Dr. Xian-Yu Wang is a postdoctoral researcher in the Astronomy Department at Indiana University. His research specializes in detecting hot Jupiter companions through Transit Timing Variations, using high-precision photometry and radial velocity data to identify potential planetary perturbers and constrain their orbital architectures. He also investigates the orbital dynamics and spin-orbit alignment of exoplanetary systems. His work primarily focuses on warm Jupiters, brown dwarfs, and binary star systems, shedding light on the complex interplay between stellar obliquity, planetary formation, and system evolution. He leverages observational data from TESS, NEID, PFS, HIRES, and APF to refine our understanding of these astrophysical phenomena.