Gravitational lensing:
Gespeichert in:
| 1. Verfasser: | |
|---|---|
| Format: | Buch |
| Sprache: | English |
| Veröffentlicht: |
Cambridge
Cambridge University Press
2017
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| Schlagworte: | |
| Online-Zugang: | Inhaltsverzeichnis Klappentext |
| Beschreibung: | xii, 224 Seiten Illustrationen, Diagramme (teilweise farbig) |
| ISBN: | 9781107129764 |
Internformat
MARC
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Datensatz im Suchindex
| _version_ | 1804177676614762496 |
|---|---|
| adam_text | Contents
A
Preface pagex
1 Overview 1
1.1 Multiple Images 4
1.2 Time Delay 5
1.3 Magnification 6
1.4 Microlens ing 6
1.5 Extended Lenses 8
1.6 Extended Sources 8
1.7 Diffuse Lenses 11
1.8 CMB Lensing 12
Exercises 15
2 Deflection of Light 17
2.1 Newtonian Deflection 17
2.2 Bridge 20
2.3 Deflection from a Point Mass in General Relativity 23
2.4 Shapiro Time Delay 25
2.5 Angular Vectors 28
2.6 Deflection by the Gravitational Potential 29
2.7 Thin Lens Approximation 32
2.8 Back to the Point Mass 35
Exercises 36
3 Multiple Images 38
3.1 Point Mass Lens 39
3.2 Spherically Symmetric Distribution 41
3.3 Isothermal Sphere 44
3.4 Caustics for the Cored Isothermal Sphere 50
3.5 Time Delays 53
Exercises 59
vii
viii Contents
4 Magnification 62
4.1 Magnification in Terms of the Distortion Tensor 63
4.2 Point Mass 66
4.3 Isothermal Sphere 68
4.4 Parity 72
4.5 Detection of Magnification 74
4.6 Using Lenses to Find Distant Galaxies 77
4.7 Multiple Image Systems and Flux Anomalies 79
Exercises 82
5 Microlensing 85
5.1 Dark Matter in the Galaxy 87
5.2 MACHO Microlensing 89
5.3 Exoplanets 95
5.4 Two Point Mass Lenses 97
5.5 Exoplanet Microlensing: Magnification 101
Exercises 105
6 Weak Lensing: Galaxy Shapes 108
6.1 The Effect of Shear 108
6.2 Ideal Relation Between Shear and Ellipticity 109
6.3 Weighting 112
6.4 Ellipticity and Shear with Weighting and Intrinsic Ellipticity 114
6.5 Correcting for the Point Spread Function 119
6.6 Forward Modeling 123
6.7 GREAT 126
Exercises 128
7 Mass from Shapes 132
7.1 Shear from a Spherical Distribution 132
7.2 Signal-to-Noise 135
7.3 Galaxy-Galaxy Lensing 137
7.4 Implications for Dark Matter 140
7.5 Distances in Cosmology 142
7.6 Galaxy Clusters 145
7.7 Cluster Lensing 149
7.8 Mass Maps 153
Exercises 159
8 Cosmic Shear 162
8.1 Standard Cosmological Model 164
Contents ix
8.2 Statistics of the Density Field 166
8.3 Cosmic Shear Decomposition 172
8.4 Statistics of Convergence 175
8.5 Errors on the Convergence Power Spectrum 180
8.6 Intrinsic Alignment 184
8.7 Tomography and Cosmological Parameters 188
Exercises 192
Lensing of the Cosmic Microwave Background 196
9.1 The Cosmic Microwave Background 196
9.2 Order of Magnitude Estimate 199
9.3 Impact of Convergence on the Acoustic Peaks 200
9.4 Inferring the Lensing Potential 202
9.5 Smoothing the Peaks and Troughs 205
Exercises 208
pendix A Numbers 210
pendix B Lensing Formulae 211
References 213
Index 220
Color plates section can be found between pages 116 and 117
GRAVITATIONAL LENSING
Gravitational lensing has become a ubiquitous tool in astronomy, from the search
for extrasolar planets to the quest to map the cosmic mass distribution. Dodelson s
book hits the nail right on the head, presenting the subject in the simplest way
possible, but still with all requisite rigor. A spectacular collection of problems
complements the presentation to make for an outstanding pedagogical tool.
This is a great book!
Marc Kamionkowski, Johns Hopkins University, USA
Gravitational lensing is a consequence of general relativity, where the gravitational
force due to a massive object bends the paths of light originating from distant objects
lying behind it. Using very little general relativity and no higher level mathematics, this
text presents the basics of gravitational lensing, focusing on the equations needed to
understand the phenomenon. It then applies them to a diverse set of topics, including
multiply imaged objects, time delays, extrasolar planets, microlensing, cluster masses,
galaxy shape measurements, cosmic shear, and lensing of the cosmic microwave
background. This approach allows undergraduate students and others to get quickly
up to speed on the basics and the important issues. The text will be especially relevant
as large surveys such as LSST and Euclid begin to dominate the astronomical landscape.
Designed for a one-semester course, it is accessible to anyone with two years of
undergraduate physics background.
SCOTT DODELSON is a Distinguished Scientist at Fermilab and Professor in the
Department of Astrophysics and Astronomy at the University of Chicago. He has
written more than 180 research papers on the connections between physics and
astronomy. He is the author of Modern Cosmology, a standard graduate textbook, and
he has recently taken leadership roles in surveys that employ gravitational lensing as
a tool to get at basic physics. Through these roles and by teaching courses devoted to
lensing, he realized that learning enough about lensing to begin research is both simple
and rewarding. This volume was written to help potential researchers at all levels learn
this fascinating, rapidly emerging field.
Cover illustration: ALMA(NRAO/ESO/NAOJ); B. Saxton
NRAO/AUI/NSF;NASA/ESA Hubble, T. Hunter (NRAO)
COVER DESIGNED BY HART McLEOD LTD
Cambridge
UNIVERSITY PRESS
www.cambridge.org
ISBN 978 1 107 12976-4
9 781 07 1 29764
|
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| illustrated | Illustrated |
| indexdate | 2024-07-10T07:51:52Z |
| institution | BVB |
| isbn | 9781107129764 |
| language | English |
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| physical | xii, 224 Seiten Illustrationen, Diagramme (teilweise farbig) |
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| spelling | Dodelson, Scott Verfasser (DE-588)1124614435 aut Gravitational lensing Scott Dodelson (Fermi National Accelerator Laboratory, Batavia, Illinois) Cambridge Cambridge University Press 2017 xii, 224 Seiten Illustrationen, Diagramme (teilweise farbig) txt rdacontent n rdamedia nc rdacarrier Gravitational lenses Gravitationslinse (DE-588)4210687-4 gnd rswk-swf Gravitationslinse (DE-588)4210687-4 s DE-604 Digitalisierung UB Bayreuth - ADAM Catalogue Enrichment application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=029799833&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis Digitalisierung UB Bayreuth - ADAM Catalogue Enrichment application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=029799833&sequence=000002&line_number=0002&func_code=DB_RECORDS&service_type=MEDIA Klappentext |
| spellingShingle | Dodelson, Scott Gravitational lensing Gravitational lenses Gravitationslinse (DE-588)4210687-4 gnd |
| subject_GND | (DE-588)4210687-4 |
| title | Gravitational lensing |
| title_auth | Gravitational lensing |
| title_exact_search | Gravitational lensing |
| title_full | Gravitational lensing Scott Dodelson (Fermi National Accelerator Laboratory, Batavia, Illinois) |
| title_fullStr | Gravitational lensing Scott Dodelson (Fermi National Accelerator Laboratory, Batavia, Illinois) |
| title_full_unstemmed | Gravitational lensing Scott Dodelson (Fermi National Accelerator Laboratory, Batavia, Illinois) |
| title_short | Gravitational lensing |
| title_sort | gravitational lensing |
| topic | Gravitational lenses Gravitationslinse (DE-588)4210687-4 gnd |
| topic_facet | Gravitational lenses Gravitationslinse |
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