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Searching for Bulges at the End of the Hubble Sequence
Torsten Boeker, Rebecca Stanek, Roeland P. van der Marel
We investigate the stellar disk properties of a sample of 19 nearby spiral galaxies with low inclination and late Hubble type (Scd or later). We combine our high-resolution HST I-b…
Hubble Space Telescope Imaging of Brightest Cluster Galaxies
Seppo Laine, Roeland P. van der Marel, Tod R. Lauer +3
We used the HST WFPC2 to obtain I-band images of the centers of 81 brightest cluster galaxies (BCGs), drawn from a volume-limited sample of nearby BCGs. The images show a rich vari…
Hubble Space Telescope Evidence for an Intermediate-Mass Black Hole in the Globular Cluster M15: II. Kinematical Analysis and Dynamical Modeling
Joris Gerssen, Roeland P. van der Marel, Karl Gebhardt +3
We analyze HST/STIS spectra (see Paper I) of the central region of the dense globular cluster M15. We infer the velocities of 64 individual stars, two-thirds of which have their ve…
Addendum: "Hubble Space Telescope Evidence for an Intermediate-Mass Black Hole in the Globular Cluster M15: II. Kinematical Analysis and Dynamical Modeling"
Joris Gerssen, Roeland P. van der Marel, Karl Gebhardt +3
It has been reported that there is an error in the figure in Dull et al. (1997, D97) that shows the radial M/L profile in Fokker-Planck models of M15. We discuss how this modifies…
Hubble Space Telescope Evidence for an Intermediate-Mass Black Hole in the Globular Cluster M15: I. STIS Spectroscopy and WFPC2 Photometry
Roeland P. van der Marel, Joris Gerssen, Puragra Guhathakurta +2
In this series of two papers we describe a project with STIS on HST to measure the line-of-sight velocities of stars in the central few arcsec of the dense globular cluster M15. Th…
Gas Kinematics and the Black Hole Mass at the Center of the Radio Galaxy NGC 4335
Gijs Verdoes Kleijn, Roeland van der Marel, Tim de Zeeuw +2
(abridged) We investigate the kinematics of the central gas disk of the radio-loud elliptical galaxy NGC 4335, derived from HST/STIS long-slit spectroscopic observations of Halpha+…