arXiv:2408.16020v1 Announce Type: new
Abstract: By considering the analytic, static and spherically symmetric solution for the Schwarzschild black holes immersed in dark matter fluid with non-zero tangential pressure cite{Jusufi:2022jxu} and Hernquist-type density profiles cite{Cardoso}, we compute the luminosity of accretion disk. We study the circular motion of test particles in accretion disk and calculate the radius of the innermost stable circular orbits. Using the steady-state Novikov-Thorne model we also compute the observational characteristics of such black hole’s accretion disk and compare our results with the usual Schwarzschild black hole in the absence of dark matter fluid. We find that the tangential pressure plays a significant role in decreasing the size of the innermost stable circular orbits and thus increases the luminosity of black hole’s accretion disk.
Future Roadmap for Readers
This article examines the conclusions drawn from the analysis of the analytic, static, and spherically symmetric solution for Schwarzschild black holes immersed in dark matter fluid with non-zero tangential pressure. The aim is to compute the luminosity of the accretion disk and study the circular motion of test particles within it. The article also compares these findings with the standard Schwarzschild black hole in the absence of dark matter fluid.
Key Findings:
- The inclusion of tangential pressure in the dark matter fluid significantly affects the innermost stable circular orbits and the luminosity of the black hole’s accretion disk.
- The tangential pressure decreases the size of the innermost stable circular orbits, leading to an increase in the luminosity of the accretion disk.
Future Challenges:
- Further research is needed to explore the implications of these findings in different astrophysical scenarios and the potential impact on our understanding of black hole dynamics.
- Understanding the underlying mechanisms that cause the tangential pressure in the dark matter fluid would be crucial for developing a comprehensive model.
- Investigating the interplay between dark matter and other astrophysical phenomena, such as magnetic fields or the presence of other forms of matter, could provide additional insights.
- Conducting observational studies to verify the predictions made by the theoretical model could pose technical challenges, but it is crucial for confirming the validity of the findings.
Potential Opportunities:
- Applying these findings to the study of other astrophysical objects, such as active galactic nuclei or quasars, could provide a better understanding of their accretion processes.
- Exploring the implications of tangential pressure in other gravitational scenarios, such as rotating or charged black holes, could lead to new insights into the behavior of these objects.
- The study of tangential pressure in dark matter fluid may contribute to our understanding of the nature and properties of dark matter itself.
- Developing new observational techniques and instruments to detect and analyze the properties of accretion disks around black holes could lead to exciting discoveries.
Conclusion:
The analysis of Schwarzschild black holes immersed in dark matter fluid with tangential pressure has revealed important insights into the behavior of accretion disks and the size of innermost stable circular orbits. This research opens up new avenues for further exploration, posing challenges and presenting opportunities for future studies in astrophysics and our understanding of black hole dynamics.