activity
19942020
most citedPrevalence and Properties of Dark Matter in Elliptical Galaxies

102 citations · 706 across the 26 of their papers we have counts for

collaborators

26 papers

astro-ph.GA2020★ 11 cited

Joint Suzaku and Chandra observations of the MKW4 galaxy group out to the virial radius

Arnab Sarkar, Yuanyuan Su, Scott Randall +5

We present joint Suzaku and Chandra observations of MKW4. With a global temperature of 1.6 keV, MKW4 is one of the smallest galaxy groups that have been mapped in X-rays out to the…

astro-ph.GA2018★ 4 cited

Chandra and HST Snapshots of Fossil System Progenitors

Lucas E. Johnson, Jimmy A. Irwin, Raymond E. White +2

The search for the progenitors to today's fossil galaxy systems has been restricted to N-body simulations until recently, where 12 fossil progenitors were identified in the CASSOWA…

astro-ph.GA2017★ 9 cited

Using Strong Gravitational Lensing to Identify Fossil Group Progenitors

Lucas E. Johnson, Jimmy A. Irwin, Raymond E. White +5

Fossil galaxy systems are classically thought to be the end result of galaxy group/cluster evolution, as galaxies experiencing dynamical friction sink to the center of the group po…

astro-ph.GA2015

The Cheshire Cat Gravitational Lens: The Formation of a Massive Fossil Group

Jimmy A. Irwin, Renato Dupke, Eleazar R. Carrasco +3

The Cheshire Cat is a relatively poor group of galaxies dominated by two luminous elliptical galaxies surrounded by at least four arcs from gravitationally lensed background galaxi…

astro-ph.GA2015

The Scatter in the Hot Gas Content of Early-Type Galaxies

Yuanyuan Su, Jimmy A. Irwin, Raymond E. White +1

Optically-similar early-type galaxies are observed to have a large and poorly understood range in the amount of hot, X-ray-emitting gas they contain.To investigate the origin of th…

astro-ph.HE2014★ 27 cited

Joint XMM-Newton and Chandra Observations of the NGC 1407/1400 Complex: a Tail of an Early-Type Galaxy and a Tale of a Nearby Merging Group

Yuanyuan Su, Liyi Gu, Raymond White +1

The nearby group centered on its bright central galaxy NGC 1407 has been suggested to be an unusually dark system from previous kinematic studies. It is also known for hosting a br…