211 citations · 1.1k across the 31 of their papers we have counts for
7 papers · 1 filter
On the physical origin of dark matter density profiles
Y. Ascasibar, G. Yepes, S. Gottloeber +1
The radial mass distribution of dark matter haloes is investigated within the framework of the spherical infall model. We present a new formulation of spherical collapse including…
Coupling between satellite dwarfs and the Milky Way warp
Jeremy Bailin, Matthias Steinmetz
The perturbations of satellite galaxies, in particular the Large Magellanic Cloud (LMC), have been repeatedly proposed and discounted as the cause of the Milky Way warp. While the…
Integral-field spectroscopy of the quadruple QSO HE 0435-1223: Evidence for microlensing
L. Wisotzki, T. Becker, L. Christensen +5
We present the first spatially resolved spectroscopic observations of the recently discovered quadruple QSO and gravitational lens HE0435-1223. Using the Potsdam Multi-Aperture Spe…
The radial structure of galaxy groups and clusters
Y. Ascasibar, G. Yepes, V. Mueller +1
Simple self-consistent models of galaxy groups and clusters are tested against the results of high-resolution adiabatic gasdynamical simulations. We investigate two models based on…
Disentangling microlensing and differential extinction in the double QSO HE0512-3329
O. Wucknitz, L. Wisotzki, S. Lopez +1
We present the first separate spectra of both components of the small-separation double QSO HE0512-3329 obtained with HST/STIS in the optical and near UV. The similarities especial…
Roche tomography of cataclysmic variables -- II. Images of the secondary stars in AM Her, QQ Vul, IP Peg and HU Aqr
C. A. Watson, V. S. Dhillon, R. G. M. Rutten +1
We present a set of Roche tomography reconstructions of the secondary stars in the cataclysmic variables AM Her, QQ Vul, IP Peg and HU Aqr. The image reconstructions show distinct…