The structure of dark and luminous matter in early-type galaxies
Weijmans, A.M.
Citation
Weijmans, A. M. (2009, September 9). The structure of dark and luminous matter in early-type galaxies. Retrieved from https://hdl.handle.net/1887/13970
Version: Corrected Publisher’s Version
License: Licence agreement concerning inclusion of doctoral thesis in the Institutional Repository of the University of Leiden Downloaded from: https://hdl.handle.net/1887/13970
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The Structure of
Dark and Luminous Matter
in Early-Type Galaxies
The Structure of
Dark and Luminous Matter in Early-Type Galaxies
Proefschrift
ter verkrijging van
de graad van Doctor aan de Universiteit Leiden,
op gezag van de Rector Magnificus prof. mr. P.F. van der Heijden, volgens besluit van het College voor Promoties
te verdedigen op woensdag 9 september 2009 klokke 16.15 uur
door
Anne-Marie Weijmans
geboren te Boxmeer in 1981
Promotiecommissie
Promotor: Prof. dr. P. T. de Zeeuw
Overige leden: Prof. dr. R. G. Bower (Durham University) Prof. dr. M. Franx
Prof. dr. A. Helmi (Rijksuniversiteit Groningen) Prof. dr. K. H. Kuijken
Dr. R. Morganti (ASTRON / Rijksuniversiteit Groningen) Dr. J. Schaye
voor mama
Omslag:De Sterrenplukster door Clemens Weijmans
Table of Contents
1 Introduction 1
1.1 Dark matter . . . 1
1.2 Dark matter in early-type galaxies . . . 2
1.3 Integral-field spectrography . . . 4
1.4 Dynamical models . . . 5
1.5 Stellar halo populations . . . 5
1.6 This thesis . . . 6
1.7 Conclusions and outlook . . . 9
2 The dark matter halo in NGC 2974 11 2.1 Introduction . . . 12
2.2 Observations and data reduction . . . 14
2.3 Analysis of velocity fields . . . 17
2.4 Rotation curve. . . 21
2.5 Mass model and dark matter content . . . 29
2.6 Summary . . . 43
2.7 Appendix: Asymmetric drift correction in a thin disc . . . 46
3 Stellar velocity profiles out to 4Re 51 3.1 Introduction . . . 52
3.2 Observations and data reduction . . . 55
3.3 Stellar kinematics . . . 57
3.4 Line strengths . . . 62
3.5 Dynamical models . . . 70
3.6 Summary and conclusion . . . 79
4 The stellar and dark halo of NGC 2549 83 4.1 Introduction . . . 84
4.2 Observations and data reduction . . . 86
4.3 Extraction of kinematics and line strengths . . . 88
4.4 Stellar population models . . . 96
4.5 Dynamical models . . . 99
viii TABLE OF CONTENTS
4.6 Discussion and summary . . . 106
5 The emission halo of LAB1 109 5.1 Introduction . . . 110
5.2 Observations and data reduction . . . 112
5.3 Analysis . . . 114
5.4 Discussion and conclusion . . . 122
Colour figures 125
Bibliography 135
Publicatielijst 139
Nederlandse samenvatting 143
Curriculum vitae 155
Nawoord 157
TABLE OF CONTENTS ix
