The Origin of the Light Distribution in Spiral Galaxies (2009)
Sanchez-Blazquez, Patricia, Courty, Stephanie, Gibson, Brad, Brook, Christopher
We analyse a high-resolution, fully cosmological, hydrodynamical disc galaxy simulation, to study the source of the double-exponential light profiles seen in many stellar discs, and the effects of...
Galactic Dynamics and Local Dark Matter (2009)
Majewski, Steven R., Bullock, James, Burkert, Andreas, Gibson, Brad, Grebel, Eva, Gnedin, Oleg Y., ...
The concordance Lambda Cold Dark Matter (Lambda-CDM) model for the formation of structure in the Universe, while remarkably successful at describing observations of structure on large scales,...
The Evolving Structure of Galactic Disks (2005)
Martel, Hugo, Brook, Chris, McGee, Sean, Gibson, Brad, Kawata, Daisuke
Observations suggest that the structural parameters of disk galaxies have not changed greatly since redshift 1. We examine whether these observations are consistent with a cosmology in which...
What do loose groups tell us about galaxy formation? (2004)
Pisano, D. J., Barnes, David, Gibson, Brad, Kilborn, Virginia, Staveley-Smith, Lister, Freeman, Ken
We present the results of a Parkes Multibeam HI survey of six loose groups of galaxies analogous to the Local Group. This survey was sensitive to HI-rich objects in these groups to below 10^7 M(sun)...
Where are the High Velocity Clouds in Local Group Analogs? (2004)
Pisano, D. J., Barnes, David, Gibson, Brad, Staveley-Smith, Lister, Freeman, Ken, Kilborn, Virginia
High-velocity clouds (HVCs) are clouds of HI seen around the Milky Way with velocities inconsistent with Galactic rotation, have unknown distances and masses and controversial origins. One...
HST Observations of the White Dwarf Cooling Sequence of M4 (2004)
Hansen, Brad, Richer, Harvey, Fahlman, Greg, Stetson, Peter, Brewer, James, Currie, Thayne, ...
We investigate in detail the white dwarf cooling sequence of the globular cluster Messier 4. In particular we study the influence of various systematic uncertainties, both observational and...
Top-Down Fragmentation of a Warm Dark Matter Filament (2003)
Knebe, Alexander, Devriendt, Julien, Gibson, Brad, Silk, Joseph
We present the first high-resolution n-body simulations of the fragmentation of dark matter filaments. Such fragmentation occurs in top-down scenarios of structure formation, when the dark matter is...
The Hubble Constant from the HST Key Project on the Extragalactic Distance Scale (1999)
Ferrarese, Laura, Gibson, Brad, Kelson, Daniel, Sakai, Shoko, Mould, Jeremy, Freedman, Wendy, ...
The final efforts of the HST Key Project on the Extragalactic Distance Scale are presented. Four distance indicators, the Surface Brightness Fluctuation method, the Fundamental Plane for early-type...
Madore, Barry F., Freedman, Wendy L., Silbermann, N., Harding, Paul, Huchra, John, Mould, Jeremy, ...
Using the Hubble Space Telescope (HST) 37 long-period Cepheid variables have been discovered in the Fornax Cluster spiral galaxy NGC 1365. The resulting V and I period-luminosity relations yield a...
Mitochondrial Oxidative Stress Causes Hyperphosphorylation of Tau
Melov, Simon, Adlard, Paul A., Morten, Karl, Johnson, Felicity, Golden, Tamara R., Hinerfeld, Doug, ...
Age-related neurodegenerative disease has been mechanistically linked with mitochondrial dysfunction via damage from reactive oxygen species produced within the cell. We determined whether increased...