Table of Contents
- 1 Where are the stars with the highest fraction of heavy elements found in the Milky Way?
- 2 What type of stars do globular clusters contain?
- 3 Which type of stars contain a higher proportion of heavy elements stars in globular clusters of stars in open clusters?
- 4 Where are most heavy elements made?
- 5 Why are globular clusters found in the halo?
- 6 Which of the following star clusters is the most dense?
- 7 What is the composition of the Stars in the Halo?
- 8 How are the Stars in the halo of the Milky Way organized?
Where are the stars with the highest fraction of heavy elements found in the Milky Way?
Halo stars spend most of their time high above or below the disk but pass through it on their highly elliptical orbits and so are sometimes found relatively near the Sun. The highest density of stars is found in the central bulge, that bar-shaped inner region of the Galaxy.
What type of stars do globular clusters contain?
Globular clusters are generally composed of hundreds of thousands of low-metal, old stars. 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.
What type of stars are found in the galactic halo?
The Milky Way’s stellar halo contains globular clusters, RR Lyrae stars with low metal content, and subdwarfs. Stars in our stellar halo tend to be old (most are greater than 12 billion years old) and metal-poor, but there are also halo star clusters with observed metal content similar to disk stars.
What type of star clusters makes up most of the stars?
Globular clusters were given this name because they are nearly symmetrical round systems of, typically, hundreds of thousands of stars. The most massive globular cluster in our own Galaxy is Omega Centauri, which is about 16,000 light-years away and contains several million stars (Figure 1).
Which type of stars contain a higher proportion of heavy elements stars in globular clusters of stars in open clusters?
Based on the idea of chemical enrichment, which types of stars contain a higher proportion of heavy elements: Star in globular clusters or stars in open clusters? Open clusters – because they are younger, and therefore formed from more enriched material.
Where are most heavy elements made?
stars
The most common elements, like carbon and nitrogen, are created in the cores of most stars, fused from lighter elements like hydrogen and helium. The heaviest elements, like iron, however, are only formed in the massive stars which end their lives in supernova explosions.
Do globular clusters contain main sequence stars?
Globular clusters are very massive objects that contain hundreds of thousands or perhaps a million stars. There are no Main Sequence stars of types OBAF, but there are many red giants.
Which stars are brightest in an aging globular cluster quizlet?
The brightest stars in aging globular clusters will be: red supergiants like Betelguese and Antares. Noting the turnoff mass in a star cluster allows you to determine its: age.
Why are globular clusters found in the halo?
Globular star clusters are known to be located mostly in the great spherical halo of the Milky Way. Classical bulges are thought to emerge from violent events such as galaxy mergers or sinking of giant gas clumps and host older stellar population within a spherical structure like elliptical galaxies.
Which of the following star clusters is the most dense?
This NASA/ESA Hubble Space Telescope image presents the Arches Cluster, the densest known star cluster in the Milky Way. It is located about 25,000 light-years from Earth in the constellation of Sagittarius (The Archer), close to the heart of our galaxy, the Milky Way.
Which type of star system has the most stars?
Star systems
| Title | Object |
|---|---|
| Least stars in a star system | There are many single star systems. |
| Most stars in a star system | Nu Scorpii AR Cassiopeiae |
| Stars in the closest orbit around one another | There are many stars that are in contact binary systems (where two or more stars are in physical contact with each other). |
What are halo stars?
A stellar halo is an essentially spherical population of stars and globular clusters thought to surround most disk galaxies and the cD class of elliptical galaxies. The halo stars in the Milky Way are generally old, with most having ages greater than 12 billion years.
What is the composition of the Stars in the Halo?
D) Halo stars are made entirely of hydrogen and helium with no heavy elements. What evidence suggests that the protogalactic cloud that formed the Milky Way resulted from several collisions among smaller clouds? A) The stars in the halo of the Milky Way are organized into several dense clusters arranged throughout the halo.
How are the Stars in the halo of the Milky Way organized?
A) The stars in the halo of the Milky Way are organized into several dense clusters arranged throughout the halo. B) The Milky Way resembles an elliptical galaxy more than other spirals do. C) Halo stars differ in age and heavy-element content, but these variations do not seem to depend on the stars’ distance from the galactic center.
What is the difference between disk stars and halo stars?
A) The average age of disk stars is less than that of halo stars. B) Disk stars are all younger than 5 billion years. C) Disk stars have a higher proportion of heavy elements, on average, than halo stars. D) Disk stars orbit in the same direction around the Galactic center. E) The length of the disk is about 100 times its thickness.
What is the composition of the Stars in a globular cluster?
Djorgovski 1 ‘s stars contain hydrogen and helium, but not much else. In astronomical terms, they are metal-poor. Globular clusters are generally composed of hundreds of thousands of low-metal, old stars.