G
George Rhee
Researcher at University of Nevada, Reno
Publications - 50
Citations - 2236
George Rhee is an academic researcher from University of Nevada, Reno. The author has contributed to research in topics: Galaxy & Galaxy cluster. The author has an hindex of 18, co-authored 50 publications receiving 2133 citations. Previous affiliations of George Rhee include Association of Universities for Research in Astronomy & New Mexico State University.
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Journal ArticleDOI
Bulgeless dwarf galaxies and dark matter cores from supernova-driven outflows
Fabio Governato,Chris B. Brook,Lucio Mayer,Alyson Brooks,George Rhee,James Wadsley,Patrik Jonsson,Beth Willman,Greg S. Stinson,Thomas R. Quinn,Piero Madau +10 more
TL;DR: Hydrodynamical simulations in a framework assuming the presence of CDM and a cosmological constant are reported in which the inhomogeneous interstellar medium is resolved and the analogues of dwarf galaxies—bulgeless and with shallow central dark-matter profiles—arise naturally in these simulations.
Journal ArticleDOI
Is There Evidence for Flat Cores in the Halos of Dwarf Galaxies? The Case of NGC 3109 and NGC 6822
Octavio Valenzuela,George Rhee,Anatoly Klypin,Fabio Governato,Gregory S. Stinson,Thomas P. Quinn,James Wadsley +6 more
TL;DR: In this paper, the authors use detailed, cosmologically motivated numerical models to investigate the systematic effects and the accuracy of recovering parameters of the galaxies and show that the rotation curves of these two galaxies are instead quite compatible with their DM halos having steep cuspy density profiles.
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The Rotation Curves of Dwarf Galaxies: A Problem for Cold Dark Matter?
TL;DR: In this paper, the authors identify three effects that explain the systematic biases: inclination, small bulge, and bar, and show that the effect of the bar depends on the angle that the bar makes with the line of sight.
Journal ArticleDOI
Is there Evidence for Flat Cores in the Halos of Dwarf Galaxies?: The Case of NGC 3109 and NGC 6822
Octavio Valenzuela,George Rhee,Anatoly Klypin,Fabio Governato,Fabio Governato,Gregory S. Stinson,Thomas P. Quinn,James Wadsley +7 more
TL;DR: In this article, the authors used detailed cosmologically motivated numerical models to investigate the systematics and the accuracy of recovering parameters of the galaxies and showed that the rotation curves of these two galaxies are instead quite compatible with their DM halos having steep cuspy density profiles.
Journal ArticleDOI
Clumped X-ray emission around radio galaxies in Abell clusters
TL;DR: In this article, a comparison of the X-ray and radio morphologies for a sample of 41 rich cluster fields using Einstein Observatory Imaging Proportional Counter (IPC) and Very Large Array (VLA) 20 cm images was made.