237 citations · 1.4k across the 16 of their papers we have counts for
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The Impact of Cluster Structure and Dynamical State on Scatter in the Sunyaev-Zel'dovich Flux-Mass Relation
H. -Y. Karen Yang, Suman Bhattacharya, Paul M. Ricker
Cosmological constraints from cluster surveys rely on accurate mass estimates from the mass-observable relations. In order to avoid systematic biases and reduce uncertainties, we s…
Galaxy Peculiar Velocities From Large-Scale Supernova Surveys as a Dark Energy Probe
Suman Bhattacharya, Arthur Kosowsky, Jeffrey A. Newman +1
Upcoming imaging surveys such as the Large Synoptic Survey Telescope will repeatedly scan large areas of sky and have the potential to yield million-supernova catalogs. Type Ia sup…
Impact of Cluster Physics on the Sunyaev-Zel'dovich Power Spectrum
Laurie D. Shaw, Daisuke Nagai, Suman Bhattacharya +1
We use an analytic model to investigate the theoretical uncertainty on the thermal Sunyaev-Zel'dovich (SZ) power spectrum due to astrophysical uncertainties in the thermal structur…
Mass Function Predictions Beyond LCDM
Suman Bhattacharya, Katrin Heitmann, Martin White +3
The mass distribution of halos, as specified by the halo mass function, is a key input for several cosmological probes. The sizes of -body simulations are now such that, for the…
Galaxy Clusters as a probe of early dark energy
Ujjaini Alam, Zarija Lukić, Suman Bhattacharya
We study a class of early dark energy (EDE) models, in which, unlike in standard dark energy models, a substantial amount of dark energy exists in the matter-dominated era. We self…