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Galaxy density profiles and shapes -- II. selection biases in strong lensing surveys
Rachel Mandelbaum, Glenn van de Ven, Charles R. Keeton
[Abridged] Many current and future astronomical surveys will rely on samples of strong gravitational lens systems to draw conclusions about galaxy mass distributions. We use a new…
Galaxy density profiles and shapes -- I. simulation pipeline for lensing by realistic galaxy models
Glenn van de Ven, Rachel Mandelbaum, Charles R. Keeton
Studies of strong gravitational lensing in current and upcoming wide and deep photometric surveys, and of stellar kinematics from (integral-field) spectroscopy at increasing redshi…
The Einstein Cross: constraint on dark matter from stellar dynamics and gravitational lensing
Glenn van de Ven, Jesus Falcon-Barroso, Richard M. McDermid +3
[Abridged] We present two-dimensional line-of-sight stellar kinematics of the lens galaxy in the Einstein Cross, obtained with the GEMINI 8m telescope, using the GMOS integral-fiel…
Migration of Star Clusters and Nuclear Rings
Glenn van de Ven, Philip Chang
Star clusters that form in nuclear rings appear to be at slightly larger radii than the gas. We argue that the star clusters move out from the gas in which they are formed because…
Formation of central massive objects via tidal compression
Eric Emsellem, Glenn van de Ven
For a density that is not too sharply peaked towards the center, the local tidal field becomes compressive in all three directions. Available gas can then collapse and form a clust…
The kinematics of Core and Cusp galaxies: comparing HST imaging and integral-field observations
J. Falcón-Barroso, R. Bacon, M. Cappellari +9
In this proceeding we look at the relationship between the photometric nuclear properties of early-type galaxies from Hubble Space Telescope imaging and their overall kinematics as…
The distribution of maser stars in the inner Milky Way: the effect of a weak, rotating bar
H. J. Habing, M. N. Sevenster, M. Messineo +4
We derive the distribution of maser stars in the inner Milky Way (MW) based on an analysis of lV-diagrams (lVd) for two samples of maser stars: 771 OH/IR stars and 363 SiO-maser st…
The dynamical M/L-profile and distance of the globular cluster M15
Remco van den Bosch, Tim de Zeeuw, Karl Gebhardt +2
We construct orbit-based axisymmetric dynamical models for the globular cluster M15 which fit groundbased line-of-sight velocities and Hubble Space Telescope line-of-sight velociti…
A Bar Signature and Central Disk in the Gaseous and Stellar Velocity Fields of NGC5448
Kambiz Fathi, Glenn van de Ven, Reynier F. Peletier +4
We analyse SAURON kinematic maps of the inner kpc of the early-type (Sa) barred spiral galaxy NGC5448. The observed morphology and kinematics of the emission-line gas is patchy and…
Two-dimensional Kinematics of a Bar and Central Disk in NGC5448
K. Fathi, G. van de Ven, R. Peletier +4
We analyse SAURON kinematic maps of the inner kpc of the early-type (Sa) barred spiral galaxy NGC 5448. The observed morphology and kinematics of the emission-line gas is patchy an…
The SAURON project - IV. The mass-to-light ratio, the virial mass estimator and the fundamental plane of elliptical and lenticular galaxies
M. Cappellari, R. Bacon, M. Bureau +12
We investigate with unprecedented accuracy the correlations between the dynamical mass-to-light ratio M/L and other global observables of E and S0 galaxies. We construct two-integr…
A SAURON view of galaxies
E. K. Verolme, M. Cappellari, G. van de Ven +10
We have measured the two-dimensional kinematics and line-strength distributions of 72 representative nearby early-type galaxies, out to approximately one effective radius, with our…
Jeans solutions for triaxial galaxies
Glenn van de Ven, Chris Hunter, Ellen Verolme +1
The Jeans equations relate the second-order velocity moments to the density and potential of a stellar system. For general three-dimensional stellar systems, there are three equati…