Research Areas
Our research focuses on gravitational wave astronomy, numerical relativity, and analytical modeling techniques to explore the fundamental nature of spacetime and extreme astrophysical phenomena.
Gravitational Waves
Gravitational waves serve as carriers of invaluable information regarding the motion of celestial bodies in the Universe. Unlike electromagnetic waves, gravitational waves are neither absorbed nor reflected by cosmic matter, thereby providing an unobstructed view of their original form.
Current Focus Areas:
- Coherent detection and reconstruction of burst signals using detector networks
- Gaussian Mixture Modeling (GMM) to differentiate true signals from glitches
- Analysis of transient gravitational wave signals from supernovae and gamma-ray bursts
- Development of advanced methods for glitch rejection to enhance search sensitivity
- Template-free searches for signals with uncertain waveform predictions
Numerical Relativity
When dealing with extreme situations where approximations become unreliable, such as during the merger of binary black hole systems, we must solve Einstein's field equations without approximation using advanced computational methods.
Current Focus Areas:
- Einstein Toolkit simulations for high-energy astrophysical phenomena
- Finite Difference Method (FDM), Spectral Method, and Adaptive Mesh Refinement (AMR)
- High-precision gravitational waveform calculations for detection algorithms
- Convergence tests and validation through post-Newtonian approximations
- Energy change calculations and gravitational wave emission modeling
- Development of efficient numerical algorithms for enhanced performance
Effective One-Body (EOB) Formalism
The EOB formalism provides an analytical approach to model the dynamics of binary systems by mapping the two-body problem onto an effective one-body problem in a deformed spacetime, bridging post-Newtonian theory with numerical relativity.
Current Focus Areas:
- EOB Hamiltonian construction for binary black hole and neutron star systems
- Analytical waveform generation for gravitational wave data analysis
- Calibration of EOB models using numerical relativity simulations
- Post-Newtonian expansion and resummation techniques
- Fast and accurate waveform templates for LIGO-Virgo searches
Join Our Research
We welcome motivated students and researchers interested in contributing to cutting-edge astrophysics research.