895 citations · 15.5k across the 179 of their papers we have counts for
29 papers · 1 filter
Mass models of galaxy clusters from a non-parametric weak-lensing reconstruction
Tobias Mistele, Federico Lelli, Stacy McGaugh +2
We study the CLASH sample of galaxy clusters using a new deprojection method for weak gravitational lensing observations. This method is non-parametric, allowing us to infer mass p…
A New Uncertainty Scheme for Galaxy Distances from Flow Models
Konstantin Haubner, Federico Lelli, Enrico Di Teodoro +3
The systemic velocity or redshift of galaxies is a convenient tool to calculate their distances in the absence of primary methods, but the uncertainties on these flow distances may…
Discord in Concordance Cosmology and Anomalously Massive Early Galaxies
Stacy McGaugh
Cosmological parameters are constrained by a wide variety of observations. We examine the concordance diagram for modern measurements of the Hubble constant, the shape parameter fr…
Measuring galaxy cluster mass profiles into the low acceleration regime with galaxy kinematics
Pengfei Li, Yong Tian, Mariana P. Júlio +7
We probe the dynamical mass profiles of 10 galaxy clusters from the HIghest X-ray FLUx Galaxy Cluster Sample (HIFLUGCS) using galaxy kinematics. We numerically solve the spherical…
Using The Baryonic Tully-Fisher Relation to Measure
James Schombert, Stacy McGaugh, Federico Lelli
We explore the use of the baryonic Tully-Fisher relation (bTFR) as a new distance indicator. Advances in near-IR imaging and stellar population models, plus precise rotation curves…
Predictions for the sky-averaged depth of the 21cm absorption signal at high redshift in cosmologies with and without non-baryonic cold dark matter
Stacy McGaugh
We consider the 21cm absorption signal expected at high redshift in cosmologies with and without non-baryonic cold dark matter. The expansion of the early universe decelerates stro…
Strong Hydrogen Absorption at Cosmic Dawn: the Signature of a Baryonic Universe
Stacy McGaugh
The recently reported detection of redshifted 21cm absorption at is a significant advance in the exploration of the cosmic dark ages. The observed signal ($T_{\mathr…
A Tale of Two Paradigms: the Mutual Incommensurability of LCDM and MOND
Stacy S. McGaugh
The concordance model of cosmology, LCDM, provides a satisfactory description of the evolution of the universe and the growth of large scale structure. Despite considerable effort,…
The Formation of Spiral Galaxies: Adiabatic Compression with Young's Algorithm and the Relation of Dark Matter Haloes to Their Primordial Antecedents
Harley Katz, Stacy S. McGaugh, J. A. Sellwood +1
We utilize Young's algorithm to model the adiabatic compression of the dark matter haloes of galaxies in the THINGS survey to determine the relationship between the halo fit to the…
The MOND phenomenology
Benoit Famaey, Stacy McGaugh
The Lambda-CDM cosmological model is succesful at reproducing various independent sets of observations concerning the large-scale Universe. This model is however currently, and act…
Andromeda Dwarfs in Light of MOND. II. Testing Prior Predictions
Stacy McGaugh, Moti Milgrom
We employ recently published measurements of the velocity dispersions in the newly discovered dwarf satellite galaxies of Andromeda to test our previously published predictions of…
Stellar Populations and the Star Formation Histories of LSB Galaxies: II. HII Regions
James Schombert, Stacy McGaugh, Tamela Maciel
The luminosities, colors and Hα emission for 429 HII regions in 54 LSB galaxies are presented. While the number of HII regions per galaxy is lower in LSB galaxies compared to star-…
Galaxy Cluster Bulk Flows and Collision Velocities in QUMOND
Harley Katz, Stacy McGaugh, Peter Teuben +1
We examine the formation of clusters of galaxies in numerical simulations of a QUMOND cosmogony with massive sterile neutrinos. Clusters formed in these exploratory simulations dev…
Discrete clouds of neutral gas between the galaxies M31 and M33
Spencer A. Wolfe, D. J. Pisano, Felix J. Lockman +2
Spiral galaxies must acquire gas to maintain their observed level of star formation beyond the next few billion years (Leroy et al. 2008). A source of this material may be the gas…
The Stellar Masses of Disk Galaxies and the Calibration of Color-Mass to Light Ratio Relations
Stacy McGaugh, Jim Schombert
We present new Spitzer 3.6 micron observations of a sample of disk galaxies spanning over 10 magnitudes in luminosity and ranging in gas fraction from ~10% to over 90%. We use thes…
Andromeda Dwarfs in Light of MOND
Stacy McGaugh, Mordehai Milgrom
We compare the recently published velocity dispersions for seventeen Andromeda dwarf spheroidals with estimates of the MOND predictions, based on the luminosities of these dwarfs,…
Challenges for Lambda-CDM and MOND
Benoit Famaey, Stacy McGaugh
The Universe on large scales is well described by the Lambda-CDM cosmological model. There however remain some heavy clouds on our global understanding, especially on galaxy scales…
A QUMOND galactic N-body code I: Poisson solver and rotation curve fitting
Garry W. Angus, Kurt van der Heyden, Benoit Famaey +3
Here we present a new particle-mesh galactic N-body code that uses the full multigrid algorithm for solving the modified Poisson equation of the Quasi Linear formulation of Modifie…
Modified Newtonian Dynamics (MOND): Observational Phenomenology and Relativistic Extensions
Benoit Famaey, Stacy McGaugh
A wealth of astronomical data indicate the presence of mass discrepancies in the Universe. The motions observed in a variety of classes of extragalactic systems exceed what can be…
Stellar Populations and the Star Formation Histories of LSB Galaxies: I. Optical and H-alpha Imaging
James Schombert, Tamela Maciel, Stacy McGaugh
This paper presents optical and H-alpha imaging for a large sample of LSB galaxies selected from the PSS-II catalogs (Schombert et. al 1992). As noted in previous work, LSB galaxie…
Missing the Point - a Brief Reply to Foreman & Scott and Gnedin
Stacy McGaugh
In recent postings, Foreman & Scott and Gnedin criticize my work on the baryonic Tully-Fisher relation (BTFR) of gas rich galaxies as tests of MOND and LCDM (McGaugh 2011a,b). Thes…
The Baryonic Tully-Fisher Relation of Gas Rich Galaxies as a Test of LCDM and MOND
Stacy McGaugh
The Baryonic Tully-Fisher Relation (BTFR) is an empirical relation between baryonic mass and rotation velocity in disk galaxies. It provides tests of galaxy formation models in LCD…
A Novel Test of the Modified Newtonian Dynamics with Gas Rich Galaxies
Stacy S. McGaugh
The current cosmological paradigm, LCDM, requires that the mass-energy of the universe be dominated by invisible components: dark matter and dark energy. An alternative to these da…
Testing Modified Newtonian Dynamics with Rotation Curves of Dwarf and Low Surface Brightness Galaxies
R. A. Swaters, R. H. Sanders, S. S. McGaugh
Dwarf and low surface brightness galaxies are ideal objects to test modified Newtonian dynamics (MOND), because in most of these galaxies the accelerations fall below the threshold…