Double Star characteristic frequencies of light

[mmfoley]

How can an astronomer recognize a double star from the characteristic frequencies of the light that reaches him from its member stars? I have looked and looked in my textbook but I cannot come up with the answer to this one.

Thank you!
mmfoley

[Labguy]

Originally posted by mmfoley
How can an astronomer recognize a double star from the characteristic frequencies of the light that reaches him from its member stars? I have looked and looked in my textbook but I cannot come up with the answer to this one.

Thank you!
mmfoley There is a good start here with links back to the index on the whole course:

http://instruct1.cit.cornell.edu/courses/astro101/lec16.htm

[mmfoley]

Thank you, I'll be sure to check this out!