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Fundamentals of Polymer Science

Basic concepts, General mechanisms of polymerization reactions- synthesis, kinetics, techniques, Structure- property relationships of polymers.Copolymerization-mechanism-kinetics.Thermodynamics of polymer solutions, Crystal morphologies-Thermal transitions in polymers--Characterization and Testing-Molecular weight determination- Spectroscopy techniques, Thermal properties. Polymer degradation. Production, properties and applications of industrial polymers and general purpose rubbers.  Applications of polymers in materials processing(ceramic, semiconductors and metals).

 

Physics of the Sun

Characteristics of the Sun – internal structure – s olar observations – solar atmosphere – oscillations – Convection – rotation – magnetism – chromosphere – corona – solar wind – quiet Sun – Active Sun – Helioseismology

Exoplanets & Astrobiology

Properties of known exoplanets – exoplanet surveys – detection methods – formation, interior and evolution of planets – brown dwarf exoplanets c onnection – close orbiting exoplanets – multiple planet systems – planets in binary systems – moons of exoplanets Origin of life – prebiotic molecules and developmen t of life forms – habitable zone – Mars and life – Icy bodies (Europa and others) – Titan’s atm osphere – detection of exoplanets – search for extraterrestrial life.

Time Domain Astronomy

Scientific background : Variable stars, binary star s and their evolution, supernovae, pulsars and associated phenomena (even include testing theories of gravity using pulsars), accretion and associated phenomena (like x-ray bursts), gamma-ray bursts, rotating radio transients (RRATS), jets & outflows (micro-quasars etc), AGNs-blazars-Q SOs A survey of missions and their ways of operation [c an go to technical levels, to the operations of these instruments] :- Optical/IR surveys : Pan-STAR RS (Panoramic Survey Telescope and Rapid Response System), PTF (Palomar Transient Fact ory), Trans

High Resolution Spectroscopy

Atomic structure: review of Schrodinger equation - overview of single and multiple electron systems - perturbations and level splittings - pari ty - spin orbit coupling - zeeman effect - hyperfine structure - Boltzmann population of energ y levels in thermal equilibrium - Saha equation. Radiative transitions: semi-classical the ory - dipole approximation - Einstein coefficients and oscillator strengths - selection r ules and transition rates.

Polarization in Astronomy

Unpolarised light, Linear, Circular, Elliptical pol arised light, Partially and fully polarised light, Stokes parameters, Dichroism, Birefringence, Poinca re sphere - Mueller and Jones representations with applications - Complex plane o f polarisation states. Generation of polarised light in astronomy - polari sation by reflection, scattering geometry, magnetic fields - dependence on refractive index - synchrotron emission - Faraday rotation - Dust in ISM.

High Redshift Universe

Basic cosmology - Expansion of the universe -- scal e factor -- cosmological redshift -- descriptive overview of inflation, unification of f orces and fundamental particles. Primordial nucleosynthesis -- elemental abundances : predictio ns and observations. Cosmic Microwave Background - detection, power spectrum, origin of C MB, anisotropies in the CMB and their origin -- overview of COBE and WMAP probes - missio n and instrumentation.

Accretion Physics

Introduction: Accretion as a source of energy --- observational consequences. Accretion in binary system: Introduction --- Interacting binary system --- Roche lobe overflow --- Disk formation --- Viscous torque --- The α disk viscosity --- Low and high-mass X-ray binarie s. Accretion disk (thin accretion disk) Theory: Basic concepts --- Structure of thin disk --- The emitted spectrum of steady α -disk --- Time dependence and stability --- the the rmal disk instability model (dwarf novae) --- wind accretion --- Disk around young stars --- confrontation with observations.

Radiation Hydrodynamics

Introduction : How radiation affects the flow of ma tter -- Cooling, Heating, Momentum transfer, Matter density variation due to annihilation/pair-p roduction. Review of gas dynamics: Ideal fluids, Transport terms - Viscosity & heat conducti on, Sound waves, Shocks - Rankine-hugoniot relations. Review of radiation physics : Intensity, Flux, Energy density, Stress tensor, Transport equations, Diffusion approximation, Coupling terms in Euler's equations.

Advanced Astronomical Imaging

Imaging and detector basics - resolution, sensitivi ty, noise, dynamic range, efficiency, linearity - image formation at focal plane - Fourier transform - Deconvolution and Image reconstruction - Photography, CCD -- Large optical / IR telescopes a nd their designs - thin lens - segmented mirrors - Active optics - Designs of few upcoming l arge telescopes (eg.

Formation of Stars and Planets

The interstellar medium and its phases - dust - mol ecular clouds - virial theorem analysis. Star clusters - OB associations - T and R associations - initial mass function. Heating and cooling of clouds - cloud thermal structure - build up of mole cules - molecular transitions of H2, CO. Cloud equilibrium and stability - Jeans mass - isothermal spheres - basic magnetohydrodynamics - magnetic support - ambipolar diffusion - inside-out collapse - rotational effects.

Estimation and Stochastic Processes

Elements of probability theory - random variables-G aussian distribution-stochastic processes- characterizations and properties-Gauss-Markov proce sses-Brownian motion process-Gauss- Markov models - Optimal estimation for discrete-tim e systems - fundamental theorem of estimation-optimal prediction. Optimal filtering - Weiner approach-continuous time Kalman Filter-properties and implementation- steady-state Kalman Filter-discrete-time Kalman Filter- implementation-sub-optimal steady-state Kalman Filt er-Extended Kalman Filter-practical applications.

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