In-Class Assignment 12

In-Class Assignment 12#

Stellar Energy Sources#

Learning Objectives#

  • determine dominant reaction in low mass and massive star models

import numpy as np
import matplotlib.pyplot as plt
import pandas as pd

Download the following model files locally. These are different files than from the other day!

Dominant Burning Category#

Using the \(1 M_\odot\) and \(3M_\odot\) model MESA history data:

a.#

  1. Plot the pp and cno burning categories over time to determine which dominates in each model.

## a results here

b.#

  1. Compare the central temperature of each models and compare with the expected central temparature of the Sun.

Which is the dominant burning source in the Sun?

## b results here

Dominant Burning in Massive Stars#

Using the Massive Star model MESA history data:

c#

  1. Compare the triple_alfa and c_alpha categories and determine which is dominant and when.

## c results here

d#

  1. Identify the critical central temperature, he4 and c12 mass fraction when this crossover occurs.

### d results here
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