724 citations · 2.1k across the 29 of their papers we have counts for
29 papers
The ultra-diffuse galaxy AGC 114905 needs dark matter
J. A. Sellwood, R. H. Sanders
Recent 21 cm line observations of the ultra-diffuse galaxy AGC~114905 indicate a rotating disc largely supported against gravity by orbital motion, as usual. Remarkably, this study…
Low-surface-brightness spheroidal galaxies as Milgromian isothermal spheres
R. H. Sanders
I consider a sample of eight pressure-supported low-surface brightness galaxies in terms of Milgrom's modified Newtonian dynamics (MOND). These objects include seven nearby dwarf s…
Dark matter -- Modified dynamics: Reaction vs. Prediction
Robert H. Sanders
The dark energy-cold dark matter paradigm (CDM) has gained widespread acceptance because it explains the pattern of anisotropies observed in the cosmic microwave background radi…
Spiral structure generated by major planets in proto-planetary disks: the role of periodic orbits near resonance
R. H. Sanders
In this paper I describe numerical calculations of the motion of particles in a disk about a solar-mass object perturbed by a planet on a circular orbit with mass greater than 0.00…
Does GW170817 falsify MOND?
R. H. Sanders
The gravitational-wave event GW170817 and the near-simultaneous corresponding gamma-ray burst (GRB 170817 A) falsify modified gravity theories in which the gravitational geometry d…
Perspective on MOND emergence from Verlinde's "emergent gravity" and its recent test by weak lensing
Mordehai Milgrom, Robert H. Sanders
We highlight phenomenological aspects of Verlinde's recent proposal to account for the mass anomalies in galactic systems without dark matter -- in particular in their relation to…