159 citations · 485 across the 10 of their papers we have counts for
10 papers
Radial Acceleration and Tully-Fisher Relations in Conformal Gravity
James G. O'Brien, Thomas L. Chiarelli, Philip D. Mannheim +3
In 2016 McGaugh, Lelli and Schombert established a universal Radial Acceleration Relation for centripetal accelerations in spiral galaxies. Their work showed a strong correlation b…
Conformal Gravity and the Radial Acceleration Relation
James G. O'Brien, Thomas L. Chiarelli, Mark A. Falcone +1
During the 2016 International Workshop on Astronomy and Relativistic Astrophysics (IWARA), the question was raised as to if conformal gravity could explain the timely result of McG…
Alternative gravity rotation curves for the Little Things Survey
James G. O'Brien, Thomas L. Chiarelli, Jeremy Dentico +4
Galactic rotation curves have proven to be the testing ground for dark matter bounds in spiral galaxies of all morphologies. Dwarf galaxies serve as an increasingly interesting cas…
Universal Properties of Galactic Rotation Curves and a First Principles Derivation of the Tully-Fisher Relation
James G. O'Brien, Thomas L. Chiarelli, Philip D. Mannheim
In a recent paper McGaugh, Lelli, and Schombert showed that in an empirical plot of the observed centripetal accelerations in spiral galaxies against those predicted by the Newtoni…
Toward a Zero-Parameter Model for Galaxy Rotation Curve Data
Sophia Cisneros, James O'Brien, Noah Oblath +3
Modeling the luminous mass components of spiral galaxies in standard gravity poses a challenge due to the missing mass problem. However, with the addition of cold dark matter, the…
Galactic rotation curves in conformal gravity
Philip D. Mannheim, James G. O'Brien
We review some recent work by Mannheim and O'Brien on the systematics of galactic rotation curves in the conformal gravity theory. In this work the conformal theory was applied to…
Fitting dwarf galaxy rotation curves with conformal gravity
James G. O'Brien, Philip D. Mannheim
We continue our study of the application of the conformal gravity theory to galactic rotation curves. Previously we had studied a varied 111 spiral galaxy sample consisting of high…
Fitting galactic rotation curves with conformal gravity and a global quadratic potential
Philip D. Mannheim, James G. O'Brien
We apply the conformal gravity theory to a sample of 111 spiral galaxies whose rotation curve data points extend well beyond the optical disk. With no free parameters other than ga…
Impact of a global quadratic potential on galactic rotation curves
Philip D. Mannheim, James G. O'Brien
We have made a conformal gravity fit to an available sample of 110 spiral galaxies, and report here on the 20 of those galaxies whose rotation curve data points extend the furthest…
Limitations of the Standard Gravitational Perfect Fluid Paradigm
Philip D. Mannheim, James G. O'Brien, David Eric Cox
We show that the standard perfect fluid paradigm is not necessarily a valid description of a curved space steady state gravitational source. Simply by virtue of not being flat, cur…