51 citations · 52 across the 6 of their papers we have counts for
14 papers
MACHOs in M31? Absence of evidence but not evidence of absence
Jelte T. A. de Jong, Lawrence M. Widrow, Patrick Cseresnjes +9
We present results of a microlensing survey toward the Andromeda Galaxy (M31) carried out during four observing seasons at the Isaac Newton Telescope (INT). This survey is part of…
Stellar Kinematics of the Bulge from HST Proper Motion Measurements
Konrad Kuijken
I report on an ongoing programme of proper motion measurements in the Galactic Bulge, using HST images. As a first application, the data are used to derive the vertical gravitation…
Early-type Galaxy Halo Dynamics inferred using the PN Spectrograph
N. G. Douglas, A. J. Romanowsky, K. Kuijken +6
A new instrument is providing crucial data with which to probe the structure of dark halos in elliptical galaxies.
Elliptical Galaxies: Darkly Cloaked or Scantily Clad?
A. J. Romanowsky, N. G. Douglas, K. Kuijken +7
Planetary nebulae (PNe) may be the most promising tracers in the halos of early-type galaxies. We have used multi-object spectrographs on the WHT and the VLT, and the new Planetary…
Is there a dichotomy in the Dark Matter as well as in the Baryonic Matter properties of ellipticals?
N. R. Napolitano, M. Capaccioli, M. Arnaboldi +5
We have found a correlation betwen the M/L global gradients and the structural parameters of the luminous components of a sample of 19 early-type galaxies. Such a correlation suppo…
Modern Techniques in Galaxy Kinematics: CDI and the Planetary Nebula Spectrograph
N. G. Douglas, K. Kuijken, A. J. Romanowsky +4
We report here the successful commissioning of the PN.Spectrograph, the first special-purpose instrument for the measurement of galaxy kinematics through the PN population