This is an alternative hypothesis to explain the galactic rotation problem.
2.
His theory explains galactic rotation curves without invoking dark matter.
3.
Beta Muscae is considered a runaway star system as it has a high peculiar velocity of relative to the normal galactic rotation.
4.
The galactic rotation then comes from the rotation of the Local Group, and eventually it all must come from the rotation of the universe, right?
5.
The first two examples are used as constraints to the Galactic rotation, for they show the fastest and slowest the Galaxy can rotate at a given radius.
6.
The theory claims to be consistent with both the macro-level observations of Newtonian gravity as well as Einstein's galactic rotation curves differ from the profile expected with visible matter.
7.
To confirm the rotation of our galaxy prior to this, in 1927 Jan Oort derived a way to measure the Galactic rotation from just a small fraction of stars in the local neighborhood.
8.
It was later realized that Kapteyn's data had been the first evidence of the rotation of our Galaxy, which ultimately led to the finding of galactic rotation by Bertil Lindblad and Jan Oort.
9.
If no value of the rotation parameter is successful and theory is not within observational error, a modification of physical law is considered, for example, dark matter is invoked to explain the galactic rotation curve.
10.
One of Oort s strengths, according to one source, was his ability to translate abstruse mathematical papers into physical terms, as exemplified by his translation of the difficult mathematical terms of Lindblad s theory of differential galactic rotation into a physical model.
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