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Detection of a cosmic microwave background decrement towards a cluster of mJy radio sources

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 331:1 (2002) 1-6

Authors:

G Cotter, HJ Buttery, S Rawlings, S Croft, GJ Hill, P Gay, R Das, N Drory, K Grainge, WF Grainger, ME Jones, GG Pooley, R Saunders
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Distinguishing local and global influences on galaxy morphology:: A Hubble Space Telescope comparison of high and low X-ray luminosity clusters

ASTROPHYSICAL JOURNAL 566:1 (2002) 123-136

Authors:

ML Balogh, I Smail, RG Bower, BL Ziegler, GP Smith, RL Davies, A Gaztelu, JP Kneib, H Ebeling
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Evidence for a non-zero Λ and a low matter density from a combined analysis of the 2dF Galaxy Redshift Survey and cosmic microwave background anisotropies

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 330:2 (2002) L29-L35

Authors:

G Efstathiou, S Moody, JA Peacock, WJ Percival, C Baugh, J Bland-Hawthorn, T Bridges, R Cannon, S Cole, M Colless, C Collins, W Couch, G Dalton, R De Propris, SP Driver, RS Ellis, CS Frenk, K Glazebrook, C Jackson, O Lahav, I Lewis, S Lumsden, S Maddox, P Norberg, BA Peterson, W Sutherland, K Taylor
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Galaxy properties in low X-ray luminosity clusters at z=0.25

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 337:1 (2002) 256-274

Authors:

M Balogh, RG Bower, I Smail, BL Ziegler, RL Davies, A Gaztelu, A Fritz
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IFS and IR observations of star clusters in the Antennae

IAU SYMP 207 (2002) 378-382

Authors:

S Mengel, MD Lehnert, N Thatte, R Genzel

Abstract:

Over the past decade, it has become clear that interaction induced formation of compact young star clusters is a ubiquitous pheonomenon, and the understanding of this process is thought to also shed light on galaxy evolution in general, because these young clusters are widely believed to be the progenitors of a part of the globular cluster systems seen in local elliptical galaxies. We have observed the prototypical merger NGC 4038/4039 using near-infrared broad- and narrow band imaging, integral field spectroscopy and medium and high resolution spectroscopy. We find that all of the bright star clusters are young (< 20 Myrs), but the "overlap region" hosts the youngest clusters (similar to5 Myrs), while the nuclear starbursts started similar to100 Myrs ago. Photometric and dynamical masses range from 10(5) to a few x 10(6)M(circle dot). However, mass-to-light ratios vary from cluster to cluster and suggest differences in the contribution of low-mass stars. While clusters with a deficiency in low-mass stars are likely to evaporate before they are a Hubble time old, those with a high mass-to-light-ratio could represent young globulars.
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