225 citations · 925 across the 13 of their papers we have counts for
13 papers
Tidal disruption rates of stars in observed galaxies
D. Syer, A. Ulmer
We derive the rates of capture, Ndot, of main sequence turn off stars by the central massive black hole in a sample of galaxies from Magorrian et al. 1998. The disruption rates are…
Observational constraints on disk galaxy formation
D. Syer, Shude Mao, H. J. Mo
We use data from the literature to constrain theoretical models of galaxy formation. We show how to calculate the dimensionless spin parameter of the halos of disk galaxies and…
Survival of Substructure within Dark Matter Haloes
Giuseppe Tormen, Antonaldo Diaferio, David Syer
Using high resolution cosmological N-body simulations, we investigate the survival of dark matter satellites falling into larger haloes. Satellites preserve their identity for some…
Global stability and the mass-to-light ratio of galactic disks
D. Syer, Shude Mao, H. J. Mo
We examine the global stability of an exponential stellar disk embedded in a dark matter halo and constrain the mass-to-light ratio of observed disks in the I-band, Y_I. Assuming o…
Density cusps: restrictions on non-axisymmetric models
D. Syer, HongSheng Zhao
Galactic nuclei are now generally thought to have density cusps in their centres, and the evidence is mounting that as a consequence they are unlikely to be triaxial. Self-consiste…
Dark halo mergers and the formation of a universal profile
D. Syer, Simon D. M. White
We argue that a universal density profile for dark matter halos arises as a natural consequence of hierarchical structure formation. It is a fixed point in the process of repeated…