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18 papers · 2 filters
Parametric Recovery of Line-of-Sight Velocity Distributions from Absorption-Line Spectra of Galaxies via Penalized Likelihood
Michele Cappellari, Eric Emsellem
We investigate the accuracy of the parametric recovery of the line-of-sight velocity distribution (LOSVD) of the stars in a galaxy, while working in pixel space. Problems appear wh…
Axisymmetric dynamical models for SAURON and OASIS observations of NGC 3377
Y. Copin, N. Cretton, E. Emsellem
We present a unique set of nested stellar kinematical maps of NGC 3377 obtained with the integral-field spectrographs OASIS and SAURON. We then construct general axisymmetric dynam…
OASIS High-Resolution Integral Field Spectroscopy of the SAURON Ellipticals and Lenticulars
R. McDermid, E. Emsellem, M. Cappellari +12
We present a summary of high-spatial resolution follow-up observations of the elliptical (E) and lenticular (S0) galaxies in the SAURON survey using the OASIS integral field spectr…
Is there a dichotomy in the Dark Matter as well as in the Baryonic Matter properties of ellipticals?
N. R. Napolitano, M. Capaccioli, M. Arnaboldi +5
We have found a correlation betwen the M/L global gradients and the structural parameters of the luminous components of a sample of 19 early-type galaxies. Such a correlation suppo…
A Deep, High-Resolution Survey at 74 MHz
A. S. Cohen, H. J. A. Rottgering, M. J. Jarvis +2
We present a 74 MHz survey of a 165 square degree region located near the north galactic pole. This survey has an unprecedented combination of both resolution (25'' FWHM) and sensi…
Orbital structure of triaxial galaxies
Glenn van de Ven, Ellen Verolme, Michele Cappellari +1
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…