The nature of dark matter

Using cosmological hydrodynamical simulations, I study galaxy formation in several popular alternative dark matter models:

• Self-Interacting Dark Matter (SIDM)
• QCD Axions and ultra-light Axion-like Particles (ALPs)

A broad range of systems have been studied:

1. Ultra-small and compact substructures (miniclusters)
2. Low-mass dwarf galaxies in the Local Group (MW & M31)
3. Bright "isolated" dwarf galaxies in the field
4. Massive, dynamically-relaxed galaxy clusters
5. Galaxies in the early Universe

Galaxy formation & evolution at high redshift

Using the data from the IllustrisTNG simulation and the SKIRT dust radiative transfer code, I have generated an array of mock observables for simulated galaxies at high redshift. The data product includes far-UV to far-IR SEDs, photometry in JWST NIRCam and MIRI bands, and high-resolution optical spectrum (with emission line measurements and spectral indices). The same technique has been applied to the THESAN re-ionization simulation and will be applied for galaxy merger identification for JWST observations in near future. For more information about related projects.

High-redshift quasars and SMBH seeding

In my first year, I have developed a model for the evolution of bolometric quasar luminosity functions based on a large compilation of multi-band observations. I have also explored the scenario of SMBH seeding with dissipative self-interacting dark matter. For more information about related projects.