Moupiya Maji

Dr. Moupiya Maji


Office 451, Observatoire
41 22 37 92351
+41 22 37 92205

I am a postdoctoral researcher in the Department of Astronomy of the University of Geneva, Switzerland working in computational astrophysics with a focus on simulating the formation and evolution of early galaxies, especially Lyman Alpha Emitters. I obtained my PhD (advisor Prof. Yuexing Li) from The Pennsylvania State University (USA) in 2018. 

 My interests broadly lie at the intersection of theoretical and observational astrophysics. I have worked on a diverse range of topics including formation of star clusters, dwarf galaxies, the near field cosmology and radiative transfer of the first galaxies. In particular, I have explored the origin of universal lognormal mass functions of globular clusters using major galaxy merger simulations. This study confirmed the theoretical prediction that massive clusters preferentially form in extremely high pressure gas clouds in highly shocked regions produced by galaxy interactions and showed that massive clusters have quasi-lognormal initial mass functions which may slowly evolve into the universal lognormal profiles observed today. I have also studied the evolution of dwarf galaxies, in particular the significance of the observed phenomenon that the classical Milky Way satellites are distributed in a flattened plane (called Disk of Satellites or DoS) around Milky Way. In my works, I have investigated the observed satellite galaxies, a high resolution baryonic simulation of a Milky Way like system and statistically analyzed the thousands of satellite systems in the cosmological simulation Illustris and found that baryonic processes can indeed produce an anisotropic satellite distribution that originates from the large scale filamentary structure.

 Currently, I am working with Prof. Anne Verhamme on the radiative transfer of simulated high redshift galaxies and exploring their Lyman alpha and Lyman continuum emission properties to understand how do early galaxies become Lyman alpha emitters.