Role of Black Holes in Testing Modified Theories of Gravity
A special issue of Symmetry (ISSN 2073-8994). This special issue belongs to the section "Physics".
Deadline for manuscript submissions: closed (31 December 2023) | Viewed by 6480
Special Issue Editor
Special Issue Information
Dear Colleagues,
In the past few years, the spectacular progress made in gravitational wave detection by LIGO/Virgo and shadow observations by the Event Horizon Telescope collaboration has shed light on the previously inaccessible horizon-scale physics. These observations are exciting, not only because of the results they confirm but also because they allow us to test our current understanding of gravitational theory in the strong-field and highly relativistic regimes, as well as probe any deviation from general relativity. Given the large number of modified theories to be tested, a more sophisticated approach would be to develop model-independent ways of testing gravity theory with electromagnetic/gravitational waves and to interpret astrophysical observables within a more general and bias-independent theoretical framework to uniquely determine the nature of the astrophysical black hole. In this Special Issue of the journal Symmetry, we welcome contributions on identifying novel and interesting relativistic phenomena that are absent in their general relativity counterpart, estimating astrophysical black hole’s parameters, examining the compatibility of modified gravity black holes with multi-messenger observational data, and testing no-hair theorem. Testing a theory requires finding tight logical connections between its hypotheses so that one can draw justified conclusions about how to revise a theory in the face of observational findings in conflict with its predictions. Work in this direction is important not only to make progress in finding the correct theoretical model but also to increase the possibility of finding these potential signals through future observations.
We would like to call for papers sharing ideas on a diversity of topics from a theoretical/observational perspective, including but not limited to:
- Black hole solutions in modified gravity theories;
- Dynamical black holes and trapping horizons;
- Classical and quantum aspects of black holes;
- Cosmic censorship;
- Gravitational lensing;
- Shadow;
- Stability analyses;
- Energy Extraction;
- Accretion flow onto black holes;
- Gravitational waves;
- LIGO/Virgo and EHT observational bounds on modified theories.
Dr. Rahul Kumar Walia
Guest Editor
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