Project Summary: This project models the KMT-2024-BLG-0792 microlensing event. Using Python, we simulated ground and space-based photometry (Gaia L2) to resolve mass-parallax degeneracy. Results confirm a Saturn-mass free-floating planet (0.22 Mj) through finite-source and space-parallax effects.
The primary goal is to treat gravitational fields as transient non-linear lenses. By analyzing the magnification of background stellar light, we can detect non-luminous mass. This study focuses on identifying "Rogue Planets"—isolated planetary-mass objects not bound to any host star.
The photonic signal is modeled using the Paczyński equation. We incorporate the Finite-Source Effect, which accounts for the angular size of the source star, resulting in a characteristic "rounded peak" in the light curve.
We processed photometric data from two distinct spatial coordinates: the Earth and the Gaia satellite (located at the Lagrange Point L2).
This spatial separation acts as a 1.5 million km baseline interferometer, breaking the degeneracy between lens mass and distance.
The analysis reveals a high-magnification event with a very short timescale, confirming a sub-stellar lens.
Confirmed Mass
Saturn-Mass Object
The synergy between terrestrial photonics and space sensors allows the characterization of dark matter candidates with high precision. KMT-2024-BLG-0792 is a milestone in rogue planet detection via space-based parallax.