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A galaxy with a bulge at its center and spiral arms?
This type of galaxy is categorized as a spiral galaxy. The bulge at the center contains older stars, while the spiral arms consist of younger stars and gas and dust regions where new star formation occurs. The Milky Way is an example of a galaxy with a bulge and spiral arms.
What is the shape of our galaxy?
Our galaxy, the Milky Way, is a spiral galaxy. It consists of a central bulge surrounded by spiral arms that contain stars, gas, and dust. We are located on one of the outer arms of the galaxy.
What is a Galaxy bugle?
A bulge is a tight group of stars found at the center of most spiral galaxies. The bright spot an the center of the galaxy in the picture above is the bulge. If this galaxy were seen from the side the collection of stars would create a bulge (spheroid) expanding out from the otherwise rather flat galaxy.
Why do new stars form in the arms of a spiral galaxy and not in the central bulge?
Stars form in all parts of our galaxy - not just the "arms". Stars do indeed form in the central bulge. The vast majority of hot, young, blue stars are formed in the arms, but stars also form in the central bulge as well.
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.
General structure of a Milky Way galaxy?
The Milky Way galaxy is a spiral galaxy with a central bulge, a disk made up of arms of gas, dust, and stars, and a halo of globular clusters. The central bulge contains older stars, while the disk is where younger stars are formed. The galaxy is surrounded by a halo of dark matter that extends beyond the visible components.
What are physical charachteristcs of a spiral galaxy?
A spiral galaxy, as its name implies, has one or more spiral arms that stretch out from the center. The center often contains a bulge of stars and sometimes can even contain an active black hole.
What is a huge group of stars that form a spreading spiral?
A galaxy is a huge group of stars that form a spreading spiral. Our own Milky Way galaxy is an example of a spiral galaxy.
What is the first portion of a galaxy that forms?
The first portion of a galaxy that forms is usually the central bulge, which consists of older stars and a dense concentration of matter. This is followed by the formation of the spiral arms as gas and dust are pulled towards the center, where new stars are born.
What population stars are found in a sprial galaxy?
Population I (High metal content) stars are generally found in the arms of spiral galaxies, whereas population II (Medium metal content) are generally found towards the centre of the galaxies.
What is the average age of stars in a barred-spiral galaxy?
The average age of stars in a barred spiral galaxy varies, but it typically ranges from a few million years for young, massive stars to several billion years for older stars. Many barred spiral galaxies contain a mix of stellar populations, with younger stars concentrated in the spiral arms and older stars found in the central bar and bulge. Overall, the average age can be around 3 to 10 billion years, depending on the specific galaxy and its star formation history.
What galaxie has a thick center and flattened arms?
The galaxy you are describing is a spiral galaxy. These galaxies typically have a dense, thick center known as the bulge, composed of stars and gas, along with flattened arms that extend outward, where stars, dust, and gas are concentrated. The Milky Way is a prime example of a spiral galaxy with these characteristics.
