Simulations of dwarf galaxy formation:
Gespeichert in:
| 1. Verfasser: | |
|---|---|
| Format: | Abschlussarbeit Buch |
| Sprache: | English |
| Veröffentlicht: |
München
Verl. Dr. Hut
2011
|
| Ausgabe: | 1. Aufl. |
| Schriftenreihe: | Physik
|
| Schlagworte: | |
| Online-Zugang: | Inhaltstext kostenfrei Inhaltsverzeichnis |
| Beschreibung: | 166 S. graph. Darst. 240 mm x 170 mm, 364 g |
| ISBN: | 9783868539950 3868539956 |
Internformat
MARC
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Datensatz im Suchindex
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| adam_text |
IMAGE 1
CONTENTS
OUTLINE 1
SUMMARY 7
ZUSAMMENFASSUNG (SUMMARY IN GERMAN) 9
1 INTRODUCTION 11
1.1 MOTIVATION 11
1.2 THE HOMOGENEOUS UNIVERSE 12
1.2.1 THE EXPANDING UNIVERSE 13
1.3 STRUCTURE FORMATION 16
1.3.1 LINEAR THEORY 17
1.3.2 COLLAPSE 20
1.3.3 KINEMATIC PERTURBATION THEORY 21
1.3.4 WARM DARK MATTER 23
1.4 GALAXY FORMATION 25
1.4.1 PHYSICAL MECHANISMS 25
1.5 DWARF GALAXIES 27
1.5.1 CLASSIFICATION 27
1.5.2 DARK MATTER 29
1.5.3 OBSERVATIONS 30
1.5.4 FORMATION SCENARIOS 31
1.5.5 EVIDENCE FOR ENVIRONMENTAL EFFECTS 31
1.5.6 DWARF GALAXIES AS BUILDING BLOCKS? 34
2 METHODS 35
2.1 INITIAL CONDITIONS 36
2.1.1 ADDITION OF GAS 39
2.2 NUMERICAL INTEGRATION 40
2.2.1 GRAVITY 40
2.2.2 HYDRODYNAMICS 41
2.2.3 RESOLUTION 43
3 THE FORMATION OF DWARF SPHEROIDAL GALAXIES IN ISOLATION 47 3.1
INTRODUCTION 48
3.2 METHODS 51
3.2.1 COOLING 51
3.2.2 STAR FORMATION 51
3.2.3 MULTIPHASE INTERSTELLAR MEDIUM AND FEEDBACK 53
3.2.4 UV BACKGROUND 54
BIBLIOGRAFISCHE INFORMATIONEN HTTP://D-NB.INFO/1014217466
DIGITALISIERT DURCH
IMAGE 2
CONTENTS
3.2.5 INITIAL CONDITIONS 55
3.2.6 EFFECTS OF RESOLUTION 56
3.3 FORMATION AND EVOLUTION 57
3.3.1 TIME EVOLUTION 57
3.4 THE ROLE OF PHYSICAL PROCESSES 60
3.4.1 THE IMPORTANCE OF FEEDBACK 62
3.4.2 THE INFLUENCE OF THE UV BACKGROUND 63
3.4.3 THE EFFECT OF SELF-SHIELDING 66
3.4.4 THE ROLE OF LOW TEMPERATURE COOLING 70
3.5 EXPLORING THE PARAMETER SPACE 71
3.5.1 TOTAL MASS: SCALING RELATIONS 71
3.5.2 KINEMATICS 76
3.5.3 STAR FORMATION EFFICIENCY 77
3.5.4 SUPERNOVA-PROGENITOR LIFETIMES 78
3.6 SUMMARY 80
THE FORMATION OF THE LOCAL GROUP DWARF GALAXIES 85
4.1 INTRODUCTION 86
4.2 THE AQUILA SIMULATION 88
4.2.1 INITIAL CONDITIONS 88
4.2.2 COMPUTATIONAL METHODS 88
4.2.3 IDENTIFICATION OF SUBSTRUCTURE 90
4.3 TIME EVOLUTION OF THE AQUILA SIMULATION 91
4.4 FORMATION AND EVOLUTION OF SATELLITES 96
4.4.1 GAS LOSS BY EXAMPLE 96
4.5 TWO EXTREME CASES 99
4.5.1 SATELLITE GALAXIES WITH GAS 100
4.6 SCALING RELATIONS 101
4.6.1 STELLAR MASS - HALO MASS 101
4.6.2 STELLAR POPULATIONS 104
4.7 ISOLATED DWARF GALAXIES 105
4.8 SUMMARY 109
WHAT IS THE (DARK) MATTER WITH DWARF GALAXIES? 115
5.1 INTRODUCTION 116
5.2 REVIEW OF PREVIOUS WORK 117
5.3 INITIAL CONDITIONS 119
5.4 NUMERICAL METHODS 123
5.4.1 GRAVITATIONAL SOFTENING 123
5.4.2 COOLING AND UV BACKGROUND 123
5.4.3 STAR FORMATION CRITERIA 124
IMAGE 3
CONTENTS
5.4.4 STAR FORMATION EFFICIENCY 124
5.4.5 MULTIPHASE INTERSTELLAR MEDIUM AND FEEDBACK 125 5.5 GALAXY
FORMATION 126
5.5.1 GALAXY EVOLUTION 126
5.5.2 GALAXY PROPERTIES 130
5.6 STELLAR MASS - HALO MASS RELATION 131
5.7 SUMMARY 137
6 THE DWARF GALAXY POPULATION IN SEMI-ANALYTICAL MODELS 139 6.1
INTRODUCTION 139
6.1.1 FROM GALAXIES TO GALAXY POPULATIONS (AND BACK) 141 6.2 DIFFERENT
SEMI-ANALYTICAL MODELS 142
6.3 COMMON INITIAL CONDITIONS 143
6.4 BLIND COMPARISON 143
6.5 CONNECTING BOTH METHODS 146
6.6 EXTRAPOLATION 146
6.7 OUTLOOK 150
REMARKS 151
ACKNOWLEDGEMENTS 153
BIBLIOGRAPHY 154 |
| any_adam_object | 1 |
| author | Sawala, Till |
| author_facet | Sawala, Till |
| author_role | aut |
| author_sort | Sawala, Till |
| author_variant | t s ts |
| building | Verbundindex |
| bvnumber | BV039563577 |
| collection | ebook |
| ctrlnum | (OCoLC)751038639 (DE-599)DNB1014217466 |
| dewey-full | 523.112 |
| dewey-hundreds | 500 - Natural sciences and mathematics |
| dewey-ones | 523 - Specific celestial bodies and phenomena |
| dewey-raw | 523.112 |
| dewey-search | 523.112 |
| dewey-sort | 3523.112 |
| dewey-tens | 520 - Astronomy and allied sciences |
| discipline | Physik Geographie |
| edition | 1. Aufl. |
| format | Thesis Book |
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| spelling | Sawala, Till Verfasser aut Simulations of dwarf galaxy formation Till Sawala 1. Aufl. München Verl. Dr. Hut 2011 166 S. graph. Darst. 240 mm x 170 mm, 364 g txt rdacontent n rdamedia nc rdacarrier Physik Zugl.: München, Univ., Diss., 2011 Entstehung (DE-588)4156614-2 gnd rswk-swf Zwerggalaxie (DE-588)4253341-7 gnd rswk-swf Numerisches Verfahren (DE-588)4128130-5 gnd rswk-swf (DE-588)4113937-9 Hochschulschrift gnd-content Zwerggalaxie (DE-588)4253341-7 s Entstehung (DE-588)4156614-2 s Numerisches Verfahren (DE-588)4128130-5 s DE-604 Erscheint auch als Online-Ausgabe urn:nbn:de:bvb:19-132531 Erscheint auch als Online-Ausgabe Sawala, Till Simulations of dwarf galaxy formation X:MVB text/html http://deposit.dnb.de/cgi-bin/dokserv?id=3865814&prov=M&dok_var=1&dok_ext=htm Inhaltstext http://edoc.ub.uni-muenchen.de/13253/ Verlag kostenfrei Volltext DNB Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=024415184&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Sawala, Till Simulations of dwarf galaxy formation Entstehung (DE-588)4156614-2 gnd Zwerggalaxie (DE-588)4253341-7 gnd Numerisches Verfahren (DE-588)4128130-5 gnd |
| subject_GND | (DE-588)4156614-2 (DE-588)4253341-7 (DE-588)4128130-5 (DE-588)4113937-9 |
| title | Simulations of dwarf galaxy formation |
| title_auth | Simulations of dwarf galaxy formation |
| title_exact_search | Simulations of dwarf galaxy formation |
| title_full | Simulations of dwarf galaxy formation Till Sawala |
| title_fullStr | Simulations of dwarf galaxy formation Till Sawala |
| title_full_unstemmed | Simulations of dwarf galaxy formation Till Sawala |
| title_short | Simulations of dwarf galaxy formation |
| title_sort | simulations of dwarf galaxy formation |
| topic | Entstehung (DE-588)4156614-2 gnd Zwerggalaxie (DE-588)4253341-7 gnd Numerisches Verfahren (DE-588)4128130-5 gnd |
| topic_facet | Entstehung Zwerggalaxie Numerisches Verfahren Hochschulschrift |
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