Who was the first person to classify galaxies?
What describes an elliptical galaxy?
Which accurately describes an elliptical galaxy?
What is the origin of the elliptical galaxies?
How do elliptical galaxies get so large?
This suggests that the innermost regions of giant elliptical galaxies - and presumably their black holes - formed very quickly and very early, at z~8 or so, with star formation and accretion slowly building up the rest of the galaxy over time.— Pieter van Dokkum (@DokkumPieter) May 30, 2023
What are giant elliptical galaxies come from?
Frequently Asked Questions
Can life exist in an elliptical galaxy?
Which factor suggests that an elliptical galaxy will form?
What are 3 characteristics of elliptical galaxies?
How do giant elliptical galaxies form?
What do we think is the most likely cause of elliptical galaxies?
- What is believed to be the origin of starburst galaxies?
- The most popular theory for the cause of a starburst is that it is triggered by a close encounter or collision with another galaxy. This collision sends shock waves rushing through the galaxy. These shock waves push on giant clouds of gas and dust, causing them to collapse and form a few hundred stars.
- What makes up elliptical galaxy?
- Elliptical galaxies are made up of mostly old stars, and do not have much gas and dust. There is very little new star formation in these galaxies. Elliptical galaxies also come in many sizes. The largest galaxies we see are ellipticals, but, elliptical galaxies can also be small.
- Why do we see more elliptical galaxies in clusters and more spiral galaxies in the field?
- In the first class, the proportion of galaxy types is set by the conditions when the galaxies form, and once the galaxies form they do not alter their morphology. Thus, in regions that are or will become regular clusters, more ellipticals are formed.
- Are elliptical galaxies more likely to be found in clusters than spiral galaxies?
- Four classes are used to classify galaxies: spiral; barred spiral; elliptical and irregular. 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 factors contributed to the formation of elliptical galaxies
|What are the reasons an elliptical galaxy might form instead of a spiral galaxy?
|When two spirals collide, they lose their familiar shape, morphing into the less-structured elliptical galaxies. A supermassive black hole is thought to lie at the center of these ancient galaxies. These gluttonous giants consume gas and dust, and may play a role in the slower growth of elliptical galaxies.
|Do elliptical galaxies vary more in shape than spiral galaxies?
|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.
|Why do elliptical galaxies tend to appear more yellow red than spiral galaxies?
|Ellipticals tend to be redder in color than spiral galaxies because they primarily have older stars; most do not have enough gas and dust to form new stars.
|How are irregular galaxies held together?
|Galaxies are vast cosmic islands of stars, gas, dust, and dark matter held together by gravity. Hubble's keen eye has revealed intricate details of the shapes, structures, and histories of galaxies — whether alone, as part of small groups, or within immense clusters.
- How is a galaxy held together?
- A galaxy is a giant, spinning object made of gas, dust, and stars held together by gravity. Galaxies come in different shapes and sizes and can contain billions of stars. Most occur in groups that are also held together by gravity.
- What is one likely way for elliptical galaxies to form?
- Scientists think elliptical galaxies originate from collisions and mergers with spirals.
- What is the structure of the 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 is not a feature of the elliptical galaxies
- ... these is NOT a characteristic of elliptical galaxies? stellar orbits go in all direction. which of these is NOT a characteristic of spiral galaxies? the