LEADER 05216nam 2200673 a 450 001 9910451594403321 005 20200520144314.0 010 $a981-4322-07-5 035 $a(CKB)2550000000101667 035 $a(EBL)919120 035 $a(OCoLC)794328412 035 $a(SSID)ssj0000659404 035 $a(PQKBManifestationID)12272017 035 $a(PQKBTitleCode)TC0000659404 035 $a(PQKBWorkID)10698288 035 $a(PQKB)10093297 035 $a(MiAaPQ)EBC919120 035 $a(WSP)00002685 035 $a(Au-PeEL)EBL919120 035 $a(CaPaEBR)ebr10563571 035 $a(CaONFJC)MIL505481 035 $a(EXLCZ)992550000000101667 100 $a20120607d2012 uy 0 101 0 $aeng 135 $aur|n|---||||| 181 $ctxt 182 $cc 183 $acr 200 00$aVignettes in gravitation and cosmology$b[electronic resource] /$feditors, L. Sriramkumar, T.R. Seshadri 210 $aSingapore $cWorld Scientific Pub. Co.$d2012 215 $a1 online resource (284 p.) 300 $aDescription based upon print version of record. 311 $a981-4322-06-7 320 $aIncludes bibliographical references and index. 327 $aPreface; Contents; 1. Non-linear gravitational clustering in an expanding universe Jasjeet Singh Bagla; 1.1 Introduction; 1.2 Gravitational clustering; 1.2.1 Linear approximation; 1.2.2 Quasi-linear approximations; 1.3 In search of universalities; 1.3.1 Mode coupling: Effect of small scale perturbations; 1.3.2 Mode coupling: Effect of large scale perturbations; 1.4 Conclusions; Acknowledgments; References; 2. Dark ages and cosmic reionization Tirthankar Roy Choudhury; 2.1 Introduction; 2.2 Theoretical formalism; 2.2.1 Cosmological radiation transfer; 2.2.2 Post-reionization epoch 327 $a2.2.2.1 Resonant Lyman series absorption2.2.2.2 Continuum absorption; 2.2.3 Pre-overlap epoch; 2.2.4 Reionization of the inhomogeneous IGM; 2.3 Modelling of reionization; 2.3.1 Reionization sources; 2.3.1.1 Mass function of collapsed haloes; 2.3.1.2 Star formation rate; 2.3.1.3 Production of ionizing photons; 2.3.1.4 Feedback processes; 2.3.1.5 Quasars; 2.3.2 Illustration of a semi-analytical model; 2.4 Current status and future; 2.4.1 Simulations; 2.4.2 Various observational probes; 2.4.2.1 Absorption spectra of high redshift sources; 2.4.2.2 CMBR observations; 2.4.2.3 Ly emitters 327 $a2.4.2.4 Sources of reionization2.4.2.5 21cm observations; 2.5 Concluding remarks; References; 3. Probing fundamental constant evolution with redshifted spectral lines Nissim Kanekar; 3.1 Introduction; 3.2 Redshifted spectral lines: Background; 3.3 Optical techniques; 3.3.1 The alkali doublet method; 3.3.2 The many-multiplet method; 3.3.3 Molecular hydrogen lines; 3.4 "Radio" techniques; 3.4.1 Radio-optical comparisons; 3.4.2 Radio comparisons; 3.4.3 Ammonia inversion transitions; 3.5 "Conjugate" Satellite OH lines; 3.6 Results from the different techniques; 3.7 Future studies; 3.8 Summary 327 $a3.9 AcknowledgmentsReferences; 4. Averaging the inhomogeneous universe Aseem Paranjape; 4.1 Introduction; 4.2 History of the averaging problem; 4.2.1 Noonan's averaging scheme; 4.2.2 Futamase's scheme; 4.2.3 Boersma's scheme; 4.2.4 Kasai's scheme; 4.2.5 Conventional wisdom and controversy; 4.3 Buchert's spatial averaging of scalars; 4.4 Zalaletdinov's Macroscopic Gravity (MG); 4.4.1 A spatial averaging limit; 4.5 Backreaction in cosmological perturbation theory; 4.5.1 Lessons from linear theory; 4.5.2 The nonlinear regime; 4.5.2.1 Dimensional arguments, and why they fail 327 $a4.5.3 Calculations in an exact model4.6 Conclusions; 4.6.1 The "Special Observer" assumption; References; 5. Signals of cosmic magnetic fields from the cosmic microwave background radiation T. R. Seshadri; 5.1 Introduction; 5.2 Origin of CMBR; 5.2.1 Homogeneous universe; 5.3 Origin of CMBR and the homogeneity of the universe; 5.4 Finer features of the CMBR: A brief introduction; 5.4.1 Temperature anisotropy; 5.5 Origin of temperature anisotropy in the CMBR; 5.6 Characterizing the nature of CMBR polarization anisotropy; 5.7 Origin of CMBR polarization anisotropy; 5.8 Cosmic magnetic fields 327 $a5.9 Polarization in CMBR due to magnetic fields 330 $aThis book comprises expository articles on different aspects of gravitation and cosmology that are aimed at graduate students. The topics discussed are of contemporary interest assuming only an elementary introduction to gravitation and cosmology. The presentations are to a certain extent pedagogical in nature, and the material developed is not usually found in sufficient detail in recent textbooks in these areas. 606 $aGravitation 606 $aCosmology 606 $aVignettes 608 $aElectronic books. 615 0$aGravitation. 615 0$aCosmology. 615 0$aVignettes. 676 $a521.1 676 $a523.01 701 $aSriramkumar$b L$0981575 701 $aSeshadri$b T. R$0981576 801 0$bMiAaPQ 801 1$bMiAaPQ 801 2$bMiAaPQ 906 $aBOOK 912 $a9910451594403321 996 $aVignettes in gravitation and cosmology$92240292 997 $aUNINA