Calculate the minimum mass of an X-ray binary

[Calpalned]

Homework Statement

Homework Equations

n/a

The Attempt at a Solution

I don't know how to start part A and part B depends on part A. How does one calculate a lower mass limit? Is it the lower limit of an integral? I also don't understand how there can be two periods (one at 0.714 seconds and the other at 3.89 days). Do I use simple harmonic motion? My teacher never covered anything this complicated before. Thank you for your time.

 

[Calpalned]

How is this advanced? This is my introductory astronomy class, and it's very frustrating.

 

[Calpalned]

Thanks everyone!

 

[Calpalned]

Why are there no responses?

 

[SteamKing]

How is this advanced? This is my introductory astronomy class, and it's very frustrating.

Not everybody on this site is a budding astronomer.

Your OP doesn't indicate any relevant equations. Are you sure that's the case with this problem?