
Find the Diameter of HT Cas!
You are progressing nicely in your astrophysics studies, but you are
looking for advancement. You want to work with Dr. Greenglow, a famous
cosmologist at your University, but
competition is stiff. She has only two positions in her lab this
semester, and to qualify for one of them, you must be the first one to
find the answer to the current challenge question, using real science
methods. You aren't allowed to look the answer up, in a book or on
the Web, or ask another scientist at the lab. You can use all of NASA's
resources (many are available on the Web), as well as your stunning
intellect.
The challenge question, which is posted on Dr. Greenglow's office door,
is: What is the diameter of the central star in
the Xray binary system HT Cas? To answer this challenge question, do
you want to:
