To: RightWhale
I understand the doppler effect measurements, What I am saying is the red/blue shift could have other thing effecting it besides the simple Kepler rotation.
87 posted on
10/03/2003 5:56:46 PM PDT by
qam1
(Don't Patikify New Jersey)
To: qam1
"thing" should be "things"
88 posted on
10/03/2003 5:58:39 PM PDT by
qam1
(Don't Patikify New Jersey)
To: qam1
This might help you understand what is being measured.
Measuring Galactic Rotation Curves
When we determine the rotation curves for galaxies, we actually measure the velocities of two gases in those galaxies, Hydrogen and Carbon Monoxide. The reason we measure gas velocities is that gas produces spectral lines that shift in frequency as the gas moves. ...
92 posted on
10/03/2003 6:29:58 PM PDT by
AndrewC
To: qam1
the red/blue shift could have other thing effecting it besides the simple Kepler rotation. Such as?
93 posted on
10/03/2003 6:43:23 PM PDT by
RightWhale
(Repeal the Law of the Excluded Middle)
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