What evidence supports the theory that there is a black hole at the center of ou
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What evidence supports the theory that there is a black hole at the center of our galaxy? a. We observe a large, dark object that absorbs all light at the center of our galaxy o b. The motions of the gas and stars at the center indicate that it contains a millon solar masses within a O C. We observe an extremely bright visible-ight source at the center of our galaxy. o d. We can see gas falling into an accretion disk and central mass at the center of our galaxy region less than 1 parsec across. QUESTION 14 4 points Save Answer One difference between the terms solar system and galaxy is that a. the solar system contains only one star but the galaxy contains many billions Ob. other stellar system contains planets, but the galaxy does not. c. other galaxies are rare, but other stellar systems are common. o d. other stellar systems are rare, but other galaxies are common QUESTION 15 4 points Save Answer Which types of galaxies have a clearly defined disk component? O a. Ellipticals and irregulars O b. Spirals. OC. Ellipticals. d. IrreaularsExplanation / Answer
1. What evidence supports the theory that there is a black hole at the center of our galaxy?
Answer: The motions of the gas and stars at the center indicate that it contains a million solar masses within a region only about 1 parsec across.
2. One difference between the term “solar system” and “Galaxy” is that
Answer: The Solar system contains only one star but the galaxy contains many billion.
Explanation: The solar system is a specific type of star system, where the Sun/other star stands center along with group of celestial bodies (planet, asteroids, comet material and dust). Many solar systems is a part of a single galaxy.
3. Which types of galaxies have a clearly defined disk component?
Answer: spirals
Explanation: Spiral Galaxies consist of a rotating disk, central bulge and protruding arms. The disk is a flattened shaped like a pancake. This type of Galaxy contains most
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