Dec 11 – 15, 2023
Tsung-Dao Lee Institute
Asia/Shanghai timezone

Standing shocks in accretion flows around black holes and associated observational signatures

Dec 15, 2023, 11:51 AM
Hall # 10

Hall # 10

Contributed talk in mini symposium Accretion Processes


Chandra Bahadur Singh (Yunnan University)


Low angular momentum flows around black holes are likely to form standing shocks during the accretion processes. The shocks possibly encounter instabilities leading to various observational signatures associated with inflows and outflows. In our work, we address a range of issues like flaring in under-luminous Sgr A* with supermassive black hole and outflow properties in super-accretors like SS 433 and ultraluminous X-ray sources with stellar-mass black holes.


  1. T. Okuda , C.B. Singh, R. Aktar, 2023, MNRAS, 522, 1814.

  2. T. Okuda , C.B. Singh C.B., R. Aktar, 2022, MNRAS, 514, 5074.

  3. C.B. Singh, T. Okuda, R. Aktar, 2021, RAA, 21, 134.

  4. T. Okuda, C.B. Singh, 2021, MNRAS, 503, 586.

Primary authors

Chandra Bahadur Singh (Yunnan University) Prof. Toru Okuda (Hokkaido University of Education)


Dr Ramiz Aktar (National Tsing Hua University)

Presentation materials