Which of the Following Statements Best Describes Globular Clusters

Which of the following statements best describes the current state of understanding regarding the apparent acceleration of the expansion of the universe. We have moderately strong evidence that the acceleration is real but essentially no idea what is causing it.

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Which of the following statements best describes globular clusters.

. They contain from hundreds of thousands to millions of stars and have a typical size of about 50 parsecs. Globular star cluster are very symmetrical in shape and are densest toward their centers. Which of the following best describes how globular clusters are distributed in our Galaxy.

Globular clusters are generally composed of hundreds of thousands of low-metal old stars. Which is the best description of a globular cluster. In the figure above a Cepheid variable star with luminosity 1000 times that of the Sun has a pulsation period of roughly.

X c They are only found in the spiral arms. D They are only found in the nucleus. What is the age range among the globular clusters associated with our Galaxy.

The globular clusters range from 10 to 12 billion years old. B They are distributed spherically about the center of our Galaxy in the halo. Why do star clusters provide excellent tests for theories of stellar evolution-The stars in any particular cluster formed at roughly the same time from the same primary material and under the same environmental conditions.

They contain from hundreds of thousands to millions of stars and have a typical size of about 50 parsecs. Globular clusters formed from giant molecular clouds or huge masses of gas that form stars as they collapse. Which of the following statements about globular clusters is true.

A They are distributed about the center of our Galaxy within the disc. In the Milky Way Galaxy our Sun is located. Open star clusters are more irregular in shape.

The age of stars in a cluster can be determined by. Because there is less free gas available now than at the beginning of the universe globular clusters generally cannot form today. New treasure trove of globular clusters holds clues - ScienceDaily 1 week ago Using observations of Centaurus A a nearby elliptical galaxy obtained with the Gaia space telescope and ground-based instruments under the.

D They are only found in the nucleus. Globular clusters trace out the large scale structure of the galactic disk. Open and globular clusters each typically contain a few hundred stars.

B Stars in open clusters are relatively young while stars in globular clusters are very old. Which of the following best describes how globular clusters are distributed in our Galaxy. Globular clusters in the halo of the galaxy.

Which of the following statements about a globular cluster is true. What is the evidence that the milky way mist have formed when the gas within a huge clump. Which of the following best describes the axes of a Hertzprung-Russell H-R diagram.

C Open and globular clusters each typically contain a. Which of the following statements comparing open and globular star clusters is not true. A They are distributed about the center of our Galaxy within the disc.

Cluster ages can be determined from. C They are only found in the spiral arms. Most stars in the cluster are yellow or reddish in color.

When a stars inward gravity and outward pressure are balanced the star is said to be. 4 million solar masses. The stars found in a globular cluster are similar to those in the bulge of a spiral galaxy but confined to a spheroid in which half the light is emitted within a radius of only a few to a few tens of parsecs.

Which of the following statements best describes the local group. All stars in the cluster are approximately the same age. All of the above.

Which of the following best describes what would happen if a 15-solar-mass neutron star with a diameter of a few kilometers were suddenly for unexplained reasons to appear in. Which of the following statements about open clusters is true. They come in a variety of sizes and shapes and are typically accompanied by clouds of gas.

B They are distributed spherically about the center of our Galaxy in the halo. Which of the following. Which of the following statements best describes globular clusters.

The milky way is part of a the local group of galaxies. In the disk and about halfway out from the center. About 5 galaxies including Andromeda and many dwarf galaxies.

Most stars in the cluster are yellow or reddish in color. Determining the main sequence turnoff point. They typically contain a few hundred stars and are a few parsecs across.

Of dark matter collapsed. A Open clusters are found only in the disk of the galaxy while globular clusters may be found both in the disk and the halo of the galaxy.

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