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Galaxy mapping with the SAURON integral-field spectrograph: The star formation history of NGC 4365

ASTROPHYSICAL JOURNAL 548:1 (2001) L33-L36

Authors:

RL Davies, H Kuntschner, E Emsellem, R Bacon, M Bureau, CM Carollo, Y Copin, BW Miller, G Monnet, RF Peletier, EK Verolme, PT de Zeeuw
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Gas and stellar kinematics in NGC 6240

IAU SYMP (2001) 220-221

Authors:

M Tecza, L Tacconi, R Genzel

Abstract:

We present results from sub-arcsecond near infrared integral field spectroscopy and millimeter IRAM-interferometry of the interacting galaxy NGC 6240. Using stellar absorption features in the NIR we determined the stellar velocity field and dispersion in NGC 6240. The two NIR emission peaks show rapid rotation and indicate a prograde encounter of the two progenitor galaxies. From the velocity dispersion an excess mass between the two nuclei is detected. This mass can be attributed to a massive rotating disk of cold CO gas located between the nuclei.
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Line-of-sight velocity distributions of low-luminosity elliptical galaxies

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 326:2 (2001) 473-489

Authors:

C Halliday, RL Davies, H Kuntschner, M Birkinshaw, R Bender, RP Saglia, G Baggley
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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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