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Question

Q. Which of the following statements correctly describes the term ‘Galactic Bulge’?

A
It is the resultant of nebular outgrowth due to the gravitational pull of the central star
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B
When a black hole flies pass by a newly created galaxy it results in shearing and bulge
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C
Galactic bulges represent the gravitational attraction of supergiants present in the periphery of the galaxies.
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D
It is a tightly packed group of stars within a galaxy as the central bright region
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Solution

The correct option is D It is a tightly packed group of stars within a galaxy as the central bright region

Explanation:

The central bright region at the core of a galaxy is called the “galactic bulge”. The term almost exclusively refers to the central group of stars present in most spiral galaxies. As we go closer to the center of our Milky Way galaxy, the distribution of stars becomes vertically thicker. This is not due to an actual thickening of the disk, but rather a sign of a different component of the galaxy - the galactic bulge.


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