31 citations · 145 across the 21 of their papers we have counts for
4 papers · 1 filter
The unusually high dark matter concentration of the galaxy group NGC 1600
J. Runge, S. A. Walker, M. S. Mirakhor
We investigate the properties of the dark matter (DM) halo surrounding the nearby galaxy group NGC 1600. Through the use of deep (252 ks) Chandra observations and 64.3 ks of XMM-Ne…
A detailed study of the bridge of excess X-ray emission between the galaxy clusters Abell 2029 and Abell 2033
M. S. Mirakhor, S. A. Walker, J. Runge
We examine Suzaku, XMM-Newton, and Chandra observations of the Abell 2029/2033 system to investigate the nature of a bridge of X-ray emission joining the two galaxy clusters. By mo…
Gas clumping in the outskirts of the Virgo cluster
M. S. Mirakhor, S. A. Walker
Observations of the ICM in the outskirts of the Virgo cluster with Suzaku have found the gas mass fraction in the northern direction to be significantly above the expected level, i…
Probing ultra-diffuse galaxies out to the virial radius of the Coma cluster with XMM-Newton
M. S. Mirakhor, S. A. Walker
We probe the formation scenarios and the active galactic nuclei (AGN) occupation fraction of ultra-diffuse galaxies (UDGs) in the nearby Coma cluster by utilizing XMM-Newton observ…