Chapter 6 Homework Flashcards
Classify each event that occurs during the formation of a single star according to whether it is the result of the star’s original gas cloud having some amount of spin.
Result from rotating gas cloud:
Formation of polar jets
Rapidly rotating star
Formation of a disk around the star
Orbit of planet in a common plane around the star
Do not result from rotating gas cloud:
Gravitation heating
Open cluster formation
What physical principle is responsible for these features?
Conservation of angular momentum
Suppose a protostar had a surface temperature of 3300 K and a Luminosity of 150 L, where L represents the luminosity Sun. Eventually, the protostar evolves into a main-sequence star with a star with a surface temperature of 9100 K and a luminosity of 22 L. How does the radius of the main-sequence star Rs, compare to the radius of the protostar Rps?
Rs= 5.04 x 10^-2 x Rps
Identify the primary roles of dust in the formation of the early Solar System
Which of the properties of the Solar System are explained by the Grand Tack hypothesis
Mars is much less massive than Earth
The asteroid belt contains objects that originate from both the inner and outer Solar System
The outer planets in the Solar System are composed primarily of light elements, such as hydrogen and helium, whereas the inner planets are composed of heavier elements, such as silicon and iron. What is the reason for this difference?
The difference in the temperature between the inner and outer solar system
During the formation of the Solar System, frequent collisions between planetesimals and protoplanets played an important part in the evolution of the planets.
Uranus gained its ice-rich composition
If the proplanets maintain their locations from the Sun, then which one is most likely to become a jovian planet?
Phoenix
