Name: Kishlay Singh
Affiliation: Indian Institute of Technology Indore
Conference ID : ASI2022_561
Title : General Relativistic Radiative Transfer in Black Hole Systems
Authors : Kishlay Singh, Dr Bhargav Vaidya
Abstract Type: Poster
Abstract Category : General Relativity and Cosmology
Abstract : The continuous efforts to acquire images of the black hole’s immediate environment at the event horizon benefit, when the observational signatures are compared to dynamical simulations created by efficient imaging codes. Then this synthetic data is compared to observational data helping us to test the theory of general relativity in the strong field limit. Accreting supermassive black holes are also the origin of polarised radiation, which travels through high gravity regions near the event horizon before reaching the observer. Polarised emission from an accreting AGN can reveal information on the source’s magnetic field morphology. We aim to construct a new public general relativistic radiative transfer (GRRT) code that will generate accurate simulations of relativistic plasma in strong gravity regions, including the polarised radiative transmission. We aim to present our work on producing emission maps of the black holes via the ray-tracing method. We plotted the geodesic equations of photons for the Kerr type black hole and performed the shadow calculations of the black hole for various spins and viewing angles. We then produced an emission map for a ‘toy model’ accretion disk and verified our work with previous standard results. Later we modified our code to produce an emission map for a rotationally supported tori model accretion ring where the shape of the torus was influenced by general relativistic effects. We are currently working on adding polarised radiative transmission for both opaque and translucent torus boundary surfaces.