaxy.
To determine which type of galaxy a small galaxy is most likely to merge with, we need to understand the different types of galaxy mergers and the factors that affect their likelihood.
Galaxies can merge with different types of galaxies based on their size, relative velocities, and proximity. The most common types of galaxy mergers are:
1. Minor Mergers: These occur when a small galaxy merges with a much larger galaxy. In this scenario, the small galaxy is absorbed by the larger one.
2. Equal-sized Mergers: This type of merger occurs when two galaxies of approximately equal size merge together, resulting in the formation of a larger galaxy.
3. Fast-moving Galaxy Mergers: This refers to a scenario where a small galaxy merges with a fast-moving galaxy. The relative motion of the galaxies influences the merger process.
4. Nearby Galaxy Mergers: This type of merger happens when two galaxies in close proximity merge together.
Based on this information, we can determine that a small galaxy is most likely to merge with:
1. A much larger galaxy: In a minor merger, a small galaxy is absorbed by a much larger galaxy due to the gravitational pull exerted by the larger galaxy.
2. A nearby galaxy: The close proximity of galaxies increases the chances of a merger, as they are more likely to experience gravitational interactions.
Therefore, the correct answers would be:
- A much larger galaxy
- A nearby galaxy