105 citations · 195 across the 4 of their papers we have counts for
4 papers
Abundance profiles and cool cores in galaxy groups
Ria Johnson, Alexis Finoguenov, Trevor J. Ponman +2
Using data from the Two Dimensional XMM-Newton Group Survey (2dXGS), we have examined the abundance profile properties of both cool core (CC) and non cool core (NCC) galaxy groups.…
Comparing X-ray and Dynamical Mass Profiles in the Early-Type Galaxy NGC 4636
Ria Johnson, Dalia Chakrabarty, Ewan O'Sullivan +1
We present the results of an X-ray mass analysis of the early-type galaxy NGC 4636, using Chandra data. We have compared the X-ray mass density profile with that derived from a dyn…
A statistical analysis of the Two Dimensional XMM-Newton Group Survey: The impact of feedback on group properties
Ria Johnson, Trevor J. Ponman, Alexis Finoguenov
(abridged) We present a statistical analysis of 28 nearby galaxy groups from the Two-Dimensional XMM-Newton Group Survey (2dXGS). We focus on entropy and the role of feedback, divi…
Mapping the Dark Side with DEIMOS: Globular Clusters, X-ray Gas, and Dark Matter in the NGC 1407 Group
Aaron J. Romanowsky, Jay Strader, Lee R. Spitler +4
NGC 1407 is the central elliptical in a nearby evolved galaxy group apparently destined to become a cluster core. We use the kinematics of globular clusters to probe the dynamics a…