From the sun to the Galactic Center: dust, stars and black hole(s)
Gespeichert in:
| 1. Verfasser: | |
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| Format: | Abschlussarbeit Buch |
| Sprache: | English |
| Veröffentlicht: |
2013
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| Schlagworte: | |
| Online-Zugang: | kostenfrei http://d-nb.info/1037311493/34 https://nbn-resolving.org/urn:nbn:de:bvb:19-158581 Inhaltsverzeichnis |
| Beschreibung: | XVIII, 266 S. Ill., graph. Darst. |
Internformat
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| 100 | 1 | |a Fritz, Tobias |e Verfasser |4 aut | |
| 245 | 1 | 0 | |a From the sun to the Galactic Center |b dust, stars and black hole(s) |c Tobias Fritz |
| 264 | 1 | |c 2013 | |
| 300 | |a XVIII, 266 S. |b Ill., graph. Darst. | ||
| 336 | |b txt |2 rdacontent | ||
| 337 | |b n |2 rdamedia | ||
| 338 | |b nc |2 rdacarrier | ||
| 502 | |a München, Univ., Diss., 2013 | ||
| 655 | 7 | |0 (DE-588)4113937-9 |a Hochschulschrift |2 gnd-content | |
| 776 | 0 | 8 | |i Erscheint auch als |n Online-Ausgabe |o urn:nbn:de:bvb:19-158581 |
| 856 | 4 | 1 | |u http://edoc.ub.uni-muenchen.de/15858/ |x Verlag |z kostenfrei |3 Volltext |
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| 912 | |a ebook | ||
| 999 | |a oai:aleph.bib-bvb.de:BVB01-026194577 | ||
Datensatz im Suchindex
| _version_ | 1804150656711262208 |
|---|---|
| adam_text | IMAGE 1
CONTENTS
ZUSAMMENFASSUNG XV
SUMMARY XVII
1 THE GALACTIC CENTER AND ITS GALAXY 1
1.1 OUTER COMPONENTS 1
1.2 THE GALACTIC DISK 4
1.3 THE BULGE 6
1.4 THE CENTRAL MOLECULAR ZONE 10
1.5 THE NUCLEAR CLUSTER 15
1.6 THE O-STAR DISKS 23
1.7 B-STARS IN THE GC 26
1.8 THE SUPERMASSIVE BLACK HOLE SGR A* 29
1.9 GALAXY OVERVIEW AND TRANSITION 33
2 WHAT IS LIMITING NEAR-INFRARED ASTROMETRY IN THE GALACTIC CENTER? 37
2.1 INTRODUCTION 37
2.2 STATISTICAL UNCERTAINTY 39
2.3 ASTROMETRY IN THE GC 41
2.4 SYSTEMATIC UNCERTAINTIES 43
2.4.1 FAST ATMOSPHERIC LIMITATIONS 43
2.4.2 SLOW ATMOSPHERIC LIMITATIONS 47
2.4.3 INSTRUMENTAL LIMITATIONS 52
2.4.4 ANALYSIS LIMITATIONS 58
2.4.5 ASTROPHYSICAL LIMITATIONS 62
2.5 SUMMARY & CONCLUSION 65
3 GC-IRS13E - A PUZZLING ASSOCIATION OF THREE EARLY-TYPE STARS 69
3.1 INTRODUCTION 69
3.2 DATA SET 71
3.2.1 NACO 71
3.2.2 SINFONI 72
3.3 ASTROMETRY 72
HTTP://D-NB.INFO/1042306729
IMAGE 2
VI CONTENTS
3.3.1 IMAGE PROCESSING 72
3.3.2 OBJECT DETECTION 74
3.3.3 PROPER MOTIONS 74
3.4 CHARACTERIZATION OF THE OBJECTS 76
3.4.1 METHOD 77
3.4.2 INDIVIDUAL OBJECTS 77
3.5 PROBABILITY FOR AN IMBH IN IRS13E 83
3.5.1 STELLAR SURFACE DENSITY IN IRS13E 85
3.5.2 THE STRUCTURE OF IRS13E 85
3.5.3 THE OVERDENSITY OF YOUNG, MASSIVE, EARLY-TYPE STARS 87
3.5.4 CLUSTER MASS FROM VELOCITY DISPERSION 91
3.5.5 ACCELERATION LIMITS MAKE AN IMBH LESS LIKELY 92
3.5.6 PROPER MOTION OF SGR A* 94
3.5.7 TOTAL PROBABILITIES 95
3.6 DISCUSSION 96
3.6.1 DYNAMICS OF THE YOUNG, MASSIVE STARS 96
3.6.2 X-RAY AND RADIO EMISSION 98
3.7 CONCLUSIONS AND SUMMARY 100
3.8 APPENDIX 101
3.8.1 EXTRACTING THE SPECTRAL ENERGY DISTRIBUTIONS 101
3.8.2 INDIVIDUAL OBJECTS IN IRS13E 102
3.8.3 ASTROMETRIC DATA 107
4 LINE DERIVED INFRARED EXTINCTION TOWARD THE GALACTIC CENTER 109
4.1 INTRODUCTION 109
4.2 DATA SET 112
4.2.1 RADIO 112
4.2.2 ISO 114
4.2.3 SINFONI 114
4.3 CONSTRUCTION OF LINE MAPS AND FLUX CALIBRATION 117
4.3.1 LINE MAPS 117
4.3.2 FLUX CALIBRATION 117
4.4 DERIVING EXTINCTION FROM HYDROGEN LINES 118
4.4.1 ELECTRON TEMPERATURE 120
4.4.2 EXTINCTION CALCULATION 121
4.4.3 EXTINCTION DERIVED 126
4.5 DISCUSSION 127
4.5.1 COMPARISON WITH LITERATURE FOR THE GC 127
4.5.2 A PHOTOMETRIC DISTANCE TO THE GC 129
4.5.3 EXTINCTION TOWARD SGR A* 130
4.5.4 SPATIAL DISTRIBUTION OF THE EXTINCTION 131
4.5.5 THE NIR EXTINCTION 132
4.5.6 THE OPTICAL EXTINCTION 134
IMAGE 3
CONTENTS VII
4.5.7 THE MIR EXTINCTION 136
4.5.8 BROADBAND EXTINCTION CURVE 139
4.5.9 DUST MODELS 139
4.6 SUMMARY 144
4.7 APPENDIX 145
4.7.1 CORRECTING FOR THE FLATTENING BIAS 145
4.7.2 INTERPOLATING THE EXTINCTION CURVE 146
4.7.3 EFFECTIVE BROADBAND FILTER EXTINCTIONS 147
4.7.4 COMPARISON WITH OTHER METHODS FOR NIR SLOPE DETERMINATION . . .
149
5 THE NUCLEAR CLUSTER OF THE MILKY WAY I: TOTAL MASS AND LUMINOSITY 155
5.1 INTRODUCTION 156
5.2 DATA SET 157
5.2.1 HIGH RESOLUTION IMAGING 157
5.2.2 WIELD FIELD IMAGING 158
5.2.3 SPECTROSCOPY 158
5.3 DERIVATION OF VELOCITIES 159
5.3.1 PROPER MOTIONS 159
5.3.2 RADIAL VELOCITIES 161
5.3.3 SAMPLE CLEANING 164
5.4 LUMINOSITY PROPERTIES OF THE NUCLEAR CLUSTER 166
5.4.1 LITERATURE ABOUT THE LIGHT PROFILE OF THE GC 167
5.4.2 DERIVING DENSITY PROFILES 169
5.4.3 SPHERICAL FITTING OF THE STELLAR DENSITY PROFILE 172
5.4.4 FLATTENING OF THE CLUSTER 175
5.4.5 LUMINOSITY OF THE NUCLEAR CLUSTER 177
5.5 KINEMATIC ANALYSIS 179
5.5.1 BINNING 179
5.5.2 VELOCITY ANISOTROPY 181
5.5.3 ROTATION 181
5.5.4 JEANS MODELING 188
5.5.5 VELOCITY DISTRIBUTION AND FAST STARS 195
5.6 DISCUSSION 202
5.6.1 SMBH MASS BIAS 202
5.6.2 COMPARISON WITH THE LITERATURE 205
5.6.3 MASS CUSP OR CORE? 210
5.6.4 CUMULATED MASS PROFILE 211
5.6.5 MASS TO LIGHT RATIO .213
5.6.6 THE NUCLEAR CLUSTER OF THE MILKY WAY IN COMPARISON 216
5.7 CONCLUSIONS AND SUMMARY 218
5.8 APPENDIX 220
5.8.1 DERIVATION OF PROPER MOTIONS 220
5.8.2 OBTAINING THE LUMINOSITY PROPERTIES 228
IMAGE 4
VIII INHALTSVERZEICHNIS
5.8.3 TABULATED VALUES OF CUMULATIVE MASS PROFILES 234
CONCLUSIONS AND OUTLOOK 235
ACKNOWLEDGEMENTS 267
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| indexdate | 2024-07-10T00:42:24Z |
| institution | BVB |
| language | English |
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| physical | XVIII, 266 S. Ill., graph. Darst. |
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| spelling | Fritz, Tobias Verfasser aut From the sun to the Galactic Center dust, stars and black hole(s) Tobias Fritz 2013 XVIII, 266 S. Ill., graph. Darst. txt rdacontent n rdamedia nc rdacarrier München, Univ., Diss., 2013 (DE-588)4113937-9 Hochschulschrift gnd-content Erscheint auch als Online-Ausgabe urn:nbn:de:bvb:19-158581 http://edoc.ub.uni-muenchen.de/15858/ Verlag kostenfrei Volltext http://d-nb.info/1037311493/34 Langzeitarchivierung Nationalbibliothek https://nbn-resolving.org/urn:nbn:de:bvb:19-158581 Resolving-System DNB Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=026194577&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Fritz, Tobias From the sun to the Galactic Center dust, stars and black hole(s) |
| subject_GND | (DE-588)4113937-9 |
| title | From the sun to the Galactic Center dust, stars and black hole(s) |
| title_auth | From the sun to the Galactic Center dust, stars and black hole(s) |
| title_exact_search | From the sun to the Galactic Center dust, stars and black hole(s) |
| title_full | From the sun to the Galactic Center dust, stars and black hole(s) Tobias Fritz |
| title_fullStr | From the sun to the Galactic Center dust, stars and black hole(s) Tobias Fritz |
| title_full_unstemmed | From the sun to the Galactic Center dust, stars and black hole(s) Tobias Fritz |
| title_short | From the sun to the Galactic Center |
| title_sort | from the sun to the galactic center dust stars and black hole s |
| title_sub | dust, stars and black hole(s) |
| topic_facet | Hochschulschrift |
| url | http://edoc.ub.uni-muenchen.de/15858/ http://d-nb.info/1037311493/34 https://nbn-resolving.org/urn:nbn:de:bvb:19-158581 http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=026194577&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA |
| work_keys_str_mv | AT fritztobias fromthesuntothegalacticcenterduststarsandblackholes |