05137nam 2200577 a 450 991045842950332120200520144314.0981-277-799-7(CKB)1000000000398724(StDuBDS)AH24684777(SSID)ssj0000165171(PQKBManifestationID)11180850(PQKBTitleCode)TC0000165171(PQKBWorkID)10141975(PQKB)10134378(MiAaPQ)EBC1681587(WSP)00004890(Au-PeEL)EBL1681587(CaPaEBR)ebr10201285(CaONFJC)MIL505430(OCoLC)879025504(EXLCZ)99100000000039872420020509d2002 uy 0engur|||||||||||txtccrGravitational lensing and microlensing[electronic resource] /Silvia Mollerach, Esteban RouletNew Jersey World Scientificc20021 online resource (xi, 191 p. )illBibliographic Level Mode of Issuance: Monograph981-02-4852-0 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.An exposition of gravitational lensing phenomena. It presents the status of gravitational lensing and microlensing, covering the cosmological applications of the observed lensing by galaxies, clusters and the large scale structures, as well as the microlensing searches in the local group.A comprehensive and self-contained exposition of gravitational lensing phenomena. It presents the status of gravitational lensing and microlensing, covering the cosmological applications of the observed lensing by galaxies, clusters and the large scale structures, as well as the microlensing searches in the local group and its applications to unveil the nature of the galactic dark matter, the search for planetary objects and the distribution of faint stars in our galaxy.;The text is pitched at the level of the graduate student interested in the issues of astrophysics and cosmology, and should also be useful to specialist researchers as well.Gravitational lensesMicrolensing (Astrophysics)Electronic books.Gravitational lenses.Microlensing (Astrophysics)523.1/12Mollerach Silvia49789Roulet Esteban49790MiAaPQMiAaPQMiAaPQBOOK9910458429503321Gravitational lensing and microlensing2198670UNINA