Chapters 14-18

.docx

School

Oakton Community College, Des Plaines *

*We aren’t endorsed by this school

Course

115

Subject

Astronomy

Date

Dec 6, 2023

Type

docx

Pages

14

Uploaded by AmbassadorHeatSalamander46

Report
Chapters 19 on 19 1. This painting represents the Milky Way Galaxy as it might appear from a distance. Identify the indicated features. 2. This painting represents the Milky Way Galaxy as it would appear edge-on from a distance. Label the indicated features; be sure to pay attention to where the leader lines are pointing.
3. Different regions of the galaxy tend to contain stars of different ages. Place labels for the ages of stars in the correct regions of the galaxy painting. 4. 5. Sort each item into the appropriate bin according to whether it is more common in spiral arms or about equally common within and between the spiral arms in a spiral galaxy's disk.
6. 7. Watch the video that comes up when you click the icon "Star formation in spiral arms" in the interactive figure. Which of the following best describes what spiral arms are? Spiral arms are waves of higher density that move outward through a galaxy, triggering star formation as they pass. 8.
9. 10. 11. Based on the association of star formation with spiral arms, we can conclude that the gas in spiral arms __________ than it does in regions between the arms. has greater density 12. If you wanted to observe the center of our galaxy, you would need to point a telescope in the direction of the constellation __________. Sagittarius 13. Consider the portion of the video that starts with the all-sky view of the Milky Way and then zooms in to the galactic center. All of the images except the first two show radio, infrared, or X-ray light. Why don’t these images show visible light? Interstellar dust in the galactic disk prevents us from seeing the galactic center with visible light.
14. 15. 16. Based on the measurements discussed in part D, the mass of the central black hole is calculated to be about __________ times that of the Sun. 4 million 17. Astronomers are seeking to obtain an image of the region around the black hole’s event horizon with a project called the Event Horizon Telescope. What type of light does this project seek to observe? radio waves
Your preview ends here
Eager to read complete document? Join bartleby learn and gain access to the full version
  • Access to all documents
  • Unlimited textbook solutions
  • 24/7 expert homework help