Relativistic Universe: From Classical to Quantum

Dr. Shubhrangshu Ghosh pursued his PhD at the Indian Institute of Astrophysics, and obtained his PhD in 2010 from Jadavpur University. He did his initial doctoral studies at the Max Planck Institute for Radio Astronomy, as a DAAD Fellow. Thereafter he worked as a Post Doctoral researcher at several places in India and abroad, namely Indian Institute of Science, Academia Sinica, Taiwan, Tata Institute of Fundamental research, Bose Institute etc. His research interest primarily lies in theoretical high energy astrophysics, compact objects, black hole astrophysics, accretion and jets, dark matter, gravitational wave astrophysics, modified gravity and cosmology. He is a member of the Square Kilometer Array (SKA) Science Working Group. Dr. Ghosh is currently serving as a Chairperson of Center for Astrophysics, Gravitation and Cosmology (CAGC) & Faculty, Department of Physics, Shri Ramasamy Memorial (SRM) University Sikkim.Prof A R Rao joined the Department of Astronomy and Astrophysics, Tata Institute of Fundamental Research as a research trainee and completed his PhD in 1985. During 1987-88 he was a visiting professor at the Danish Space Research Institute, Denmark working on the WATCH instrument launched onboard the Granat satellite of Russia. His primary research interest is in High Energy Astrophysics, X-ray Astronomy, and X-ray Instrumentation, developing X-ray instruments for space observations and configuring space payloads for diverse applications. He was the co-investigator/ Principal Investigator of many space payloads including the highly successful Indian X-ray Astronomy Experiment (IXAE) and the CZT- Imager for the ASTROSAT satellite. Professor Rao retired as a Professor from Tata Institute of Fundamental Research.

• Black Hole Accretion is all about Sub-Keplerian Flows.- Radiative Acceleration of Relativistic Jets from Accretion Disks around Black Holes.- Noisy Accretion Flows.- Bondi Flow from Various Perspectives.- Dissipative Shocks in Accretion Flows: A Theoretical Forecast of the Spectral State Transitions in Black Hole X-ray Binaries.- Extreme Magnetic Fields around Black Holes.- Study of Accretion Disks around Black Holes with Two Types of Gas Inflows.- Universality of Coronal Properties in Accreting Black Holes.- Mode of Accretion and Jet Power in Episodic AGN Jets.- Can Morphological Dichotomy in Radio Galaxies be resolved through Galactic Potential−Induced Shocks.- Mean Field Dynamo: Beyond MHD.- General Relativistic Hydrodynamic Simulations around Accreting Black Holes.- Towards a Theory of Hydromagnetic Turbulence with Higher Order Fluid Moments.- Accretion Disk-Outflow/Jet and Hard State ULXs.- Magnetically Arrested Advective Accretion Flows and Jets/Outflows around Stellar Mass Black Holes: Explaining Hard State ULXs with GRMHD Simulations.- X-ray Observations of Black Hole Sources.- Light Curves and HID Signatures of Recurrent Black Hole X-ray Binary Sources.- QPOs in Compact Sources as a Non-Linear Hydrodynamical Resonance: Determining Spin of Compact Objects.- Estimation of Spin Parameters of Stellar Mass Black Holes: LMC X-1, LMC X-3 and GX 339-4.- Decoding the Deterministic Nature of Black Hole IGR J17091–3624.- Recent Observational and Theoretical Progress in the Study of Gamma-Ray Bursts.- Multi-Temperature Blackbody Emission in GRB 170409A. Ten Years of Searching for Relics of AGN Jet Feedback through RAD@home Citizen Science.- UV Star Formation Properties of NGC 1097.- Simultaneous Optical to X-ray Spectra of OJ 287 and X-ray Spectral Changes.- On the Origin of Merging Compact Object Binaries.- Observational Imprints of Accretion Disk on Observed GravitationalWave Data from LISA.- Can we Detect Super-Chandrasekhar White Dwarfs via Continuous Gravitational Waves.- Was it Really a Kerr Black Hole that EHT Imaged in 2019.- Exploring Magnetic Field Limits in Anisotropic Neutron Starsthrough GW190814 Tidal Deformability.- Observational Mass-Radius Relation for Magnetized White Dwarfs.- Simulating Super-Chandrasekhar White Dwarfs.- Ultralight Dark Matter - A Novel proposal.- The Origin of Cosmic Rays: An Enduring Mystery in Physics.- A Glitch in Gravity: Cosmic Lorentz-Violation from Fiery Big Bang to Glacial Heat Death.- Inference of Hubble Constant using Standard Sirens and Reconstructed Matter Density Field.- Novel Understanding of Cosmological Phenomena using Fast Radio Bursts.- Cosmic Phase Transitions in a Supercomputer.- Quantum Correlations in Neutrino and Neutral Meson Oscillations.- Influence of Gravity on the Quantum Speed Limit in Neutrino Oscillations.- Increasing Quantum Speed Limit of Relativistic Electron via Non-Uniform Magnetic Field.- Affine Connection and Quantum Theory.- Holographic Approach to Anomalous Transport in a Massive 𝑈(1)Gauge Theory.- Holographic Fermions in Nonlinear Arcsin Electrodynamics.- A Covariant Approach to the Berry Phase Arising due to Einstein Gravity.- Black Hole Thermodynamics in Modified Gravity.- Faster Rate of Hawking Radiation in Modified Gravity Constraining Dark Matter.- Deciphering Interstellar Ice Morphology: Atomistic Simulations Reveal the Complex Behavior of Ethanethiol.- Representation of Continuum Equations in Physical Components for Arbitrary Curved Surfaces Appearing in Biophysical Modeling.- Black Holes, White Dwarfs, Neutron Stars, related Fluid Mechanics and Nuclear Astrophysics: My Research Journey from 1997 to.