158 citations · 248 across the 10 of their papers we have counts for
10 papers
JWST Reveals a Candidate Jellyfish Galaxy at z=1.156
Ian D. Roberts, Michael L. Balogh, Visal Sok +3
We report the discovery of COSMOS2020-635829 as a candidate jellyfish galaxy undergoing ram pressure stripping in a (proto)cluster at . High-resolution imaging from the Jame…
Truncated star formation and ram pressure stripping in the Coma Cluster
Ariel O. Broderick, Ian D. Roberts, Michael J. Hudson
We use 45 galaxies from the Mapping Nearby Galaxies at Apache Point Observatory survey to study the physical drivers of star formation quenching in the Coma cluster. We measure spe…
The Velocity Field Olympics: Assessing velocity field reconstructions with direct distance tracers
Richard Stiskalek, Harry Desmond, Julien Devriendt +5
The peculiar velocity field of the local Universe provides direct insights into its matter distribution and the underlying theory of gravity, and is essential in cosmological analy…
Uncertainties in the Hubble Constant from Peculiar Velocities
Amber M. Hollinger, Michael J. Hudson
Recent measurements of the Hubble constant using type Ia supernovae explicitly correct for their estimated peculiar velocities using the 2M++ reconstruction of the local density fi…
Constraining cosmological parameters using density split lensing and the conditional stellar mass function
Pierre A. Burger, Darshak A. Patel, Michael J. Hudson
In this work, we develop a simulation-based model to predict the excess surface mass density (ESD) depending on the local density environment. Using a conditional stellar mass func…
Cosmological parameters from the joint analysis of Density Split and Second Order Statistics: an Emulator based on the Halo Occupation Distribution
Pierre A. Burger, Enrique Paillas, Michael J. Hudson
In this work, we develop a simulation-based model to predict the density split (DSS) and second-order shear and clustering statistics. A simulation-based model has the potential to…
Cosmological parameters estimated from velocity -- density comparisons: Calibrating 2M++
Amber M. Hollinger, Michael J. Hudson
Cosmological parameters can be measured by comparing peculiar velocities with those predicted from a galaxy density field. Previous work has tested the accuracy of this approach wi…
The discovery of the faintest known Milky Way satellite using UNIONS
Simon E. T. Smith, William Cerny, Christian R. Hayes +14
We present the discovery of Ursa Major III/UNIONS 1, the least luminous known satellite of the Milky Way, which is estimated to have an absolute V-band magnitude of $+2.2^{+0.4}_{-…
The SAMI Galaxy Survey: Quenching of star formation in clusters I. Transition galaxies
Matt S. Owers, Michael J. Hudson, Kyle A. Oman +19
We use integral field spectroscopy from the SAMI Galaxy Survey to identify galaxies that show evidence for recent quenching of star formation. The galaxies exhibit strong Balmer ab…
The Phase Space and Stellar Populations of Cluster Galaxies at z ~ 1: Simultaneous Constraints on the Location and Timescale of Satellite Quenching
Adam Muzzin, R. F. J. van der Burg, Sean L. McGee +9
We investigate the velocity vs. position phase space of z ~ 1 cluster galaxies using a set of 424 spectroscopic redshifts in 9 clusters drawn from the GCLASS survey. Dividing the g…