52 citations · 97 across the 7 of their papers we have counts for
9 papers · 1 filter
Probing gravity with redshift-space distortions: effects of tracer bias and sample selection
Jorge Enrique García-Farieta, Wojciech A. Hellwing, Suhani Gupta +1
We investigate clustering properties of dark matter halos and galaxies to search for optimal statistics and scales where possible departures from general relativity (GR) could be f…
Caught in the cosmic web: Environmental effect on halo concentrations, shape, and spin
Wojciech A. Hellwing, Marius Cautun, Rien van de Weygaert +1
Using a set of high-resolution simulations we study the statistical correlation of dark matter halo properties with the large-scale environment. We consider halo populations split…
The skewness of z=0.5 redshift-space galaxy distribution in Modified Gravity
Wojciech A. Hellwing
We study the reduced skewness, of galaxy distribution at in two families of modfied gravity models: the Hu-Sawicki -gravity a…
Simulating the dark matter decay signal from the Perseus galaxy cluster
Mark R. Lovell, Dmytro Iakubovskyi, David Barnes +4
The nearby Perseus galaxy cluster is a key target for indirect detection searches for decaying dark matter. We use the C-EAGLE simulations of galaxy clusters to predict the flux, w…
The signal of decaying dark matter with hydrodynamical simulations
Mark R. Lovell, David Barnes, Yannick Bahé +11
Dark matter particles may decay, emitting photons. Drawing on the EAGLE family of hydrodynamic simulations of galaxy formation -- including the APOSTLE and C-EAGLE simulations -- w…
Uneven flows: On cosmic bulk flows, local observers, and gravity
Wojciech A. Hellwing, Maciej Bilicki, Noam I. Libeskind
Using N-body simulations we study the impact of various systematic effects on the bulk flow (BF) and the Cosmic Mach Number (CMN). We consider two types of systematics: those relat…