924 citations · 5.5k across the 78 of their papers we have counts for
6 papers · 1 filter
Inferring Gravitational Potentials from Mass Densities in Cluster-sized Halos
Christopher J. Miller, Alejo Stark, Daniel Gifford +1
We use N-body simulations to quantify how the escape velocity in cluster-sized halos maps to the gravitational potential in a LambdaCDM universe. Using spherical density-potential…
Stacking Caustic Masses from Galaxy Clusters
Daniel Gifford, Nicholas Kern, Christopher J. Miller
Ongoing and future spectroscopic surveys will measure numerous galaxy redshifts within tens of thousands of galaxy clusters. However, the sampling within these clusters will be low…
On Escaping a Galaxy Cluster in an Accelerating Universe
Alejo Stark, Christopher J. Miller, Daniel Gifford
We derive the escape velocity profile for an Einasto density field in an accelerating universe and demonstrate its physical viability by comparing theoretical expectations to both…
A Study of Central Galaxy Rotation with Stellar Mass and Environment
Paola Oliva-Altamirano, Sarah Brough, Kim-Vy Tran +11
We present a pilot analysis of the influence of galaxy stellar mass and cluster environment on the probability of slow rotation in 22 central galaxies at mean redshift . Th…
Cosmology with Galaxy Cluster Phase Spaces
Alejo Stark, Christopher J. Miller, Dragan Huterer
We present a novel approach to constrain accelerating cosmologies with galaxy cluster phase spaces. With the Fisher matrix formalism we forecast constraints on the cosmological par…
Probing Theories of Gravity with Phase Space-Inferred Potentials of Galaxy Clusters
Alejo Stark, Christopher J. Miller, Nicholas Kern +5
Modified theories of gravity provide us with a unique opportunity to generate innovative tests of gravity. In Chameleon f(R) gravity, the gravitational potential differs from the w…