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Measuring Large-Scale Structure with the 2dF Galaxy Redshift Survey

Chapter in Deep Fields, Springer Nature (2001) 221-230

Authors:

JA Peacock, the 2dFGRS Team
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Old galaxies at high redshift

ASTR SOC P 245 (2001) 569-574

Abstract:

We review the observational data available on the class of galaxies known as Extremely Red Objects (EROs), and present new data on their apparent surface density, which now appears to be much higher than has previously been claimed. We discuss the division of these objects into two distinct groups: young galaxies with dramatic ongoing star formation and old galaxies with highly evolved stellar populations. Age-determination for the latter group using population synthesis models is complicated by an intrinsic degeneracy between the age and initial metallicity of the stellar populations.
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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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