My current research centers on observational aspects of relativistic stellar transients, especially gamma-ray bursts and gravitational-wave transients.
The prompt phase and the early afterglow of gamma-ray burst often shows more complex behavior than predicted by simple models. What can this teach us about the central engine that drives the relativistic jet?
What is the nature of the population of short gamma-ray bursts?
What is the nature of the population of neutron star mergers detected in gravitational emission by LIGO and Virgo.
In these studies, I typically combine optical and infrared observations with robotic telescopes that I have developed at the Observatorio Astronómico Nacional with observations from satellites, such as Swift and Fermi, and larger telescopes, such as GTC and Gemini.