Postdoctoral Researcher, Astronomy
After moving to Florida from his native Colombia, Alejandro obtained his BS in systems analysis from the University of Miami before moving to New York for work in financial services. Unsatisfied in this field, he left private industry to pursue his long-time interest in astronomy, obtaining a BA in physics from Hunter College. At Hunter he studied brown dwarfs in the quest to disentangle age, mass, and metallicity effects in their spectra. During his first year at Columbia, Alejandro worked in designing an algorithm for cosmological simulations to properly include supernova feedback in galactic formation and evolution. For his thesis work, he investigated correlations between age and magnetic activity in main-sequence stars. He currently continues that work, looking at new samples of stars in the Galaxy.
Magnetic activity in main-sequence stars and ultra cool dwarfs. Brown dwarf atmospheres.