Research Paperin-progress

Gravitational Slingshot Dynamics in Three-Body Systems

Numerical investigation of energy amplification and orbital scattering in three-body gravitational slingshots around star–planet systems.

2026-astrophysicsorbital-dynamicsnumerical-methods
Projectpublished

Final Project: Dark Matter vs MOND Rotation-Curve Model Discrimination

Galaxy rotation curves fit under cold dark matter and MOND frameworks using MCMC validation plus AIC/BIC diagnostics, with synthetic error-scaling tests to quantify data quality required for decisive model separation.

2023-06-astrostatisticsgalactic-dynamicsdark-mattermondmodel-selection
Projectpublished

Lab 4: Radial Velocity Model Selection for Gliese 581

Competing multi-planet radial velocity models evaluated with chi-square fitting, AIC/BIC penalties, and cross-validation to reassess the reported significance of Gliese 581 g.

2023-05-astrostatisticsexoplanetsmodel-selectionradial-velocity
Projectpublished

Lab 2: Brown Dwarf Temperature Inference with MCMC

Bayesian fitting of Planck-law spectral models using custom MCMC samplers to estimate brown dwarf effective temperature and quantify posterior sensitivity across prior choices.

2023-03-astrostatisticsbayesian-methodsmcmcstellar-physics
Projectpublished

Lab 1: Hubble Constant Estimation and Hubble Time Inference

Weighted least-squares regression and bootstrap resampling applied to Type Ia supernova distance-modulus data to estimate H0 and propagate uncertainty into the Hubble time.

2023-02-astrostatisticscosmologyregressionuncertainty-analysis

Jorge Casas

Computational astrophysicist & mechanical engineer exploring the cosmos and designing solutions.

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