Galaxy formation and evolution

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The Stellar Populations of E and S0 Galaxies as Seen with SAURON

ESO Astrophysics Symposia Springer Nature (2007) 123-128

Authors:

H Kuntschner, E Emsellem, R Bacon, M Bureau, M Cappellari, RL Davies, T Zeeuw, J Falcón-Barroso, D Krajnović, RM McDermid, RF Peletier, M Sarzi
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The United Kingdom Infrared Telescope Infrared Deep Sky Survey first data release

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 375:1 (2007) 213-226

Authors:

SJ Warren, NC Hambly, S Dye, O Almaini, NJG Cross, AC Edge, S Foucaud, PC Hewett, ST Hodgkin, MJ Irwin, RF Jameson, A Lawrence, PW Lucas, AJ Adamson, RM Bandyopadhyay, J Bryant, RS Collins, CJ Davis, JS Dunlop, JP Emerson, DW Evans, EA Gonzales-Solares, P Hirst, MJ Jarvis, TR Kendall, TH Kerr, SK Leggett, JR Lewis, RG Mann, RJ McLure, RG McMahon, DJ Mortlock, MG Rawlings, MA Read, M Riello, C Simpson, DJB Smith, ETW Sutorius, TA Targett, WP Varricatt
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The horizon project database

ASTRONOMICAL DATA ANALYSIS SOFTWARE AND SYSTEMS XVI 376 (2007) 358-+

Authors:

Jean-Paul Le Fevre, Herve Wozniak, Julien Devriendt, Romain Teyssier
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The local galaxy 8 μm luminosity function

ASTROPHYSICAL JOURNAL 664:2 (2007) 840-849

Authors:

J-S Huang, MLN Ashby, P Barmby, M Brodwin, MJI Brown, N Caldwell, RJ Cool, P Eisenhardt, D Eisenstein, GG Fazio, E Le Floc'h, P Green, CS Kochanek, Nanyao Lu, MA Pahre, D Rigopoulou, JL Rosenberg, HA Smith, Z Wang, CNA Willmer, SP Willner
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The stellar Populations of E and SO galaxies as seen with SAURON

ESO ASTROPHY SYMP (2007) 123-128

Authors:

H Kuntschner, E Emsellem, R Bacon, M Bureau, M Cappellari, RL Davies, T de Zeeuw, J Falcon-Barroso, D Krajnovic, RM McDermid, RF Peletier, M Serzi

Abstract:

We present selected results from integral-field spectroscopy of 48 early-type galaxies observed as part of the SAURON survey. Maps of the H beta, Fe5015, Mgb and Fe5270 indices in the Lick/IDS system were derived for each of the survey galaxies. The metal line strength maps show generally negative gradients with increasing radius roughly consistent, with the morphology of the light profiles. Remarkable deviations from this general trend exist, particularly the Mg b isoindex contours appear to be flatter than the isophotes of the surface brightness for about 40% of our galaxies without significant dust features. Generally these galaxies exhibit significant rotation. We infer from this that the fast-rotating component features a higher metallicity and/or an increased Mg/Fe ratio, as compared to the galaxy as a whole.We also use the line strength maps to compute average values integrated over circular apertures of one effective radius, and derive luminosity weighted ages and metallicities. The lenticular galaxies show a, wide range in age and metallicity estimates, while elliptical galaxies tend to occupy regions of older stellar populations.
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