Journal
CLASSICAL AND QUANTUM GRAVITY
Volume 40, Issue 14, Pages -Publisher
IOP Publishing Ltd
DOI: 10.1088/1361-6382/acdd4a
Keywords
gravitomagnetism; galaxy rotation curves; dark matter
Ask authors/readers for more resources
The flatness of galaxy rotation curves at large radii is considered as supporting evidence for dark matter. Some studies have suggested that post-Newtonian corrections could eliminate the need for dark matter. However, recent research has identified errors in these claims, including technical and fundamental mistakes in the calculations. Our work reinforces the consensus that post-Newtonian effects are too small to significantly alter galactic rotation curves and provides a guide for avoiding common errors in such calculations.
The flatness of galaxy rotation curves at large radii is generally considered to be a significant piece of evidence in support of the existence of dark matter. Several studies have claimed that post-Newtonian corrections to the Newtonian equations of galaxy dynamics may remove (at least to some degree) the need for dark matter. A few recent studies have examined these claims, and identified errors in their reasoning. We add to this critique by giving what we consider to be particularly simple and transparent description of the errors made in these post-Newtonian calculations, some of which were of a rather technical nature, others more fundamental, e.g. the loss of the correct relativistic scaling, promoting small corrections to order unity changes. Our work reinforces the orthodoxy that post-Newtonian effects are indeed too small to significantly alter galactic rotation curves, and will hopefully serve as a useful guide for others, pointing out subtle errors that one might inadvertently make in such calculations.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available