326 citations · 1.2k across the 11 of their papers we have counts for
9 papers · 1 filter
Comparing Dynamical and Stellar Population Mass-to-Light Ratio Estimates
Roelof S. de Jong, Eric Bell
We investigate the mass-to-light ratios of stellar populations as predicted by stellar population synthesis codes and compare those to dynamical/gravitational measurements. In Bell…
The local space density of Sb-Sdm galaxies as function of their scalesize, surface brightness and luminosity
Roelof S. de Jong, Cedric Lacey
We investigate the dependence of the local space density of spiral galaxies on luminosity, scalesize and surface brightness. We derive bivariate space density distributions in thes…
The space density of spiral galaxies as function of their scale size, surface brightness and luminosity
Roelof S. de Jong, Cedric Lacey
The local space density of galaxies as a function of their basic structural parameters -luminosity, surface brightness and scale size- is still poorly known. Our poor knowledge is…
The stellar populations of spiral galaxies
Eric F. Bell, Roelof S. de Jong
We have used a large sample of low-inclination spiral galaxies with radially-resolved optical and near-infrared photometry to investigate trends in star formation history with radi…
The Shapes and Ages of Elliptical Galaxies
Roelof S. de Jong, Roger L. Davies
In this paper we investigate the relation between the detailed isophotal shape of elliptical galaxies and the strength of the H beta absorption in their spectra. We find that disky…
Evidence for Secular Evolution in Late-Type Spirals
S. Courteau, R. S. de Jong, A. H. Broeils
We combine deep optical and IR photometry for 326 spiral galaxies from two recent galaxy samples and report that the surface brightness profiles of late-type spirals are best fit b…
NIR imaging and modeling of the core of M100
J. H. Knapen, R. F. Peletier, I. Shlosman +3
High-resolution NIR and optical images are used to constrain a dynamical model of the circumnuclear star forming (SF) region in the barred galaxy M100 (=NGC 4321). Subarcsecond res…
The Central Region in M100: Observations and Modeling
J. H. Knapen, J. E. Beckman, C. H. Heller +2
We present new high-resolution observations of the center of the late-type spiral M100 (NGC 4321) supplemented by 3D numerical modeling of stellar and gas dynamics, including star…
THE STRIKING NEAR-INFRARED MORPHOLOGY OF THE INNER REGION IN M100
J. H. Knapen, J. E. Beckman, I. Shlosman +3
New optical and NIR K-band images of the inner 3 kpc region of the nearby Virgo spiral M100 (NGC 4321) display remarkable morphological changes with wavelength. While in the optica…