Galaxy formation and evolution

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The shapes and ages of elliptical galaxies

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 285:1 (1997) L1-L4

Authors:

RS deJong, RL Davies
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The variable UV central spike of NGC 4552

ASTR SOC P 117 (1997) 545-549

Authors:

M Cappellari, D Burstein, LM Buson, SD Alighieri, L Greggio, A Renzini, J Funes, F Bertola

Abstract:

The nature of the UV-bright spike at the center of the otherwise normal galaxy NGC 4552 is investigated by means of both Hubble Space Telescope (HST) imaging (FOC) and spectroscopy (FOS). This central feature-which underwent a recent dramatic UV flare-provides a potential new tool for revealing the presence of massive black holes in normal galaxies. In particular the sub-arcsec FOS spectra of the nucleus suggest that NGC 4552 does harbor an object with mass M > 4 x 10(8) M. within the central 2 pc.
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Two-component dynamical models of NGC 3377

ASTR SOC P 116 (1997) 95-96

Authors:

J Magorrian, C Scorza
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Optical and infrared investigation towards the z=3.8 quasar pair PC1643+4631A&B

(1996)

Authors:

Richard Saunders, Joanne C Baker, Malcolm N Bremer, Andrew J Bunker, Garret Cotter, Steve Eales, Keith Grainge, Toby Haynes, Michael E Jones, Mark Lacy, Guy Pooley, Steve Rawlings
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A radio galaxy at redshift 4.41

Nature Springer Nature 383:6600 (1996) 502-505

Authors:

Steve Rawlings, Mark Lacy, Katharine M Blundell, Stephen A Eales, Andrew J Bunker, Simon T Garrington
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