Is the giant elliptical galaxy NGC 5018 a post-merger remnant?
ASTRONOMY & ASTROPHYSICS 423:3 (2004) 965-968
OASIS high-resolution integral field spectroscopy of the SAURON ellipticals and lenticulars
ASTRON NACHR 325:2 (2004) 100-103
Abstract:
We present a summary of high-spatial resolution follow-up observations of the elliptical (E) and lenticular (SO) galaxies in the SAURON survey using the OASIS integral field spectrograph. The OASIS observations explore the central 8" x 10" regions of these galaxies using a spatial sampling four times higher than SAURON, often revealing previously undiscovered features. Around 75% (31/48) of the SAURON E/SOs with central velocity dispersion greater than or similar to 120 kin s(-1) were observed with OASIS, covering well the original SAURON representative sample. We present here an overview of this follow-up survey, and some preliminary results on individual objects, including a previously unreported counter-rotating core in NGC4382; the decoupled stellar and gas velocity fields of NGC 2768; and the strong age gradient towards the centre of NGC 3489.Orbital structure of triaxial galaxies
IAU SYMP (2004) 179-180
Abstract:
We have developed a method to construct realistic triaxial dynamical models for elliptical galaxies, allowing us to derive best-fitting parameters, such as the mass-to-light ratio and the black hole mass, and to study the orbital structure. We use triaxial theoretical Abel models to investigate the robustness of the method.Parametric recovery of line-of-sight velocity distributions from absorption-line spectra of galaxies via penalized likelihood
PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC 116:816 (2004) 138-147
SAURON dynamical modeling of NGC 2974
IAU SYMP (2004) 305-306