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What does the type of stars found in halo and bulge indicate?
The fact that the halo and bulge are made exclusively of old stars mean that those parts of the galaxy formed first and are filled with old stars
How are stars in the disk of the milky way different from stars in the bulge or halo?
The ones in the bulge or halo are older star, the ones in the disk are younger.
Name four different objects you can find in our galaxy?
A galaxy contains stars, gas and dust. In a spiral galaxy like the Milky Way, the stars, gas, and dust are organized into a "bulge," a "disk" containing "spiral arms," and a "halo." Elliptical galaxies have a bulge-like central region and a halo, but do not have a disk.
Where in the galaxy are high-velocity stars found?
in the halo
What is the collection of ancient stars found in the center of the local group called?
The collection of ancient stars found in the center of the Local Group is called the Galactic Halo. The Galactic Halo is a spherical region of space that surrounds the disk of the Milky Way galaxy. It is made up of old, metal-poor stars that are thought to have formed very early in the history of the Milky Way. The Galactic Halo is also home to globular clusters, which are dense groups of hundreds of thousands of stars. The Galactic Halo is thought to be the remnant of a smaller galaxy that merged with the Milky Way billions of years ago. The merger caused the smaller galaxy to be torn apart, and its stars were scattered into the Galactic Halo. The Galactic Halo is a very sparsely populated region of space. The stars are so far apart that they are difficult to see individually with the naked eye. However, the Galactic Halo can be seen in the night sky as a faint glow of light.
What is the difference between disk stars and halo stars?
Stars in the disk all orbit in the same direction and nearly the same plane, while halo stars have more randomly oriented orbits.Clusters of young stars are found only in the disk.Disk stars come in a broad range of masses and colors, while halo stars are mostly of low mass and red.Gas and dust are abundant in the disk but not in the halo.
Where in space would you look for a globular cluster?
In the Milky Way galactic halo, orbiting the galactic center in a long elliptical orbit around the galactic center
What is a central bulge?
Nothing to be trifled with. : P In astronomy it is the almost spherical layer of stars surrounding the center hub of our galaxy. A layer in the onion, so to speak. It is a widening near the core (the centre) of a galaxy and consists of mainly very old stars. Very rare for new stars to form because of the lack of dust and gases between the stars. Surrounding this central bulge is what's called the galactic halo, which is made up of individual stars.
How do spirals form?
Spiral galaxies form from the collapse of a protogalactic cloud. Spiral galaxies consist of three components: a rotating disk, a bulge and a halo. Spiral galaxies, like the Milky Way, owe their shape to stars inside the protogalaxy developing at different intervals. The gas between forming stars continues to be compressed, and the resulting gravitational differences manhandle the protogalaxy's stars, dust and gas. When the protogalactic cloud collapses, the stars in the bulge and halo form first. These stars have rather random orbits around the galactic center. The galactic center probably contains a supermassive black hole, which likely exerts some gravitational influence on the formation of a spiral galaxy. The remainder of the cloud forms a disk due to the conservation of angular momentum (the same effect as the spinning up of the dancer when she pulls her arms inside). This motion forces everything into a rotating disk, and additional differences in gravity build the spiral arms. Oppositely, when a protogalaxy's stars develop at the same time, you have an elliptical galaxy on your hands. The stars in the disk form later and thus the disk population of stars are younger than those in the bulge and the halo. Further, the stars in the disk rotate around the center of the galaxy in a collective, well defined way unlike the stars in the bulge and halo.
The difference between disk and halo stars?
Which of the following statements correctly summarize key differences between the disk and the halo?Answer:Clusters of young stars are found only in the disk.Stars in the disk all orbit in the same direction and nearly the same plane, while halo stars have more randomly oriented orbits.Gas and dust are abundant in the disk but not in the halo.Disk stars come in a broad range of masses and colors, while halo stars are mostly of low mass and red.
How do spiral galaxies form?
Spiral galaxies form from the collapse of a protogalactic cloud. Spiral galaxies consist of three components: a rotating disk, a bulge and a halo. Spiral galaxies, like the Milky Way, owe their shape to stars inside the protogalaxy developing at different intervals. The gas between forming stars continues to be compressed, and the resulting gravitational differences manhandle the protogalaxy's stars, dust and gas. When the protogalactic cloud collapses, the stars in the bulge and halo form first. These stars have rather random orbits around the galactic center. The galactic center probably contains a supermassive black hole, which likely exerts some gravitational influence on the formation of a spiral galaxy. The remainder of the cloud forms a disk due to the conservation of angular momentum (the same effect as the spinning up of the dancer when she pulls her arms inside). This motion forces everything into a rotating disk, and additional differences in gravity build the spiral arms. Oppositely, when a protogalaxy's stars develop at the same time, you have an elliptical galaxy on your hands. The stars in the disk form later and thus the disk population of stars are younger than those in the bulge and the halo. Further, the stars in the disk rotate around the center of the galaxy in a collective, well defined way unlike the stars in the bulge and halo.
What do halo stars do differently from disk stars?
I assume, that a) by Halo stars, you mean high velocity stars, and b) by disk stars, you mean stars that stay within the galaxy (Normal stars).Halo stars are usually very old stars that do no orbit the centre of the Galaxy the same way that our Sun or other stars in a galaxy. Rather, they travel in elliptical orbits, which often take them well outside the plane of the Galaxy.
