| Name: | PRIYESH KUMAR TRIPATHI |
| Affiliation: | Aryabhatta Research Institute of Observational Sciences, Nainital |
| Conference ID : | ASI2024_627 |
| Title : | Effect of the fluid composition on the Bondi-Hoyle accretion flow |
| Authors : | Priyesh Kumar Tripathi (1,2), Indranil Chattopadhyay (1), Raj Kishor Joshi (1,3) |
| Authors Affiliation: | 1. Aryabhatta Research Institute of Observational Sciences (ARIES), Manora Peak, Nainital, 263001, India
2. Department of Applied Physics, Mahatma Jyotiba Phule Rohilkhand University, Bareilly, 243006, India
3. Department of Physics, Deen Dayal Upadhyay Gorakhpur University, Gorakhpur, 273009, India |
| Mode of Presentation: | Poster |
| Abstract Category : | High Energy Phenomena, Fundamental Physics and Astronomy |
| Abstract : | Time-dependent fluid equations can describe a wide range of astrophysical problems like accretion flow around a compact object, outflows emanating from Young stars, or Active Galactic Nuclei (AGN). Numerical simulation of fluid equations provides an efficient way to study these complicated problems by allowing us to go beyond the steady state approach. We study axisymmetric Bondi Hoyle accretion onto the compact object using a non relativistic simulation code. In an astrophysical scenario, where the flow is often transonic and trans-relativistic, the thermodynamics of the flow change depending on the temperature and composition. Therefore, we use relativistically correct Chattopadhyay & Ryu EoS (2009) having a variable adiabatic index. We considered the compact object moving supersonically in an ambient medium, where we found that even for the same parameters, the mass accretion rate can be influenced by the different compositions, whether it is made of a pure electron-proton pair, or pure electron-positron pair, or a mixture of electron, proton, and positron. |
