|Mar13-08, 06:12 PM||#1|
Please Help. Radio Spectroscopy -> Finding the doppler shift in a graph
I've been trying this for 3 hours and I'm getting nowhere. These are the graphs I made for Hydrogen Intensity vs Frequency for a radio telescope that transits the sun and galactic arms of the galaxy.
I need to find the rotation speed of the earth and the galactic arms. So I know I need to measure the doppler shift ...but my problem is, I don't know which spikes correspond to what. What spikes are from the sun or local space and which are from the galactic arms.
Anybody please help?
|Mar14-08, 12:13 PM||#2|
Nevermind this I figured most of it out ---
but can someone please help me determine which spike comes from the sun?
I know it's either the really thin intense one that's on all 3 ...but that looks more like a stray point to me ....or it's the other really large one that's thicker
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