5 papers
The Vertical Structure of Stars in Edge-on Galaxies
Anil Seth, Julianne Dalcanton, Roelof de Jong
We present a summary of our recent work on the vertical distribution of the resolved stellar populations in six low mass, edge-on, spiral galaxies observed with the Hubble Space Te…
Properties of Dark Matter Halos in Disk Galaxies
Roelof S. de Jong, Susan Kassin, Eric F. Bell +1
We present a simple technique to estimate mass-to-light (M/L) ratios of stellar populations based on two broadband photometry measurements, i.e. a color-M/L relation. We apply the…
The Space Density of Spiral Galaxies as function of their Luminosity, Surface Brightness and Scalesize
Roelof S. de Jong, Cedric Lacey
The local space density of galaxies as a function of their basic structural parameters --like luminosity, surface brightness and scalesize-- is still poorly known. Our poor knowled…
B, V, R, I, H and K Images of 86 Face-On Spiral Galaxies
Roelof S. de Jong
FITS images in the B, V, R, I, H and K passbands are presented of a sample of 86 face-on spiral galaxies. The galaxies were selected from the UGC to have a diameter of at least 2 a…
Near-infrared and optical broadband surface photometry of 86 face-on disk dominated galaxies. II. A two-dimensional method to determine bulge and disk parameters
Roelof S. de Jong
In this paper I present a new two-dimensional decomposition technique, which models the surface photometry of a galaxy with an exponential light profile for both bulge and disk and…