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On the dependence of spectroscopic indices of early-type galaxies on age, metallicity and velocity dispersion

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 323:3 (2001) 615-629

Authors:

H Kuntschner, JR Lucey, RJ Smith, MJ Hudson, RL Davies
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On the origin of the color-magnitude relation in the Virgo Cluster

ASTROPHYSICAL JOURNAL 551:2 (2001) L127-L130

Authors:

A Vazdekis, H Kuntschner, RL Davies, N Arimoto, O Nakamura, R Peletier
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Pattern speed measurements in two barred galaxies

ASTR SOC P 249 (2001) 78-84

Authors:

AJ Baker, E Schinnerer, NZ Scoville, PP Englmaier, LJ Tacconi, LE Tacconi-Garman, N Thatte

Abstract:

Knowledge of the pattern speed in a barred galaxy is an important prerequisite for determining the radii of its dynamical resonances. Once identified, these can in turn be used to constrain models for nuclear fueling and secular evolution. Here, we present measurements of the pattern speeds in two barred galaxies-one direct (in NGC 1068, using the Tremaine-Weinberg method in the near infrared) and one indirect (in NGC 7479, using a fit to three-dimensional molecular emission-line data). We find good evidence that a configuration of dynamically decoupled "bars within bars" is present in each system.
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Position-velocity diagrams in the inner regions of disk galaxies

ASTR SOC P 230 (2001) 277-278

Authors:

JG Funes, A Pizzella, EM Corsini, M Cappellari, MC Scarlata, F Bertola, JCV Beltran
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Probing the heart of an active galactic nucleus: NGC 1068

IAU SYMP (2001) 216-219

Authors:

M Tecza, N Thatte, R Maiolino

Abstract:

We present results from integral field spectroscopy of the narrow line region of NGC 1068, carried out with the MPE 3D near infrared imaging spectrometer. A map and velocity field of the [Fe II] fine structure line at 1.64mum is presented. The kinematics of the [Fe II] emission, which arises in partially ionized zones, shows red shifted emission in the north eastern cone of the NLR, and blue shifted emission in the south west, reversed relative to high ionization species such as [Si VI] or [0 111]. We propose a model geometry of the narrow line region which is consistent with existing data and explains the observed [Fe II] kinematics.
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