What Forces Shape Bar-Centered Galaxies?

In summary, the conversation discusses galaxies with bar style centers, specifically the SBa, SBb, and SBc styles. These galaxies are similar to spiral galaxies and have a familiar structure like a hurricane. The participants also mention the forces acting on these galaxies and inquire about data on velocity and density distributions, as well as the spectrum distribution of these galaxies. The conversation concludes with a mention of the potential usefulness of studying the stars' spectrum and calculating the galaxy's mass for understanding its origin.
  • #1
physalpha
30
0
Some of galalxies have bar style center.
Very mysterious.
The origin?
The galaxies are SBa, SBb and SBc style.
Spiral galaxies are familiar to us. it seems like hurricane.
What kinds of force act on bar centered galaxies?
 
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  • #2
Are there any data about the velocity distribution from the center to the edgy, or the density distribution in the Universe, or the spectrum distribution about those galaxies?
The detail stars spectrum of one of that kind of galaxies would be very useful to know the origin, I think. And calculated galaxy mass.
 

FAQ: What Forces Shape Bar-Centered Galaxies?

1. What is a bar centered galaxy?

A bar centered galaxy is a type of galaxy that has a distinct elongated bar structure at its center. This bar is made up of stars, gas, and dust, and acts as a bridge between the galaxy's spiral arms.

2. How do bar centered galaxies form?

The exact process of bar formation is still not fully understood, but it is believed that interactions between galaxies, such as mergers or tidal forces, can trigger the formation of a bar. It is also possible that the bar forms naturally as the galaxy evolves.

3. Are there different types of bar centered galaxies?

Yes, there are two main types of bar centered galaxies: barred spiral galaxies and barred lenticular galaxies. Barred spiral galaxies have a bar structure in the center of their spiral arms, while barred lenticular galaxies have a bar structure without defined spiral arms.

4. Do all galaxies have a bar structure?

No, not all galaxies have a bar structure. It is estimated that about two-thirds of spiral galaxies have a bar, while the rest do not. Lenticular and elliptical galaxies typically do not have a bar structure.

5. What is the significance of studying bar centered galaxies?

Studying bar centered galaxies can give us insights into the formation and evolution of galaxies. They can also help us understand the dynamics and structure of spiral galaxies, as well as the role of bars in shaping their morphology. Additionally, studying bar centered galaxies can also provide information about the distribution and movement of stars and gas within these galaxies.

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