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What are 3 characteristics of elliptical galaxies?
An elliptical galaxy has an elliptical shape, very little gas and dust, and is filled with old red stars that have random orbits in multiple planes. The stars in this type of galaxy group into a ball, rather than as disc-like spiral galaxies.
Which statements describe elliptical galaxies?
They typically contain very little gas and dust. Elliptical galaxies are galaxies where little or no gas and dust can be seen or found. The elliptical galaxies are the most commonly found galaxies.
What do elliptical galaxies not have?
Elliptical galaxies have shapes that range from completely round to oval. They are less common than spiral galaxies. Unlike spirals, elliptical galaxies usually contain little gas and dust and show very little organization or structure.
What is an elliptical galaxy described as?
Elliptical galaxies have a smooth ellipsoidal or spherical appearance, and they have far less structure than spiral galaxies do. Elliptical galaxies are typically found in galaxy clusters.
What are the 4 distinguishing characteristics of elliptical galaxies?
There are four distinguishing characteristics of the ellipticals: (a) they have much more random star motion than orderly rotational motion (star orbits are aligned in a wide range of angles and have a wide range of eccentricities); (b) they have very little dust and gas left between the stars; (c) this means that they
What causes elliptical galaxies?
Current thinking amongst astronomers is that most elliptical galaxies formed from the collisions and subsequent mergers of spiral galaxies.
Frequently Asked Questions
What is a top down scenario for giant elliptical galaxy formation?
The first asserts that massive elliptical galaxies formed in a single, rapid collapse of gas and dark matter, during which virtually all the gas was turned quickly into stars. Afterward the galaxies changed only slowly as the stars evolved. This is what astronomers call a “top-down” scenario.
Why are elliptical galaxies redder than spiral galaxies?
Spiral galaxies are hotbeds of star formation, but elliptical galaxies aren't nearly as prolific because they contain less gas and dust, which means fewer new (and brighter) stars are born. The existing stars inside an elliptical galaxy tend to be older, giving off more red light than younger stars.
Why do most elliptical galaxies look red?
Flexi Says: Elliptical galaxies appear red because they are filled with older, cooler stars that emit light more towards the red end of the spectrum. These galaxies have used up most of their gas and dust, so they are no longer forming many new, hot, blue stars.
FAQ
- Why are elliptical galaxies yellow-red in color?
- Elliptical galaxies are very old. They formed their stars a long time ago. With the gas and dust long since gone, there is no material left to make new stars. Without any young, blue stars, ellipticals look yellow-red in colour.
- What is not true about elliptical galaxies?
- Originally, Edwin Hubble hypothesized that elliptical galaxies evolved into spiral galaxies, which was later discovered to be false, although the accretion of gas and smaller galaxies may build a disk around a pre-existing ellipsoidal structure.
- What are 3 facts about the elliptical galaxy?
- More Than Spirals: Facts About Elliptical Galaxies
- They Are Largely Featureless.
- They Can Be the Biggest — or The Smallest.
- They're Harder to Spot Than Spiral Galaxies.
- They Might Form After a Collision.
- Yes, They Have Black Holes Too.
- They Tend to House Old Stars.
- They're Primarily Found in Clusters.
Which one of the following statements does not correctly describe typical elliptical galaxies?
| What do elliptical galaxies not contain? | Ellipticals are galaxies that appear ellipsoidal in form, have no disks, and are devoid of features such as spiral arms, bars, or dust lanes. |
| What is true about elliptical galaxies? | Elliptical galaxies have an even, ellipsoidal shape. They typically contain a much greater proportion of older stars than spiral galaxies do. Four classes are used to classify galaxies: spiral; barred spiral; elliptical and irregular. |
| What are the characteristics of elliptical galaxies? | Elliptical galaxies have a smooth ellipsoidal or spherical appearance, and they have far less structure than spiral galaxies do. Elliptical galaxies are typically found in galaxy clusters. |
- Which of the following statements is not characteristic of elliptical galaxies quizlet?
- Which of the following statements is not characteristic of elliptical galaxies? they have a disk and central bulge, but no spiral arms.
- Which of the following is not a property of elliptical galaxies?
- Which of the following is not a property of elliptical galaxies? They have prominent spiral arms.
- What are 2 facts about the elliptical galaxy?
- Elliptical galaxies have a broader range in size than other types of galaxies. The smallest are dwarf elliptical galaxies, which can be less than 10 percent of the size of the Milky Way. But ellipticals can also stretch to more than a million light-years across, and contain more than ten trillion stars.