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What does two theories explain how the spiral arms are maintained?
Two primary theories explain how the spiral arms of galaxies are maintained: the density wave theory and the self-propagating star formation theory. The density wave theory posits that spiral arms are not made up of material but are instead regions of higher density that rotate around the galaxy, causing stars and gas to cluster and create the appearance of arms. The self-propagating star formation theory suggests that star formation occurs in waves, where the formation of new stars triggers further star formation in adjacent areas, leading to the development of spiral patterns over time. Both theories highlight the dynamic processes that contribute to the structure of spiral galaxies.
What is a galaxy arms coming from the center like a pinwheel?
A galaxy with arms extending from its center like a pinwheel is typically classified as a spiral galaxy. These arms are regions of higher density where stars, gas, and dust are concentrated, often resulting in active star formation. The spiral structure is maintained by the galaxy's rotation and gravitational interactions, creating a dynamic and visually striking appearance. Prominent examples of spiral galaxies include the Milky Way and the Andromeda Galaxy.
What type of galaxy as curved arms?
a spiral galaxy
What kind of galaxy has arms of gas and dust?
Elliptical galaxies.
What is the name of a galaxy with winding arms called?
A spiral galaxy.
The theory of the movement of the arms in ballet?
The theory of the movement of the arms for ballet
How does a lenticular galaxy differ from a normal spiral galaxy?
It has no 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.
Why are astronomers amazed at the clockwise-turning galaxy revealed by Hubble?
The galaxy is spinning in the direction the arms are pointing; the arms are not trailing behind.
What is a Galaxy that has a distinctive arms and a nuclear bulge?
A spiral galaxy or barred galaxy, the milky way is one.
How are barred spiral galaxy different from spiral galaxy?
An ordinary spiral galaxy has spiral arms coming out of the core. In a barred galaxy, the central area consists of a bar of stars and the spiral arms are attached to the ends of the bar.
Does your solar system lies in the galaxy's disk or spiral arms?
The spiral arms
