As the first image of the black hole shadow of M87 was obtained by EHT and its subsequent verification with computer simulations of accretion disc and the emanating jets, investigation in accretion processes attained a renewed importance in astrophysics research. Important as it may be, but the general knowledge of accretion process is not very enviable in India. To the extent that the M87 black hole shadow was initially thought by many to be a confirmation of J. P. Luminet’s (later by Kip Thorne) image of a thin Keplerian disc.  
Today India is a part of many mega projects like TMT, SKA, Indigo which will collect a plethora of observational data which are to be interpreted. Various Indian research centers and academic centers already have or are in the process of installing high-performing computing (HPC) facilities. Therefore, young Indian researchers have this unique opportunity to participate in cutting-edge research related to high energy relativistic astrophysics around black holes. Accretion flows around black holes require expertise in various branches of physics like fluid mechanics (magnetic as well as non-magnetic), relativity, radiation physics, plasma physics, etc. This workshop is aimed at training young researchers with a hands-on session to generate the seminal models of accretion and jet launching models. Such activity would make this field of research more popular.

 Plan for the workshop:
The workshop will start with about two lectures by leading experts who would outline the achievements and challenges in the field. Followed by short talks by experts on various seminal models in accretion flow (Bondi, Keplerian disc, transonic advective flow, ADAF, photon propagation around Schwarzschild black hole) and jet launching models. The participants will then be asked to write short semi-analytical codes to generate a couple of seminal models. Participants may be asked to solve the Bondi flow as a representative case of transonic solutions, Keplerian disc, and photon propagation around Schwarzschild black holes (the details will be finalized later).   

Expected participants:
Thirty to forty

Program: please click here

Participants should come with laptops with Fortran or  C compilers installed to write short codes to obtain solutions of accretion and jet models. If comfortable, participants may also use python.

Expression of Interest:
Indranil Chattopadhyay (ARIES), Bhargav Vaidya (IIT-Indore), Banibrata Mukhopadhyay (IISc), Santabrata Das (IIT G), Dipanjan Mukherjee (IUCAA), Gulab Dewangan (IUCAA)