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20012025
most citedMeasuring the Black Hole Spin in Sgr A*

40 citations · 64 across the 5 of their papers we have counts for

collaborators

6 papers

astro-ph.GA2025★ 3 cited

The Three Hundred Project: deducing the stellar splashback structure of galaxy clusters from their orbiting profiles

Kris Walker, Aaron Ludlow, Chris Power +2

We examine the splashback structure of galaxy clusters using hydrodynamical simulations from the GIZMO run of The Three Hundred Project, focusing on the relationship between the st…

astro-ph.GA2025

The DORCHA suite: nature, nurture, and the phase space distribution of the Milky Way's high redshift progenitors today

Sreedhar Balu, Chris Power, Kris Walker +1

Where in the present-day Milky Way should we search for the remnants of its earliest stars? We address this question using the DORCHA (Gaelic for Dark; DUR-uh-khuh) suite: a set of…

astro-ph.CO2024

The Three Hundred Project: The relationship between the shock and splashback radii of simulated galaxy clusters

M. Zhang, K. Walker, A. Sullivan +4

Observations of the intracluster medium (ICM) in the outskirts of galaxy clusters reveal shocks associated with gas accretion from the cosmic web. Previous work based on non-radiat…

astro-ph.CO2024

Constraining cosmological parameters using the splashback radius of galaxy clusters

Roan Haggar, Yuba Amoura, Charlie T. Mpetha +3

Cosmological parameters such as and can be measured indirectly using various methods, including galaxy cluster abundance and cosmic shear. These measurements c…

astro-ph.HE2024★ 21 cited

Precision constraints on the neutron star equation of state with third-generation gravitational-wave observatories

Kris Walker, Rory Smith, Eric Thrane +1

It is currently unknown how matter behaves at the extreme densities found within the cores of neutron stars. Measurements of the neutron star equation of state probe nuclear physic…

astro-ph2001★ 40 cited

Measuring the Black Hole Spin in Sgr A*

Fulvio Melia, Benjamin C. Bromley, Siming Liu +2

The polarized mm/sub-mm radiation from Sgr A* is apparently produced by a Keplerian structure whose peak emission occurs within several Schwarzschild radii (r_S=2GM/c^2) of the bla…