- 13.1: Compared to the Suns orbital speed, stars orbiting the galactic cen...
- 13.2: If the Galaxy were spinning like a solid wheel, stars closer to the...
- 13.3: If the Galaxy were spinning like a solid wheel, stars farthest from...
- 13.4: If the Galaxy were spinning like our solar system, stars in the out...
- 13.5: Our Galaxy has a characteristic rotation that is best described as ...
- 13.6: The radio map in Figure 13-16 has a large gap on the side of the Ga...
- 13.7: In a spiral galaxy, are stars in general concentrated in the spiral...
- 13.8: How do astronomers determine how fast the Sun moves in its orbit ar...
- 13.9: How do astronomers conclude that vast quantities of dark matter sur...
- 13.10: Another student tells you that the Milky Way Galaxy is made up most...
- 13.11: What proposals have been made to explain the nature of dark matter? 1
- 13.12: In our Galaxy, why are stars of spectral classes O and B only found...
- 13.13: What is the evidence that there is a supermassive black hole at the...
Solutions for Chapter 13: Exploring Our Galaxy
Full solutions for Investigating Astronomy: A Conceptual View of the Universe | 1st Edition
Active continental margin
Usually narrow and consisting of highly deformed sediments. They occur where oceanic lithosphere is being subducted beneath the margin of a continent.
Layers of rock that were deposited without interruption.
Coriolis force (effect)
The deflective force of Earth’s rotation on all free-moving objects, including the atmosphere and oceans. Deflection is to the right in the Northern Hemisphere and to the left in the Southern Hemisphere.
The difference in height between the bottom of a cone of depression and the original height of the water table.
A permanent stream that traverses a desert and has its source in well-watered areas outside the desert.
A crack in rock along which there is a distinct separation.
The movement of surface water into rock or soil through cracks and pore spaces.
A sequence of stars on the Hertzsprung-Russell diagram, containing the majority of stars, that runs diagonally from the upper left to the lower right.
The 2,900-kilometer- (1,800-mile-) thick layer of Earth located below the crust.
The scientific study of the atmosphere and atmospheric phenomena; the study of weather and climate.
The nightly downslope winds commonly encountered in mountain valleys.
Date that specifies the actual number of years that have passed since an event occurred.
The material upon which a soil develops.
A system of streams running in all directions away from a central elevated structure, such as a volcano.
Hardened lava that has retained the vesicles produced by escaping gases.
Fog having the appearance of steam, produced by evaporation from a warm water surface into the cool air above.
The release of water vapor to the atmosphere by plants.
A front along which a warm air mass overrides a retreating mass of cooler air.