03693nam a2200325 a 4500 ebr10201285 CaPaEBR m u cr cn||||||||| 020509s2002 njua sb 001 0 eng d 2002280654 9810248520 CaPaEBR CaPaEBR (OCoLC)614463559 QB857.5.G7 M65 2002eb 523.1/12 21 Mollerach, Silvia. Gravitational lensing and microlensing [electronic resource] / Silvia Mollerach, Esteban Roulet. New Jersey : World Scientific, c2002. xi, 191 p. : ill. Includes bibliographical references (p. 175-187) and index. Machine generated contents note: Preface vii -- Chapter 1 Historical introduction 1 -- Chapter 2 The deflection of light 7 -- 2.1 Basics of General Relativity7 -- 2.1.1 Introduction7 -- 2.1.2 Tensors in curved spacetimes 9 -- 2.1.3 Motion of particles 13 -- 2.1.4 The spacetime curvature15 -- 2.1.5 The Einstein equation17 -- 2.1.6 The Schwarzschild metric 18 -- 2.2 The bending of light21 -- 2.2.1 Point-like deflector21 -- 2.2.2 Time delay24 -- 2.2.3 Extended mass distribution25 -- Chapter 3 Gravitational lensing theory 29 -- 3.1 The lens equation29 -- 3.1.1 Point-like lenses 29 -- 3.1.2 Extended lenses33 -- 3.2 The surface brightness conservation 34 -- 3.3 Amplification35 -- 3.4 Caustics and critical lines41 -- 3.5 Fermat's principle42 -- 3.6 Galaxy lens models45 -- 3.6.1 Circularly symmetric lenses45 -- 3.6.2 Non-circularly symmetric lenses50 -- 3.7 The folded sky51 -- 3.8 Folds and cusps58 -- 3.8.1 Magnification near a fold60 -- 3.8.2 Magnification near a cusp62 -- 3.8.3 The binary lens65 -- Chapter 4 Macrolensing results 69 -- 4.1 Lensing of quasars70 -- 4.2 Time delays and Ho74 -- 4.3 Statistical lensing and cosmological parameters78 -- 4.4 Strong lensing by clusters81 -- 4.5 Weak lensing in clusters84 -- 4.6 Cosmic shear87 -- 4.7 Quasar-galaxy correlations94 -- 4.8 Lensing of the Cosmic Microwave Background94 -- Chapter 5 Microlensing I: Basics 99 -- 5.1 The Galaxy in brief100 -- 5.1.1 The thin and thick disks100 -- 5.1.2 Galactic spheroid and bulge101 -- 5.1.3 The dark halo103 -- 5.2 Basic microlensing theoretical tools105 -- 5.2.1 The light curve105 -- 5.2.2 Optical depth107 -- 5.2.3 Event duration distribution108 -- 5.3 Microlensing of unresolved sources114 -- 5.4 Observational searches of microlensing117 -- 5.4.1 Searches towards the Magellanic Clouds118 -- 5.4.2 Searches towards the bulge122 -- Chapter 6 Microlensing II: Beyond the simplest light curve 125 -- 6.1 Binary lenses126 -- 6.1.1 The complex lens equation126 -- 6.1.2 Microlensing by binaries131 -- 6.1.3 Planetary searches136 -- 6.2 Further determinations of the lensing parameters139 -- 6.2.1 Proper motion141 -- 6.2.2 Limb darkening147 -- 6.2.3 Parallax measurements148 -- 6.3 Astrometric microlensing152 -- 6.4 Quasar microlensing156 -- Appendix A Cosmology tools 161 -- A.1 The Friedmann-Robertson-Walker Universe161 -- A.2 The distance scales163 -- A.3 Large scale structures166 -- A.4 Cosmic Microwave Background anisotropies170 -- Bibliography 175 -- Index 189. Electronic reproduction. Palo Alto, Calif. : ebrary, 2013. Available via World Wide Web. Access may be limited to ebrary affiliated libraries. Gravitational lenses. Microlensing (Astrophysics) Electronic books. local Roulet, Esteban. ebrary, Inc. http://site.ebrary.com/lib/rucke/Doc?id=10201285 An electronic book accessible through the World Wide Web; click to view 119586 119586