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Stellar Velocity Profiles and Line-Strengths out to Four Effective Radii in the Early-Type Galaxy NGC 3379
A. Weijmans, M. Cappellari, P. T. de Zeeuw +6
We describe a new technique to measure stellar kinematics and line-strengths at large radii in nearby galaxies. Using the integral-field spectrograph SAURON as a 'photon-collector'…
The shape of the dark matter halo in the early-type galaxy NGC 2974
Anne-Marie Weijmans, Davor Krajnovic, Glenn van de Ven +3
We present HI observations of the elliptical galaxy NGC 2974, obtained with the Very Large Array. These observations reveal that the previously detected HI disc in this galaxy (Kim…
VADER - A Satellite Mission Concept For High Precision Dark Energy Studies
Rene Fassbender, Jutta Stegmaier, Anne-Marie Weijmans +8
We present a satellite mission concept to measure the dark energy equation of state parameter w with percent-level precision. The Very Ambitious Dark Energy Research satellite (VAD…
Neutral hydrogen in nearby elliptical and lenticular galaxies: the continuing formation of early-type galaxies
R. Morganti, P. T. de Zeeuw, T. A. Oosterloo +6
(Abridged) We present deep WSRT observations of neutral hydrogen in 12 nearby elliptical and lenticular galaxies. The selected objects come from a representative sample of nearby g…